Jesus spring

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Jesus spring is a neologism used by computer hardware hackers to describe a component installed by manufacturers to discourage or detect unauthorized disassembly of a piece of equipment. The jesus spring is a trap installed in such a way that any naïve disassembly will trigger it. Common examples include a spring concealed beneath a panel, or a nut which falls into an irretrieveable position.

Deactivating or resetting a jesus spring necessarily requires specialist tools or techniques unlikely to be available to an unauthorized person. A triggered jesus spring can be used as evidence to deny warranty or liability claims.

The term itself comes from the oath often uttered when one is encountered.

This device should not be confused with a Jesus clip, although the source of their names is similar.