SECURITYQUIET
28 days ago · Global
Microsoft fixes bug behind ‘Defender Antivirus is turned off’ alerts
SIGNALSMONITORSECURITY
What's happening
SignalsMonitor is following this as a security story. BleepingComputer is the outlet attached so far. The reports are tied to Global. The first report grouped here was at 18 Sept 2026, 12:16 UTC. The headline in use is “Microsoft fixes bug behind ‘Defender Antivirus is turned off’ alerts”. This note is SignalsMonitor's own briefing, not the publisher's article.
What we know
Microsoft has resolved a known issue that causes incorrect alerts warning that Defender Antivirus was turned off after installing recent updates. [...
BleepingComputerRead at BleepingComputer
Story timeline
Reports grouped into this story, earliest first. Exact repeats from the same outlet are collapsed.
- First reported by BleepingComputer
Microsoft fixes bug behind ‘Defender Antivirus is turned off’ alerts
Reported by 1 outlet
- BleepingComputer