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Re:Got called to a professor’s office after a complaint his ... by yencabulator on Wednesday July 26, 2023 @12:59PM (#36880940)
There was a time on some UNIXes where you could just write to other people's ttys, no write/wall needed, just echo >/dev/...

Making write/wall sgid, and restricting tty write access to that group, was a significant security upgrade back in the day.

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