Polygon Quietly Patched Security Flaws in Two Hard Forks Before Disclosing Them

Decrypt · 2026-08-30T22:31:04.000Z

The Austin and Kyoto hard forks, deployed quietly on the Bor and Heimdall clients before public disclosure, closed denial-of-service and consensus-hardening flaws that Polygon says were never exploited.

Source: Decrypt · · fact-reporting