Aetherra Security Operations Guide

Maintained and officially operated by Aetherra Labs. Powered by Aetherra Labs.

Updated: 2025-11-01

This guide covers comprehensive security operations for Aetherra OS deployments. Implement defense-in-depth, monitor threats, and respond to incidents effectively.

Purpose and Scope

Implement security best practices
Monitor and detect security threats
Respond to security incidents
Maintain audit logs and compliance
Secure API access and authentication
Protect sensitive data

Security Architecture

Defense-in-Depth Model

┌──────────────────────────────────────────────────────────┐
│               Security Layers (Defense-in-Depth)          │
└──────────────────────────────────────────────────────────┘

LAYER 1: NETWORK
├─ Firewall rules (allow-list only)
├─ DDoS protection (rate limiting, IP blocking)
├─ TLS/SSL encryption (TLS 1.3+)
└─ Network segmentation (DMZ, private subnets)

LAYER 2: APPLICATION
├─ Authentication (JWT, API keys, OAuth)
├─ Authorization (RBAC, permission checks)
├─ Input validation (sanitization, type checking)
└─ Rate limiting (per-user, per-endpoint)

LAYER 3: DATA
├─ Encryption at rest (AES-256)
├─ Encryption in transit (TLS)
├─ Data classification (public, internal, confidential)
└─ Access controls (least privilege)

LAYER 4: IDENTITY
├─ Strong password policies
├─ Multi-factor authentication (MFA)
├─ Session management (timeout, rotation)
└─ Identity federation (SSO)

LAYER 5: MONITORING
├─ Security event logging
├─ Intrusion detection (IDS/IPS)
├─ Anomaly detection (behavior analysis)
└─ Incident response (SIEM integration)

LAYER 6: COMPLIANCE
├─ Audit trails (immutable logs)
├─ Policy enforcement (automated checks)
├─ Vulnerability scanning
└─ Penetration testing (quarterly)

Quick Start

Minimal Security Setup (15 Minutes)

1. Enable security features in config.json:

{
  "security": {
    "enabled": true,
    "authentication": {
      "require_token": true,
      "token_expiry_hours": 24,
      "allow_anonymous": false
    },
    "rate_limiting": {
      "enabled": true,
      "requests_per_minute": 60
    },
    "network": {
      "strict_mode": true,
      "allowlist": ["localhost", "127.0.0.1"]
    },
    "audit_logging": {
      "enabled": true,
      "log_path": "logs/audit.log"
    }
  }
}

2. Generate API tokens:

# Generate secure API token
python -c "import secrets; print(secrets.token_urlsafe(32))"

# Set token in environment
export AETHERRA_API_TOKEN="your_generated_token_here"

3. Configure firewall:

# Ubuntu/Debian with ufw
sudo ufw default deny incoming
sudo ufw default allow outgoing
sudo ufw allow 22/tcp      # SSH
sudo ufw allow 3001/tcp    # Aetherra Hub (adjust as needed)
sudo ufw enable

# Check status
sudo ufw status verbose

4. Enable TLS:

# Generate self-signed certificate (development)
openssl req -x509 -newkey rsa:4096 -nodes \
  -keyout key.pem -out cert.pem -days 365 \
  -subj "/CN=localhost"

# Production: Use Let's Encrypt
sudo certbot certonly --standalone -d aetherra.example.com

5. Test security configuration:

# Test API authentication
curl -H "Authorization: Bearer $AETHERRA_API_TOKEN" \
  http://localhost:3001/api/health

# Test rate limiting
for i in {1..100}; do
  curl http://localhost:3001/api/health
done
# Should receive 429 Too Many Requests after limit

Authentication and Authorization

API Token Authentication

Token generation:

# tools/generate_api_token.py
import secrets
import hashlib
import json
from datetime import datetime, timedelta

def generate_api_token(user_id: str, expiry_days: int = 30) -> dict:
    """Generate secure API token."""

