A secure attention key (SAK), special attention key, or secure attention sequence (SAS) is a special key, key combination or sequence to be pressed on a computer keyboard before a login screen which must, to the user, be completely trustworthy. The operating system kernel, which interacts directly with the hardware, or init system is able to detect whether the secure attention key has been pressed.
A secure attention key (SAK), special attention key, or secure attention sequence (SAS) is a special key, key combination or sequence to be pressed on a computer keyboard before a login screen which must, to the user, be completely trustworthy. The operating system kernel, which interacts directly with the hardware, or init system is able to detect whether the secure attention key has been pressed.
Source: Wikipedia "Secure attention key" · CC BY-SA 4.0
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