CVE-2026-56155 is an actively exploited AD FS flaw exposing token-signing keys — why patching alone isn't enough, and today's CISA deadline.

Source: [HackerNoon](https://hackernoon.com/cve-2026-56155-the-actively-exploited-ad-fs-flaw-that-hands-over-your-identity-keys?source=rss)

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