Identifying and alerting on data loss using Cloudflare Workers

What this post added

This post introduces the use of Cloudflare Workers to detect and prevent data loss by inspecting the content of HTTP responses for sensitive 'canary' data. It demonstrates how Workers can be configured to block responses containing leaked sensitive information, return a static 'Blocked' response, and trigger external alerts (e.g., PagerDuty) via `event.waitUntil()` to notify of potential data breaches. It also touches upon rate-limiting responses as a secondary measure.