Malwarebytes Labs – The Security Blog From Malwarebytes | Malwarebytes Labs News More PayPal emails hijacked to deliver tech support scams April 30, 2026 – We investigate how scammers are abusing PayPal’s systems to push victims into calling fake support numbers. How to Hackers stole hundreds of thousands of Roblox accounts: Here’s what to do AI Researchers built a chatbot that only knows the world before 1931 Bugs Microsoft won’t patch PhantomRPC: Feature or bug? Product Scam-checking just got a lot easier: Malwarebytes is now in Claude PODCAST Podcast Our bi-weekly podcast of the latest security headlines and in-depth interviews with guests VIEW EPISODES AI AI If the robots are taking over, you'll want to know about it. READ MORE Data Breaches Data breaches Keep on top of the latest data breach news. READ MORE Threat Intelligence Threat Intel Stay up to date with the latest research and threat intelligence reports. READ MORE More PayPal emails hijacked to deliver tech support scams Pieter Arntz April 30, 2026 0 Comments We investigate how scammers are abusing PayPal’s systems to push victims into calling fake support numbers. Hackers stole hundreds of thousands of Roblox accounts: Here’s what to do Pieter Arntz April 30, 2026 0 Comments Hackers used fake Roblox “game enhancements” to steal login details from hundreds of thousands of players, then sold the accounts for profit. Researchers built a chatbot that only knows the world before 1931 Danny Bradbury April 29, 2026 0 Comments What happens when you strip the internet out of AI? Researchers built a chatbot that only knows the world before 1931. Microsoft won’t patch PhantomRPC: Feature or bug? Pieter Arntz April 29, 2026 0 Comments A researcher has detailed five ways to exploit PhantomRPC, which Microsoft rates “moderate” and does not plan to fix. Scam-checking just got a lot easier: Malwarebytes is now in Claude Malwarebytes Labs April 29, 2026 0 Comments We're in Claude! Now everyone can use our threat intel to check suspicious links, phone numbers, or email addresses. We're committed to helping you spot scams. Fake CAPTCHA scam turns a quick click into a costly phone bill Pieter Arntz April 28, 2026 0 Comments Scammers are using fake CAPTCHA pages to rack up international SMS charges on victims’ phone bills, and then take a cut. Chinese engineer stole US military and NASA software for years Danny Bradbury April 28, 2026 0 Comments He created Gmail accounts, impersonated real US researchers, and convinced NASA, the military, and universities to hand over sensitive code. A week in security (April 20 – April 26) Malwarebytes Labs April 27, 2026 0 Comments A list of topics we covered in the week of April 20 to April 26 of 2026 Medical data of 500,000 UK volunteers listed for sale on Alibaba Pieter Arntz April 24, 2026 0 Comments Despite strict access controls, medical data from half a million UK Biobank volunteers ended up listed for sale on Alibaba. 1 2 3 … 619 Next Contributors Threat Center Podcast Glossary Scams
