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git.stella-ops.org/docs/notifications/security/webhook-ack-hardening.md

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# Webhook Acknowledgment Hardening
This document describes the security measures for webhook acknowledgment validation.
## Overview
Webhook acknowledgment hardening ensures that webhook deliveries are properly verified and acknowledged.
## Security Measures
- HMAC signature verification for all webhook payloads
- Timeout handling for slow webhook endpoints
- Retry logic with exponential backoff
- Dead letter queue for failed deliveries
## Configuration
Webhook endpoints must be configured with:
- Secret key for HMAC signing
- Signature header name
- Timeout duration
- Maximum retry attempts