Windows Defender
September 2026 Patch Tuesday: Record patch count, 2 zero-days, and a SigRed successor
September 2026 Patch Tuesday is here, with Microsoft delivering another record-breaking number of patches, including those for two vulnerabilities that have been exploited as …
BlueHammer: Windows zero-day exploit leaked
A buggy but functional proof-of-concept (PoC) exploit for an unpatched Windows local privilege escalation vulnerability dubbed BlueHammer has been published on GitHub by …
Automatically mitigate ProxyLogon, detect IoCs associated with SolarWinds attackers’ activities
Microsoft has updated its Defender Antivirus to mitigate the ProxyLogon flaw on vulnerable Exchange Servers automatically, while the Cybersecurity and Infrastructure Security …
Windows 10 users get protection against PUAs
Windows 10 users who upgrade to v2004 will finally be able to switch on a longstanding Windows Defender feature that protects users against potentially unwanted applications …
Microsoft drops emergency Internet Explorer fix for actively exploited zero-day
Microsoft has unexpectedly released out-of-band security updates to fix vulnerabilities in Internet Explorer and Microsoft Defender. The IE zero-day bug is deemed …
Windows Defender can now run inside a sandbox
Microsoft has made it possible for Windows Defender Antivirus to be run within a sandbox, a restrictive environment that separates the AV’s processes from those of the …
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