The Counter Threat Unit™ (CTU) research team analyzes security threats to help organizations protect their systems. Based on observations in July and August, CTU™...
Oct 22, 2025Ravie LakshmananCyber Espionage / Vulnerability
Threat actors with ties to China exploited the ToolShell security vulnerability in Microsoft SharePoint to breach a telecommunications...
Introduction
Cyberthreats are constantly evolving, and email phishing is no exception. Threat actors keep coming up with new methods to bypass security filters and circumvent...
previousMy next class:Reverse-Engineering Malware: Advanced Code AnalysisOnline | Greenwich Mean TimeOct 27th - Oct 31st 2025
Many Online Services and Websites...
Cybercriminals are abusing a widespread lack of authentication in the customer service platform Zendesk to flood targeted email inboxes with menacing messages that come...
In a significant crackdown against online cybercriminals, German authorities have successfully dismantled a network of fraudulent cryptocurrency investment sites that has targeted millions of...
Full Transcript
Brett Johnson, AKA Gollumfun (twitter.com/GOllumfun) was involved with the websites Counterfeit Library and Shadow Crew. He tells his story...
Counter Threat Unit™ (CTU) researchers are investigating multiple incidents in an ongoing campaign targeting users of the WhatsApp messaging platform. The campaign, which started...
Malware campaigns distributing the RondoDox botnet have expanded their targeting focus to exploit more than 50 vulnerabilities across over 30 vendors.
The activity, described as...
