Ghosted by a cybercriminal

Welcome to this week's edition of the Threat Source newsletter. Talos recently published research into how threat actors are increasingly teaming up across the attack chain. Each group handles a slice of the operation, passing the breach along like a relay baton. It's a concerning trend -- one th...

CISA and Partners Release Joint Advisory on Understanding Ransomware Threat Actors: LockBit

Today, CISA, the Federal Bureau of Investigation FBI, the Multi-State Information Sharing and Analysis Center MS-ISAC, and international partners released Understanding Ransomware Threat Actors: LockBit, a joint Cybersecurity Advisory CSA to help organizations understand and defend against threat...

Hackers Begin Exploiting Second Log4j Vulnerability as a Third Flaw Emerges

Web infrastructure company Cloudflare on Wednesday revealed that threat actors are actively attempting to exploit a second bug disclosed in the widely used Log4j logging utility, making it imperative that customers move quickly to install the latest version as a barrage of attacks continues to...

Smoking Out a DARKSIDE Affiliate’s Supply Chain Software Compromise

Mandiant observed DARKSIDE affiliate UNC2465 accessing at least one victim through a Trojanized software installer downloaded from a legitimate website. While this victim organization detected the intrusion, engaged Mandiant for incident response, and avoided ransomware, others may be at risk. As...