标签：#cyber

GHES Key Rotation, Bug Bounty Program Refocus, AI Agent Permission Fatigue Today's Highlights This week's top security news features critical action for GitHub Enterprise Server users with a signing key rotation due to an ongoing investigation. We also cover GitHub's strategic refocusing of its bug bounty program for higher quality submissions and an interactive look at AI agent permission fatigue. Investigation update: GitHub Enterprise Server signing key rotation (GitHub Blog) Source: https://github.blog/security/investigating-unauthorized-access-to-githubs-internal-repositories/ This alert details a critical security update for GitHub Enterprise Server (GHES) customers, urging immediate action to rotate signing keys. The blog post indicates an investigation into unauthorized access to GitHub's internal repositories, which has necessitated this widespread security measure. While specific details of the breach or vulnerability are not fully disclosed, the requirement for a signing key rotation points to a potential compromise of cryptographic keys, which are fundamental to authentication and supply chain integrity. Such incidents could lead to unauthorized code signing, repository tampering, or other severe supply chain attacks, underscoring the importance of robust secrets management and incident response protocols. The advisory emphasizes a proactive stance for GHES administrators to protect their environments by following the provided guidance. This incident highlights the pervasive risk of supply chain attacks and the critical role of secure key management in enterprise environments. It reminds organizations that even trusted platforms like GitHub are targets and necessitates vigilant monitoring and swift action in response to security advisories. The prompt action from GitHub, though implying a significant security event, also showcases their commitment to transparency and securing their ecosystem by guiding customers through the necessary remediation steps to

A new hacking campaign is trying to trick Signal users to give up their secret recovery key, which can be used to access online backups containing past messages.

One leading privacy lawmaker said it was time to "start treating the adtech industry as a national security threat."

Customer data from more than 350 hotels around the world may have been accessed as part of realistic reservation-hijacking scams.

The third-party website exposed passports, selfies, and the location data of applicants who submitted their documents as part of the U.K. visa application process. Instead of fixing the issue, the website sent attorneys.

Cybercriminals used the Glassworm botnet to infect open source software projects with malware, and in turn hack the developers and companies that use that software.

The 2025 Internet Crime Report was published a few weeks ago, but I only just saw it. Lots of interesting statistics. Press release . News articles .

Crazy story : Until this past weekend, a contractor for the Cybersecurity & Infrastructure Security Agency (CISA) maintained a public GitHub repository that exposed credentials to several highly privileged AWS GovCloud accounts and a large number of internal CISA systems. Security experts said the public archive included files detailing how CISA builds, tests and deploys software internally, and that it represents one of the most egregious government data leaks in recent history. News article .

Good report : Executive Summary: Let’s say you wanted to make sure that your AI is secure. Can you just maximize the security and privacy benchmark and call it a day? Nope, because benchmarks don’t actually work for measuring AI capabilities (even when they are NOT emergent systemic properties like security). So let’s take a step back: how do you measure security in the first place? Good question. Over the last 30 years, security engineering for software evolved from black box penetration testing, through whitebox code analysis and architectural risk analysis to de facto process-driven standards like the Building Security In Maturity Model (BSIMM). Software had a very deep impact on business operations, and it appears that AI is going to have an even deeper impact. Will a software security-like measurement move work for AI? Probably. In the meantime we can make real progress in AI security by cleaning up our WHAT piles and managing risk by identifying and applying good assurance processes. (Spoiler alert: no matter what we do, we still don’t get a security meter for AI, so we need to be extra vigilant about security.)...

They also locked students out of Canvas and warned the company to negotiate with them by May 12.