New Malware Hides Inside Legitimate-Looking Productivity Apps – Here’s How to Stay Safe

New Malware Hides Inside Legitimate-Looking Productivity Apps – Here’s How to Stay Safe A new campaign dubbed TamperedChef is making the rounds, using digitally signed productivity apps to drop credential stealers and remote access trojans (RATs) onto victims’ devices. What makes it difficult to spot is that these apps appear to be signed with legitimate certificates, which can trick both users and some automated security checks. Here’s what’s happening and how you can avoid being a target. ...

May 22, 2026 · 3 min · BriefArc Desk

TamperedChef Malware: How Hackers Hide in Signed Productivity Apps – and How to Stay Safe

TamperedChef Malware: How Hackers Hide in Signed Productivity Apps – and How to Stay Safe Another wave of malware is making the rounds, and this one has a trick that makes it harder to spot. Security researchers have identified a campaign called TamperedChef that delivers dangerous software—info-stealers and remote access trojans (RATs)—by hiding inside productivity applications that appear to be legitimately signed. If you’ve ever downloaded a copy of Microsoft Teams, Zoom, or Slack from anywhere other than the official source, this is worth a close look. ...

May 22, 2026 · 4 min · BriefArc Desk

How to Stay Safe from TamperedChef Malware Hiding in Productivity Apps

How to Stay Safe from TamperedChef Malware Hiding in Productivity Apps If you’ve ever downloaded an installer for Microsoft Teams, Slack, or Zoom from a third-party site, you may have bypassed the official source and gotten something else. A recent malware campaign called TamperedChef is doing exactly that: it uses signed installers of common productivity apps to sneak past security checks and deliver information stealers and remote access trojans (RATs). According to cybersecurity news reports from late May 2026, the campaign is active and targets remote workers and small business owners who rely on these tools. ...

May 22, 2026 · 4 min · BriefArc Desk

Malware That Hides in Signed Apps: How to Protect Yourself from TamperedChef

Malware That Hides in Signed Apps: How to Protect Yourself from TamperedChef If you download productivity software like Microsoft Teams, Office tools, or collaboration apps, you probably assume that if the file has a valid digital signature, it’s safe. A newly documented campaign called TamperedChef shows why that assumption can be dangerous. Attackers are using signed, but malicious, versions of popular apps to deliver information stealers and remote access trojans (RATs). Here’s what’s happening and what you can do about it. ...

May 22, 2026 · 4 min · BriefArc Desk

TamperedChef Malware Lurks Inside Signed Apps: What You Need to Know Now

TamperedChef Malware Lurks Inside Signed Apps: What You Need to Know Now A new wave of malware is making the rounds, and it’s doing something that might surprise you – hiding inside legitimate-looking, digitally signed copies of everyday productivity tools. Known as TamperedChef, this campaign has been delivering information stealers and remote access trojans (RATs) to unsuspecting users, primarily through apps like TeamViewer, Slack, and Microsoft Teams. Here’s what’s going on and how to keep your devices safe. ...

May 21, 2026 · 4 min · BriefArc Desk