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 …

Chinese authorities are using a new tool to hack seized phones and extract data

Security researchers say Chinese authorities are using a new type of malware to extract data from seized phones, allowing them to obtain text messages — including from chat apps such as Signal — images, location histories, audio recordings, contacts, and 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 …

Preventing Zero-Click AI Threats: Insights from EchoLeak

EchoLeak (CVE-2025-32711) is a newly identified vulnerability in Microsoft 365 Copilot, made more nefarious by its zero-click nature, meaning it requires no user interaction to succeed. It demonstrates how helpful systems can open the door to entirely new forms of 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 …

‘Pig butchering’ scams have stolen billions from people around the world.

At the beginning of 2025, panic about fraud and human trafficking erupted on Chinese social media. It started when a Chinese actor called Wang Xing was tricked into travelling to Thailand for an audition, where he was abducted by criminals 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 …