What does "kill switch" mean?

A security measure used to switch off a device in an emergency.

What is a synonym for "kill switch"?

Common synonyms include: turnoff.

noun, verb

noun, verb ·Rare ·Advanced level

Noun

1
A security measure used to switch off a device in an emergency.
"The company developed a ‘kill switch’ that would remotely encrypt its computers and devices if an office was raided by authorities."

Verb

1
To switch off using a kill switch.
"Digitization supercharges financialization. It lets car-makers offer subprime auto-loans to desperate, poor people and then killswitch their cars if they miss a payment."

"The company developed a ‘kill switch’ that would remotely encrypt its computers and devices if an office was raided by authorities."