    # Generate token
    token = secrets.token_urlsafe(32)

    # Hash token for storage
    token_hash = hashlib.sha256(token.encode()).hexdigest()

    # Calculate expiry
    expiry = (datetime.now() + timedelta(days=expiry_days)).isoformat()

    return {
        "token": token,  # Give to user
        "token_hash": token_hash,  # Store this
        "user_id": user_id,
        "expiry": expiry,
        "created_at": datetime.now().isoformat()
    }

if __name__ == "__main__":
    import sys
    user_id = sys.argv[1] if len(sys.argv) > 1 else "default_user"
    token_data = generate_api_token(user_id)

    print(f"API Token: {token_data['token']}")
    print(f"Store this hash: {token_data['token_hash']}")
    print(f"Expires: {token_data['expiry']}")

Token validation:

# Aetherra/security/token_validator.py
import hashlib
import json
from datetime import datetime
from typing import Optional

class TokenValidator:
    """Validate API tokens."""

    def __init__(self, tokens_file: str = "data/api_tokens.json"):
        self.tokens_file = tokens_file
        self.tokens = self._load_tokens()

    def _load_tokens(self) -> dict:
        """Load stored token hashes."""
        try:
            with open(self.tokens_file) as f:
                return json.load(f)
        except FileNotFoundError:
            return {}

    def validate_token(self, token: str) -> Optional[dict]:
        """
        Validate API token.

        Args:
            token: API token to validate

        Returns:
            User data if valid, None otherwise
        """
        # Hash provided token
        token_hash = hashlib.sha256(token.encode()).hexdigest()

        # Check if hash exists
        if token_hash not in self.tokens:
            return None

        token_data = self.tokens[token_hash]

        # Check expiry
        expiry = datetime.fromisoformat(token_data["expiry"])
        if datetime.now() > expiry:
            return None

        return {
            "user_id": token_data["user_id"],
            "permissions": token_data.get("permissions", [])
        }

    def revoke_token(self, token: str):
        """Revoke API token."""
        token_hash = hashlib.sha256(token.encode()).hexdigest()
        if token_hash in self.tokens:
            del self.tokens[token_hash]
            self._save_tokens()

    def _save_tokens(self):
        """Persist tokens to disk."""
        with open(self.tokens_file, 'w') as f:
            json.dump(self.tokens, f, indent=2)

FastAPI middleware for token authentication:

from fastapi import FastAPI, HTTPException, Security
from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
from Aetherra.security.token_validator import TokenValidator

app = FastAPI()
security = HTTPBearer()
token_validator = TokenValidator()

async def verify_token(credentials: HTTPAuthorizationCredentials = Security(security)):
    """Verify API token from Authorization header."""

    token = credentials.credentials
    user_data = token_validator.validate_token(token)

    if not user_data:
        raise HTTPException(
            status_code=401,
            detail="Invalid or expired token"
        )

    return user_data

# Protected endpoint
@app.get("/api/protected")
async def protected_endpoint(user_data = Security(verify_token)):
    return {
        "message": "Access granted",
        "user_id": user_data["user_id"]
    }

Role-Based Access Control (RBAC)

Permission system:

# Aetherra/security/rbac.py
from enum import Enum
from typing import Set

class Permission(Enum):
    """System permissions."""
    READ_MEMORY = "read:memory"
    WRITE_MEMORY = "write:memory"
    EXECUTE_PLUGINS = "execute:plugins"
    MANAGE_PLUGINS = "manage:plugins"
    READ_CONFIG = "read:config"
    WRITE_CONFIG = "write:config"
    ADMIN = "admin"

class Role:
    """User role with permissions."""

    def __init__(self, name: str, permissions: Set[Permission]):
        self.name = name
        self.permissions = permissions

    def has_permission(self, permission: Permission) -> bool:
        """Check if role has permission."""
        return permission in self.permissions or Permission.ADMIN in self.permissions

