Ongoing SonicWall Secure Mobile Access (SMA) Exploitation Campaign using the OVERSTEP Backdoor

Google Threat Intelligence Group (GTIG) has identified an ongoing campaign by a suspected financially-motivated threat actor we track as UNC6148, targeting fully patched end-of-life SonicWall Secure Mobile Access (SMA) 100 series appliances. GTIG assesses with high confidence that UNC6148 is Read More …

Phish and Chips: China-Aligned Espionage Actors Ramp Up Taiwan Semiconductor Industry Targeting

Analyst note: Proofpoint uses the UNK_ designator to define clusters of activity that are still developing and have not been observed for long enough to receive a numerical TA designation. China-aligned threat actors have routinely targeted the semiconductor industry for Read More …

Global operation targets NoName057(16) pro-Russian cybercrime network

Between 14 and 17 July, a joint international operation, known as Eastwood and coordinated by Europol and Eurojust, targeted the cybercrime network NoName057(16). Law enforcement and judicial authorities from Czechia, France, Finland, Germany, Italy, Lithuania, Poland, Spain, Sweden, Switzerland, the Read More …

Amatera Stealer: Rebranded ACR Stealer With Improved Evasion, Sophistication

Proofpoint has been closely monitoring a stealer malware formerly known as ACR Stealer. In 2025, Proofpoint analysts identified a new, unnamed malware exhibiting significant code overlap, shared features, and capabilities with ACR Stealer. Further investigation revealed that ACR Stealer was Read More …

US Army soldier pleads guilty to hacking telcos and extortion

Former U.S. Army soldier Cameron John Wagenius pleaded guilty to hacking telecommunication companies and attempting to extort them by threatening to release stolen files, the Department of Justice announced on Tuesday. According to the DOJ, Wagenius, who went online with Read More …

Behind the Clouds: Attackers Targeting Governments in Southeast Asia Implement Novel Covert C2 Communication

Since late 2024, Unit 42 researchers have been tracking a cluster of suspicious activity as CL-STA-1020, targeting governmental entities in Southeast Asia. The threat actors behind this cluster of activity have been collecting sensitive information from government agencies, including information Read More …

Episource is notifying millions of people that their health data was stolen

Medical billing giant Episource is notifying millions of people across the United States that their personal and health information was stolen in a cyberattack earlier this year. The breach affects more than 5.4 million people, according to a listing with Read More …

Medicare data breach exposes personal details of 100,000 Americans

Healthcare data continues to be a top target for cybercriminals. In June alone, two major breaches compromised over 13 million patient records. Now, a newly confirmed Medicare data breach has affected more than 100,000 Americans. The Centers for Medicare & Read More …

Pro basketball player and 4 youths arrested in connection to ransomware crimes

Authorities in Europe have detained five people, including a former Russian professional basketball player, in connection with crime syndicates responsible for ransomware attacks. Until recently, one of the suspects, Daniil Kasatkin, played for MBA Moscow, a basketball team that’s part Read More …