#unicode
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ASCII smuggling: invisible Unicode migrates from AI attacks to spam
A trick devised two years ago to sneak instructions into chatbots is now being used en masse by spammers to slip past email filters.
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Executable Emoji: an x86 Program Made Entirely of Smileys
The author of the retro blog MartyPC discovered that the UTF-8 bytes of most emoji add up to valid 8088 machine code — and wrote a program in “emoji assembly” that prints “HELLO.”
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How str.lower() Became a Python Vulnerability
A routine call to lowercase a string broke conformance with the IDNA 2003 standard and turned into a CVE. The culprit is the version of Unicode the interpreter works with.