# Predefined roles
ROLES = {
    "admin": Role("admin", {Permission.ADMIN}),
    "operator": Role("operator", {
        Permission.READ_MEMORY,
        Permission.WRITE_MEMORY,
        Permission.EXECUTE_PLUGINS,
        Permission.READ_CONFIG
    }),
    "viewer": Role("viewer", {
        Permission.READ_MEMORY,
        Permission.READ_CONFIG
    })
}

def check_permission(user_role: str, required_permission: Permission) -> bool:
    """Check if user role has required permission."""
    role = ROLES.get(user_role)
    if not role:
        return False
    return role.has_permission(required_permission)

Permission decorator:

from functools import wraps
from fastapi import HTTPException

def require_permission(permission: Permission):
    """Decorator to enforce permissions."""

    def decorator(func):
        @wraps(func)
        async def wrapper(*args, user_data=None, **kwargs):
            if not user_data:
                raise HTTPException(status_code=401, detail="Not authenticated")

            user_role = user_data.get("role", "viewer")
            if not check_permission(user_role, permission):
                raise HTTPException(
                    status_code=403,
                    detail=f"Permission denied: {permission.value}"
                )

            return await func(*args, user_data=user_data, **kwargs)
        return wrapper
    return decorator

# Usage
@app.post("/api/memory/store")
@require_permission(Permission.WRITE_MEMORY)
async def store_memory(event: dict, user_data = Security(verify_token)):
    # Store memory event
    pass

Network Security

TLS/SSL Configuration

nginx reverse proxy with TLS:

# /etc/nginx/sites-available/aetherra

upstream aetherra_hub {
    server localhost:3001;
}

# Redirect HTTP to HTTPS
server {
    listen 80;
    server_name aetherra.example.com;
    return 301 https://$server_name$request_uri;
}

# HTTPS server
server {
    listen 443 ssl http2;
    server_name aetherra.example.com;

    # TLS configuration
    ssl_certificate /etc/letsencrypt/live/aetherra.example.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/aetherra.example.com/privkey.pem;
    ssl_protocols TLSv1.3 TLSv1.2;
    ssl_ciphers HIGH:!aNULL:!MD5;
    ssl_prefer_server_ciphers on;

    # Security headers
    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-XSS-Protection "1; mode=block" always;
    add_header Referrer-Policy "no-referrer-when-downgrade" always;
    add_header Content-Security-Policy "default-src 'self'" always;

    # Rate limiting
    limit_req_zone $binary_remote_addr zone=api_limit:10m rate=10r/s;
    limit_req zone=api_limit burst=20 nodelay;

    # Proxy configuration
    location /api/ {
        proxy_pass http://aetherra_hub;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;

        # Timeouts
        proxy_connect_timeout 60s;
        proxy_send_timeout 60s;
        proxy_read_timeout 60s;
    }

    # WebSocket support
    location /ws/ {
        proxy_pass http://aetherra_hub;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_set_header Host $host;
    }
}

Firewall Configuration

iptables rules:

#!/bin/bash
# Aetherra firewall configuration

# Flush existing rules
iptables -F
iptables -X
iptables -t nat -F
iptables -t nat -X

# Default policies (DROP all)
iptables -P INPUT DROP
iptables -P FORWARD DROP
iptables -P OUTPUT ACCEPT

# Allow loopback
iptables -A INPUT -i lo -j ACCEPT

# Allow established connections
iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT

# Allow SSH (limit connection rate)
iptables -A INPUT -p tcp --dport 22 -m state --state NEW -m recent --set
iptables -A INPUT -p tcp --dport 22 -m state --state NEW -m recent --update --seconds 60 --hitcount 4 -j DROP
iptables -A INPUT -p tcp --dport 22 -j ACCEPT

# Allow HTTP/HTTPS
iptables -A INPUT -p tcp --dport 80 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j ACCEPT

# Rate limiting (prevent DDoS)
iptables -A INPUT -p tcp --dport 443 -m state --state NEW -m limit --limit 50/minute --limit-burst 100 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -m state --state NEW -j DROP

