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Security & Privacy

The most popular blog posts about security & privacy on Hacker News. 8,772 posts.

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7113

MitM Attack against KeePass 2’s Update Check

This post is about a Man in the Middle (MitM) vulnerability in KeePass 2’s automatic update check. KeePass – the free and open source password manager – uses, in all versions up to the current 2.33, unencrypted HTTP requests to check for new software versions. An attacker can abuse this automatic update check – if…

7119

What is gVisor?

It has been a really long time since I last wrote something here as life happens, things get busier, etc etc. I am now trying to get back into writing things down and here we go! So, imagine a tool or a service that allows you to run some arbitrary code via a shell. Either through a ssh or more commonly, via a web…

7121

Reproducible builds for Debian: a big step forward

This is the second article in the “reproducible builds” series. Previously: Improvements in testing and building: GitLab CI and reproducible builds. In the previous article, Improvements in testing and building: GitLab CI and reproducible builds, we discussed reproducible builds and our...

7126

A New Development for Coverity and Heartbleed

Byte swapping does not necessarily imply the data comes from an external source. For example, when writing graphics code, you sometimes need to do byte swapping if you’re converting between 24-bit RGB and BGR image formats (Windows’ GDI famously uses BGR so this is one place where you need to do such conversions)…

7133

Twitter Bots Use Likes, RTs for Intimidation

I awoke this morning to find my account on Twitter ( @briankrebs ) had attracted almost 12,000 new followers overnight. Then I noticed I’d gained almost as many followers as the number of re-tweets (RTs) earned for a tweet I published on Tuesday . The tweet stated how every time I tweet something related to Russian…

7138

No, RSA Is Not Broken

I have been seeing this paper by cryptographer Peter Schnorr making the rounds: “Fast Factoring Integers by SVP Algorithms.” It describes a new factoring method, and its abstract ends with the provocative sentence: “This destroys the RSA cryptosystem.” It does not. At best, it’s an improvement in factoring—and I’m not…

7140

CVE 2025 31200

Background On April 16, 2025, Apple released a patch for a bug in CoreAudio which they said was “Actively exploited in the wild.” This flew under the radar a bit. Epsilon’s blog has a great writeup of the other bug that was presumably exploited in this chain: a bug in RPAC. The only thing out there that I am aware of…