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Multiple Russia-aligned threat actors have been observed targeting individuals of interest via the privacy-focused messaging app Signal to gain unauthorized access to their accounts. "The most novel and widely used technique underpinning Russian-aligned attempts to compromise Signal accounts is the abuse of the app's legitimate 'linked devices' feature that enables Signal to be used on multiple devices concurrently," the Google Threat Intelligence Group (GTIG) said in a report. In the attacks spotted by the tech giant's threat intelligence teams, the threat actors, including one it's tracking as UNC5792, have resorted to malicious QR codes that, when scanned, will link a victim's account to an actor-controlled Signal instance. As a result, future messages get delivered synchronously to both the victim and the threat actor in real-time, thereby granting threat actors a persistent way to eavesdrop on the victim's conversations. Google said UAC-...

Meta has officially begun to  roll out  support for end-to-end encryption (E2EE) in Messenger for personal calls and one-to-one personal messages by default in what it called the "most significant milestone yet." "This isn't a routine security update: we rebuilt the app from the ground up, in close consultation with privacy and safety experts," Loredana Crisan, vice president of Messenger at Meta,  said  in a post shared on X (formerly Twitter). CEO Mark Zuckerberg, who announced a "privacy-focused vision for social networking" back in 2019,  said  the update comes "after years of work" redesigning the platform. It's worth noting that E2EE for group messaging in Messenger is still in the testing phase. Encrypted chats were first introduced as an opt-in feature called "secret conversations" in Messenger in 2016. Meta's Instagram also has  support for E2EE  for messages and calls but it's "only available in some ...

The problem is simple: all breaches start with initial access, and initial access comes down to two primary attack vectors – credentials and devices. This is not news; every report you can find on the threat landscape depicts the same picture.  The solution is more complex. For this article, we'll focus on the device threat vector. The risk they pose is significant, which is why device management tools like Mobile Device Management (MDM) and Endpoint Detection and Response (EDR) are essential components of an organization's security infrastructure. However, relying solely on these tools to manage device risk actually creates a false sense of security. Instead of the blunt tools of device management, organizations are looking for solutions that deliver device trust . Device trust provides a comprehensive, risk-based approach to device security enforcement, closing the large gaps left behind by traditional device management solutions. Here are 5 of those limitations and how to ov...