Beware: Hackers Are Hiding Malware Inside Signed Productivity Apps

When a Signed App Is Not Safe: The TamperedChef Malware Campaign If you’ve ever downloaded a productivity app like Zoom, Slack, or Microsoft Teams from a search ad or a third‑party site, you may have been one click away from infection. A recently reported campaign called TamperedChef is using a clever trick: the malware is digitally signed with valid certificates, so it looks legitimate to both users and security software. ...

May 23, 2026 · 4 min · BriefArc Desk