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Category — Secure Messaging
Hackers Exploit Signal's Linked Devices Feature to Hijack Accounts via Malicious QR Codes

Hackers Exploit Signal's Linked Devices Feature to Hijack Accounts via Malicious QR Codes

Feb 19, 2025 Mobile Security / Cyber Espionage
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 Launches Default End-to-End Encryption for Chats and Calls on Messenger

Meta Launches Default End-to-End Encryption for Chats and Calls on Messenger

Dec 07, 2023 Encryption / Data Privacy
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 ...
Webinar: Learn How ASPM Transforms Application Security from Reactive to Proactive

Webinar: Learn How ASPM Transforms Application Security from Reactive to Proactive

Mar 07, 2025Software Security / AppSec
Are you tired of dealing with outdated security tools that never seem to give you the full picture? You're not alone. Many organizations struggle with piecing together scattered information, leaving your apps vulnerable to modern threats. That's why we're excited to introduce a smarter, unified approach: Application Security Posture Management (ASPM). ASPM brings together the best of both worlds by connecting your code insights with real-time runtime data. This means you get a clear, holistic view of your application's security. Instead of reacting to threats, ASPM helps you prevent them. Imagine reducing costly retrofits and emergency patches with a proactive, shift-left strategy—saving you time, money, and stress. Join Amir Kaushansky, Director of Product Management at Palo Alto Networks, as he walks you through how ASPM is changing the game. In this free webinar , you'll learn to: Close the Security Gaps: Understand why traditional AppSec tools fall short and how ASPM fills ...
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