# Secure Boot vulnerability went unnoticed for ten years

A security researcher discovered a critical flaw in Microsoft's Secure Boot that has existed for a decade, allowing attackers to bypass protections. The vulnerability affects a wide range of Windows devices, potentially enabling bootkits and persistent malware. It matters because Secure Boot is a fundamental security feature designed to prevent unauthorized code from running during system startup.

**Importance:** 4/5

## Sources

### Technology
- [Ars Technica](https://arstechnica.com/security/2026/07/microsoft-secure-boot-has-been-broken-for-most-of-its-existence/) — Tue, 14 Jul 2026 22:20:48 +0000