scholar

  • 2 Posts
  • 41 Comments
Joined 1 year ago
cake
Cake day: July 3rd, 2023

help-circle




  • I hate how YouTube seems to intentionally show salacious ads if you opt out of ad personalization. I get a ton of Temu spam despite not purchasing anything from that app or even having it on my phone, and the ads themselves usually feature scantily-clad women that takes up 70% of the screen. I’ve made a habit of just opening up the comments section and keeping them open the entire duration of the video. It really feels like YouTube/Google/Alphabet is saying “oh, you don’t want people around you to think you’re a perv? Let us collect more data about you so you can save face in public when you use our app at the gym or at work.”




  • In a nutshell, a backdoor was intentionally planted by a malicious actor in xz Utils, an open-source data compression utility widely used in Linux and other Unix-like operating systems. This discovery was made by Andres Freund, a developer and engineer working on Microsoft’s PostgreSQL offerings. He was troubleshooting performance problems on a Debian system. Specifically, SSH logins were consuming excessive CPU cycles and generating errors with Valgrind, a memory debugging tool. Through sheer luck and Freund’s careful eye, he eventually discovered that these issues were the result of updates made to xz Utils. Upon closer inspection, he found that updates to xz Utils were the result of a maliciously inserted backdoor. The backdoor, present in xz Utils versions 5.6.0 and 5.6.1, manipulated the sshd executable, allowing anyone with a predetermined encryption key to upload and execute arbitrary code on affected devices.