Security Leftovers
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What is Hacking? and How do Hackers Hack? - Hack Ware News
Despite what Tony Stark says, the word hackers really stuck. Because it’s easy to say, it has a derisive impression to those who do the deed for selfish ends, while remaining technically trendy. Say hacker ten times compared to malicious cyber actor. Anyway, exactly what is hacking? How do hackers hack our social media, our bank accounts, our very lives?
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Recovering Passwords by Measuring Residual Heat
Researchers have used thermal cameras and ML guessing techniques to recover passwords from measuring the residual heat left by fingers on keyboards.
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Security updates for Wednesday
Security updates have been issued by Debian (mediawiki and twig), Oracle (expat, gnutls and nettle, and kernel), Red Hat (expat, kernel, and kpatch-patch), and Ubuntu (advancecomp and dotnet6).
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New AMD Zen 4 Processors reportedly run even faster with Linux Kernel Security Mitigations enabled
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AMD Ryzen 7000 CPUs are faster in Linux with Spectre V2 mitigations enabled
While most processors on the market are faster when disabling security tweaks/patches for certain bugs such as Spectre or Meltdown, it was recently discovered that the AMD Ryzen 7000 family does better when the Spectre V2 mitigations are enabled in the Linux kernel. The tests were first ran on the Ryzen 9 7950X, and then on the Ryzen 5 7600X.