# Drop invalid packets
iptables -A INPUT -m state --state INVALID -j DROP

# Log dropped packets (for analysis)
iptables -A INPUT -j LOG --log-prefix "iptables-dropped: " --log-level 4

# Save rules
iptables-save > /etc/iptables/rules.v4

IP Allowlist/Blocklist

# Aetherra/security/ip_filter.py
from typing import Set
import ipaddress

class IPFilter:
    """Filter requests by IP address."""

    def __init__(self):
        self.allowlist: Set[str] = set()
        self.blocklist: Set[str] = set()
        self.allowlist_networks = []
        self.blocklist_networks = []

    def add_to_allowlist(self, ip_or_network: str):
        """Add IP or network to allowlist."""
        try:
            network = ipaddress.ip_network(ip_or_network, strict=False)
            self.allowlist_networks.append(network)
        except ValueError:
            self.allowlist.add(ip_or_network)

    def add_to_blocklist(self, ip_or_network: str):
        """Add IP or network to blocklist."""
        try:
            network = ipaddress.ip_network(ip_or_network, strict=False)
            self.blocklist_networks.append(network)
        except ValueError:
            self.blocklist.add(ip_or_network)

    def is_allowed(self, ip_address: str) -> bool:
        """Check if IP is allowed."""
        # Check blocklist first
        if ip_address in self.blocklist:
            return False

        ip = ipaddress.ip_address(ip_address)
        for network in self.blocklist_networks:
            if ip in network:
                return False

        # If allowlist is empty, allow all (not in blocklist)
        if not self.allowlist and not self.allowlist_networks:
            return True

        # Check allowlist
        if ip_address in self.allowlist:
            return True

        for network in self.allowlist_networks:
            if ip in network:
                return True

        return False

# FastAPI middleware
from fastapi import Request, HTTPException
from starlette.middleware.base import BaseHTTPMiddleware

class IPFilterMiddleware(BaseHTTPMiddleware):
    def __init__(self, app, ip_filter: IPFilter):
        super().__init__(app)
        self.ip_filter = ip_filter

    async def dispatch(self, request: Request, call_next):
        client_ip = request.client.host

        if not self.ip_filter.is_allowed(client_ip):
            raise HTTPException(status_code=403, detail="IP address blocked")

        response = await call_next(request)
        return response

Audit Logging

Structured Audit Logs

# Aetherra/security/audit_logger.py
import json
import logging
from datetime import datetime
from typing import Optional

class AuditLogger:
    """Security audit logging."""

    def __init__(self, log_path: str = "logs/audit.log"):
        self.logger = logging.getLogger("aetherra.audit")
        handler = logging.FileHandler(log_path)
        handler.setFormatter(logging.Formatter('%(message)s'))
        self.logger.addHandler(handler)
        self.logger.setLevel(logging.INFO)

    def log_event(self, event_type: str, user_id: str, action: str,
                  resource: str, result: str, details: Optional[dict] = None):
        """Log security audit event."""

        audit_entry = {
            "timestamp": datetime.utcnow().isoformat() + "Z",
            "event_type": event_type,
            "user_id": user_id,
            "action": action,
            "resource": resource,
            "result": result,  # success | failure | denied
            "ip_address": details.get("ip_address") if details else None,
            "user_agent": details.get("user_agent") if details else None,
            "details": details or {}
        }

        self.logger.info(json.dumps(audit_entry))

    def log_authentication(self, user_id: str, success: bool, ip_address: str):
        """Log authentication attempt."""
        self.log_event(
            event_type="authentication",
            user_id=user_id,
            action="login",
            resource="auth",
            result="success" if success else "failure",
            details={"ip_address": ip_address}
        )

    def log_authorization(self, user_id: str, action: str, resource: str, granted: bool):
        """Log authorization check."""
        self.log_event(
            event_type="authorization",
            user_id=user_id,
            action=action,
            resource=resource,
            result="success" if granted else "denied"
        )

