#funnyfacts — Public Fediverse posts
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#CybersecurityAwarenessMonth #FunnyFacts
In former times, RAM was quite limited, so there was a bit to switch the CPU between high and low addresses. It's called "A20 Gate".
The problem: where do you put that extra bit?
Intel decided it's a good idea to (originally) put it on an unused bit on the Intel 8042 keyboard controller.
Guess how the first Xbox was hacked?
https://xboxdevwiki.net/Exploits#A20M.23_hack
:blobcat_thisisfine:
(more details below ⬇️)