ALL POSTS A week in security (January 19 – January 25) Malwarebytes Labs January 26, 2026 0 Comments A list of topics we covered in the week of January 19 to January 25 of 2026 Spammers abuse Zendesk to flood inboxes with legitimate-looking emails, but why? Pieter Arntz January 23, 2026 0 Comments Spammers are abusing Zendesk to flood inboxes with emails from trusted brands. There’s no phishing or malware—just noise. Fake LastPass maintenance emails target users Pieter Arntz January 22, 2026 0 Comments LastPass is warning users about phishing emails that pressure users to back up their vaults within 24 hours. Under Armour ransomware breach: data of 72 million customers appears on the dark web Pieter Arntz January 22, 2026 0 Comments Customer data allegedly stolen during a ransomware attack on sportswear giant Under Armour is now circulating on the dark web. Can you use too many LOLBins to drop some RATs? Pieter Arntz January 21, 2026 0 Comments An attempt to drop two RATs on a system used an uncanny assortment of legitimate Windows tools. Malicious Google Calendar invites could expose private data Pieter Arntz January 21, 2026 0 Comments Researchers showed how prompt injection hidden in a calendar invite can bypass privacy controls and turn an AI assistant into a data-leaking accomplice. Fake extension crashes browsers to trick users into infecting themselves Pieter Arntz January 20, 2026 0 Comments A fake ad blocker crashes your browser, then uses ClickFix tricks to make you run the malware yourself. Google will pay $8.25m to settle child data-tracking allegations Danny Bradbury January 20, 2026 0 Comments Google-owned AdMob allegedly collected kids' data for ads without parental consent—including IP addresses, usage data, and exact locations. Firefox joins Chrome and Edge as sleeper extensions spy on users Pieter Arntz January 19, 2026 0 Comments Researchers found more sleeper browser extensions that spy on users and install backdoors, this time targeting Firefox users as well. Previous 1 … 18 19 20 21 22 … 617 Next Contributors Threat Center Podcast Glossary Scams