    def log_data_access(self, user_id: str, resource_type: str, resource_id: str, action: str):
        """Log data access."""
        self.log_event(
            event_type="data_access",
            user_id=user_id,
            action=action,
            resource=f"{resource_type}/{resource_id}",
            result="success"
        )

    def log_configuration_change(self, user_id: str, config_key: str, old_value: str, new_value: str):
        """Log configuration change."""
        self.log_event(
            event_type="configuration_change",
            user_id=user_id,
            action="update",
            resource=f"config/{config_key}",
            result="success",
            details={
                "old_value": old_value,
                "new_value": new_value
            }
        )

# Usage
audit_logger = AuditLogger()

@app.post("/api/memory/store")
async def store_memory(event: dict, user_data = Security(verify_token)):
    audit_logger.log_data_access(
        user_id=user_data["user_id"],
        resource_type="memory",
        resource_id=event.get("id"),
        action="create"
    )
    # Store memory event
    pass

Log Analysis and SIEM Integration

Parse audit logs for anomalies:

# tools/analyze_audit_logs.py
import json
from collections import Counter, defaultdict
from datetime import datetime, timedelta

def analyze_audit_logs(log_file: str, hours: int = 24):
    """Analyze audit logs for security anomalies."""

    cutoff_time = datetime.utcnow() - timedelta(hours=hours)

    failed_logins = defaultdict(int)
    unauthorized_access = []
    config_changes = []

    with open(log_file) as f:
        for line in f:
            try:
                entry = json.loads(line)
                timestamp = datetime.fromisoformat(entry["timestamp"].rstrip('Z'))

                if timestamp < cutoff_time:
                    continue

                # Track failed logins
                if entry["event_type"] == "authentication" and entry["result"] == "failure":
                    failed_logins[entry["user_id"]] += 1

                # Track unauthorized access attempts
                if entry["event_type"] == "authorization" and entry["result"] == "denied":
                    unauthorized_access.append(entry)

                # Track configuration changes
                if entry["event_type"] == "configuration_change":
                    config_changes.append(entry)

            except json.JSONDecodeError:
                continue

    # Generate report
    print(f"=== Audit Log Analysis (last {hours} hours) ===\n")

    print("Failed Login Attempts:")
    for user_id, count in sorted(failed_logins.items(), key=lambda x: x[1], reverse=True):
        print(f"  {user_id}: {count} failures")
        if count > 5:
            print(f"    ⚠ WARNING: Possible brute force attack")

    print(f"\nUnauthorized Access Attempts: {len(unauthorized_access)}")
    for entry in unauthorized_access[:10]:
        print(f"  {entry['user_id']} -> {entry['resource']}")

    print(f"\nConfiguration Changes: {len(config_changes)}")
    for entry in config_changes[:10]:
        print(f"  {entry['user_id']} changed {entry['resource']}")

if __name__ == "__main__":
    analyze_audit_logs("logs/audit.log", hours=24)

Intrusion Detection

Anomaly Detection

# Aetherra/security/anomaly_detector.py
from collections import deque
from datetime import datetime, timedelta
from typing import Dict, Deque

class AnomalyDetector:
    """Detect anomalous behavior patterns."""

    def __init__(self):
        self.request_history: Dict[str, Deque] = {}
        self.failed_auth_history: Dict[str, Deque] = {}

    def track_request(self, user_id: str, endpoint: str):
        """Track API request."""
        if user_id not in self.request_history:
            self.request_history[user_id] = deque(maxlen=1000)

        self.request_history[user_id].append({
            "endpoint": endpoint,
            "timestamp": datetime.now()
        })

    def detect_rate_anomaly(self, user_id: str, threshold: int = 100) -> bool:
        """Detect unusually high request rate."""
        if user_id not in self.request_history:
            return False

        recent_requests = [
            r for r in self.request_history[user_id]
            if r["timestamp"] > datetime.now() - timedelta(minutes=1)
        ]

        return len(recent_requests) > threshold

    def detect_auth_anomaly(self, user_id: str, ip_address: str) -> bool:
        """Detect suspicious authentication patterns."""
        if user_id not in self.failed_auth_history:
            self.failed_auth_history[user_id] = deque(maxlen=100)

        self.failed_auth_history[user_id].append({
            "ip_address": ip_address,
            "timestamp": datetime.now()
        })

