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Cake day: November 22nd, 2025

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  • One could cool down system memory before power is cut to a point where it retains in-use plaintext encryption keys. One basically renders the otherwise volatile system memory temporarily nonvolatile. And if one manages to keep the temperatures low for long enough, one could swap those memory modules into one’s own computer/motherboard and print the keys. As you can imagine, the resources needed for this type of attack makes the proposition of it infeasible. Then again, if your adversary is a nation state… Fingers crossed?





  • This about the IFS variable was eye opening! Thank you SO much! This is exactly what I was trying to understand, namely, how on earth the for-loop is smart enough to understand how to count when I haven’t specified a numerical interval (as I do in for instance C when I practice that). This just solved it all. Thanks! Now I also understand why my code gave me excessive outputs when I changed ls into ls -l. The IFS variable made the for-loop count every single blank space!!! :D


  • Reading this part of the Bash manual for the third time today, I think I finally understood it better, thanks to this part in particular:

    […]execute commands once for each word in the resultant list […]

    In other words, whatever follows in is half expected to result in a list of words (items), each for which command is then executed. Beyond that, I guess I’d have to simply look at the logic behind for-expressions.

    Thanks!