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Security & Privacy

The most popular blog posts about security & privacy on Hacker News. 8,773 posts.

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7803

Two types of privacy

"Privacy" can mean different things in different contexts. Tracking-reduction and tracking-evasion represent different goals with some conflict and overlap.

7810

Two-Factor Authentication and the Police State

In Britain - and many other countries - the police can legally force you to divulge your passwords. Whether it's to an encrypted file, a social network, or your email account, the state can legally rifle through your most intimate thoughts and (potentially) pose as you online. As we've recently seen, this can be done…

7821

Weaponizing Dependabot: Pwn Request at its finest

Your trusty Dependabot (and other GitHub bots) might be an unwitting accomplice. Through "Confused Deputy" attacks, they can be tricked into merging malicious code. This doesn't stop here. It can escalate to full command injection via crafted branch names and even bypass branch protection rules. Plus, we disclose two…

7822

Enable ARMv9 Memory Tagging Extension (MTE) on Pixel 8

The Pixel 8 hardware ( Tensor G3 ) supports the ARM Memory Tagging Extension (MTE) , and software support is available both in Android userspace and the Linux kernel. This feature is a powerful defense against linear buffer overflows and many types of use-after-free flaws. I’m extremely happy to see this hardware…

7827

Strengthening the Microsoft Edge Sandbox

In a recent post, we outlined the layered strategy that the Microsoft Edge security team employs to protect you from vulnerabilities that could be used to compromise your device or personal data. In particular, we showed how Microsoft Edge is leveraging technologies like Code Integrity Guard (CIG) and Arbitrary Code…