        # Check for multiple failed attempts from different IPs
        recent_failures = [
            f for f in self.failed_auth_history[user_id]
            if f["timestamp"] > datetime.now() - timedelta(minutes=5)
        ]

        unique_ips = len(set(f["ip_address"] for f in recent_failures))

        # Anomaly: 5+ failures from 3+ different IPs in 5 minutes
        return len(recent_failures) >= 5 and unique_ips >= 3

    def detect_privilege_escalation(self, user_id: str, requested_permission: str) -> bool:
        """Detect potential privilege escalation attempts."""
        # Check if user suddenly requests admin-level permissions
        # after previously only using read permissions

        if user_id not in self.request_history:
            return False

        recent_requests = list(self.request_history[user_id])[-50:]

        # Simple heuristic: admin action after only read actions
        admin_endpoints = ["/api/config", "/api/admin", "/api/users"]
        read_endpoints = ["/api/memory/query", "/api/health", "/api/status"]

        recent_admin = any(r["endpoint"] in admin_endpoints for r in recent_requests[-5:])
        mostly_read = sum(1 for r in recent_requests[:-5] if r["endpoint"] in read_endpoints) > 30

        return recent_admin and mostly_read

Fail2ban Integration

fail2ban configuration for Aetherra:

# /etc/fail2ban/jail.d/aetherra.conf
[aetherra-auth]
enabled = true
port = http,https
filter = aetherra-auth
logpath = /var/log/aetherra/audit.log
maxretry = 5
findtime = 600
bantime = 3600
action = iptables-multiport[name=aetherra, port="http,https", protocol=tcp]

fail2ban filter:

# /etc/fail2ban/filter.d/aetherra-auth.conf
[Definition]
failregex = .*"event_type": "authentication".*"result": "failure".*"ip_address": "<HOST>"
ignoreregex =

Vulnerability Management

Security Scanning

OWASP Dependency Check:

#!/bin/bash
# Scan dependencies for known vulnerabilities

# Install dependency-check
wget https://github.com/jeremylong/DependencyCheck/releases/download/v7.4.1/dependency-check-7.4.1-release.zip
unzip dependency-check-*.zip

# Run scan
./dependency-check/bin/dependency-check.sh \
    --project "Aetherra OS" \
    --scan . \
    --exclude ".git/**" \
    --format HTML \
    --out reports/dependency-check-report.html

# Check exit code
if [ $? -ne 0 ]; then
    echo "Vulnerabilities found! Review report: reports/dependency-check-report.html"
    exit 1
fi

Bandit security linter:

# Install bandit
pip install bandit

# Scan Python code for security issues
bandit -r Aetherra/ -f json -o reports/bandit-report.json

# Check specific issue types
bandit -r Aetherra/ -ll  # Low and above severity

Safety check for Python packages:

# Install safety
pip install safety

# Check installed packages
safety check --json > reports/safety-report.json

# Check requirements.txt
safety check -r requirements.txt

Penetration Testing

Basic API security tests:

#!/bin/bash
# Basic API security testing

API_URL="https://aetherra.example.com/api"

# Test 1: Authentication bypass
echo "Testing authentication bypass..."
curl -X GET "$API_URL/memory/query" -o /dev/null -w "%{http_code}\n"
# Expected: 401 Unauthorized

# Test 2: SQL injection
echo "Testing SQL injection..."
curl -X GET "$API_URL/memory/query?filter=1' OR '1'='1" -o /dev/null -w "%{http_code}\n"
# Expected: 400 Bad Request or proper escaping

