Latest cybersecurity reporting from selected sources.

Encryption protects content, not context Mischief-makers can guess the subjects being discussed with LLMs using a side-channel attack, according to Microsoft researchers. They told The Register that models from some providers, including Anthropic, AWS, DeepSeek, and Google, haven't been fixed, putting both personal users and enterprise communications at risk.…

Google Expects Tactics to Spread; Global Targets and Other Services at RiskRussian nation-state hackers are using phishing attacks to target Ukrainian users of the chat app Signal, say security researchers. Rather than circumventing Signal's end-to-end encryption via a cryptographic attack, attackers use malicious prompting to prod victims into exposing messages.

Exploits come with caveats, but Google says no fixes as user security should do the heavy lifting here Novel weaknesses in Google Workspace have been exposed by researchers, with exploits potentially leading to ransomware attacks, data exfiltration, and password decryption.…

A senior research scientist at Google has devised new CPU attacks to exploit a vulnerability dubbed Downfall that affects multiple Intel microprocessor families and allows stealing passwords, encryption keys, and private data like emails, messages, or banking info from users that share the same computer. [...]

Researchers find that the encryption of a user's 2FA secrets are stripped after transportation to the cloud.

Google is bringing end-to-end encryption to Google Authenticator cloud backups after researchers warned users against synchronizing 2FA codes with their Google accounts. [...]