# Microsoft Defender Driver Flaw Allows Deleting Security Software at Boot

A flaw in a legitimate Microsoft Defender driver can be weaponized to delete or disable other security software during the Windows boot process. This would allow attackers to neutralize endpoint protections before the operating system fully loads, leaving systems exposed. Microsoft has been alerted to the issue, which underscores a serious risk to enterprise defenses.

**Importance:** 4/5

## Sources

### Security
- [The Hacker News](https://thehackernews.com/2026/08/microsoft-defenders-own-driver-can-be.html) — Fri, 21 Aug 2026 21:22:10 +0530