# Test 3: XSS
echo "Testing XSS..."
curl -X POST "$API_URL/memory/store" \
    -H "Content-Type: application/json" \
    -d '{"data": "<script>alert(1)</script>"}' \
    -o /dev/null -w "%{http_code}\n"
# Expected: Sanitized input

# Test 4: Rate limiting
echo "Testing rate limiting..."
for i in {1..150}; do
    curl -s "$API_URL/health" -o /dev/null -w "%{http_code}\n"
done | sort | uniq -c
# Expected: 429 Too Many Requests after threshold

Incident Response

Incident Response Plan

IR Runbook Template:

# Security Incident Response Runbook

## Incident Classification

### Severity Levels
- **P0 (Critical)**: Data breach, system compromise, service takedown
- **P1 (High)**: Unauthorized access, privilege escalation, DDoS
- **P2 (Medium)**: Failed intrusion attempt, minor vulnerability
- **P3 (Low)**: Security policy violation, suspicious activity

## Response Procedures

### Phase 1: Detection (0-15 minutes)
1. Receive alert from monitoring system
2. Verify incident is genuine (not false positive)
3. Classify severity level
4. Notify incident response team

### Phase 2: Containment (15-60 minutes)
1. Isolate affected systems
2. Block malicious IP addresses
3. Revoke compromised credentials
4. Preserve evidence (logs, memory dumps)

### Phase 3: Eradication (1-4 hours)
1. Identify root cause
2. Remove malicious code/access
3. Patch vulnerabilities
4. Update security controls

### Phase 4: Recovery (4-24 hours)
1. Restore from clean backups
2. Verify system integrity
3. Gradually restore services
4. Monitor for reinfection

### Phase 5: Post-Incident (1-7 days)
1. Conduct post-mortem analysis
2. Document lessons learned
3. Update security procedures
4. Notify affected parties (if required)

## Contact Information

- **Security Lead**: security@example.com, +1-555-0100
- **On-Call Engineer**: oncall@example.com, +1-555-0101
- **Legal**: legal@example.com, +1-555-0102

Automated Incident Response

# Aetherra/security/incident_response.py
from enum import Enum
from datetime import datetime
import logging

class IncidentSeverity(Enum):
    P0_CRITICAL = 0
    P1_HIGH = 1
    P2_MEDIUM = 2
    P3_LOW = 3

class IncidentResponder:
    """Automated incident response actions."""

    def __init__(self):
        self.logger = logging.getLogger("incident_response")

    def respond_to_incident(self, incident_type: str, severity: IncidentSeverity, details: dict):
        """Execute automated response actions."""

        self.logger.critical(f"INCIDENT DETECTED: {incident_type} (Severity: {severity.name})")

        # Automatic containment actions
        if severity in [IncidentSeverity.P0_CRITICAL, IncidentSeverity.P1_HIGH]:
            self._execute_containment(incident_type, details)

        # Notification
        self._send_notifications(incident_type, severity, details)

        # Log to SIEM
        self._log_to_siem(incident_type, severity, details)

    def _execute_containment(self, incident_type: str, details: dict):
        """Execute containment actions."""

        if incident_type == "brute_force":
            # Block offending IP
            ip_address = details.get("ip_address")
            if ip_address:
                self._block_ip(ip_address)

        elif incident_type == "unauthorized_access":
            # Revoke user session
            user_id = details.get("user_id")
            if user_id:
                self._revoke_user_sessions(user_id)

        elif incident_type == "data_exfiltration":
            # Rate limit user
            user_id = details.get("user_id")
            if user_id:
                self._apply_rate_limit(user_id, strict=True)

    def _block_ip(self, ip_address: str):
        """Block IP address."""
        self.logger.warning(f"Blocking IP: {ip_address}")
        # Add to IP blocklist
        from Aetherra.security.ip_filter import ip_filter
        ip_filter.add_to_blocklist(ip_address)

    def _revoke_user_sessions(self, user_id: str):
        """Revoke all sessions for user."""
        self.logger.warning(f"Revoking sessions for user: {user_id}")
        # Implementation: invalidate JWT tokens, clear session cache

    def _apply_rate_limit(self, user_id: str, strict: bool = False):
        """Apply strict rate limiting."""
        limit = 10 if strict else 60
        self.logger.warning(f"Applying rate limit to user {user_id}: {limit} req/min")

    def _send_notifications(self, incident_type: str, severity: IncidentSeverity, details: dict):
        """Send incident notifications."""
        # Email, Slack, PagerDuty, etc.
        pass

    def _log_to_siem(self, incident_type: str, severity: IncidentSeverity, details: dict):
        """Log incident to SIEM system."""
        incident_log = {
            "timestamp": datetime.utcnow().isoformat(),
            "type": incident_type,
            "severity": severity.name,
            "details": details
        }
        self.logger.info(f"SIEM: {incident_log}")

Compliance and Standards

GDPR Compliance

Data subject rights implementation:

# Aetherra/security/gdpr_compliance.py

class GDPRCompliance:
    """GDPR compliance utilities."""

    def export_user_data(self, user_id: str) -> dict:
        """Export all user data (Right to Data Portability)."""
        user_data = {
            "user_id": user_id,
            "memory_events": self._get_user_memory_events(user_id),
            "audit_logs": self._get_user_audit_logs(user_id),
            "preferences": self._get_user_preferences(user_id)
        }
        return user_data

    def delete_user_data(self, user_id: str):
        """Delete all user data (Right to be Forgotten)."""
        # Delete from memory system
        self._delete_user_memory(user_id)

        # Anonymize audit logs (keep for compliance)
        self._anonymize_audit_logs(user_id)

        # Delete user account
        self._delete_user_account(user_id)

    def generate_privacy_report(self, user_id: str) -> str:
        """Generate privacy report for user."""
        report = f"""
        Privacy Report for User: {user_id}
        Generated: {datetime.utcnow().isoformat()}

        Data Processing Activities:
        - Memory Events: {self._count_user_memory_events(user_id)}
        - API Requests: {self._count_user_api_requests(user_id)}
        - Audit Log Entries: {self._count_user_audit_logs(user_id)}

        Data Retention:
        - Memory Events: 90 days
        - Audit Logs: 365 days
        - Backups: 30 days

        Third-Party Processors: None

        Your Rights:
        - Right to Access
        - Right to Rectification
        - Right to Erasure
        - Right to Data Portability
        - Right to Object
        """
        return report

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Aetherra Security Operations Guide

Purpose and Scope

Security Architecture

Defense-in-Depth Model

Quick Start

Minimal Security Setup (15 Minutes)

Authentication and Authorization

API Token Authentication

Role-Based Access Control (RBAC)

Network Security

TLS/SSL Configuration

Firewall Configuration

IP Allowlist/Blocklist

Audit Logging

Structured Audit Logs

Log Analysis and SIEM Integration

Intrusion Detection

Anomaly Detection

Fail2ban Integration

Vulnerability Management

Security Scanning

Penetration Testing

Incident Response

Incident Response Plan

Automated Incident Response

Compliance and Standards

GDPR Compliance

Related Documentation

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SECURITY_OPERATIONS_GUIDE.md

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Aetherra Security Operations Guide

Purpose and Scope

Security Architecture

Defense-in-Depth Model

Quick Start

Minimal Security Setup (15 Minutes)

Authentication and Authorization

API Token Authentication

Role-Based Access Control (RBAC)

Network Security

TLS/SSL Configuration

Firewall Configuration

IP Allowlist/Blocklist

Audit Logging

Structured Audit Logs

Log Analysis and SIEM Integration

Intrusion Detection

Anomaly Detection

Fail2ban Integration

Vulnerability Management

Security Scanning

Penetration Testing

Incident Response

Incident Response Plan

Automated Incident Response

Compliance and Standards

GDPR Compliance

Related Documentation