Tamper

Tamper can mean:

• A device used for tamping, commonly to prepare ground coffee beans to make espresso.
• A ballast tamper, a machine that tamps railroad track ballast, invented by Sir John Scott.
• In nuclear weapon design, either a shell surrounding the fission core and keeping the nuclear material assembled during the explosion for longer time, raising yield, or the outermost layer of a "secondary" thermonuclear component.
• A tool with a long handle and a flat metal head, used in a "stomping" type motion to flatten ground, gravel or other type of materials, for gardening or landscaping tasks. See also Spud bar.
• To make unauthorised alterations to something. Products can be made tamper-evident to protect against tampering.
• Tamper detection: the automatic determination by a module that an attempt has been made to compromise the physical security.
• Tamper evidence: the external indication that an attempt has been made to compromise the physical security of a module.
• Tamper response: the automatic action taken by a module when a tamper attempt has been detected.
• Tamper tape: tape or sticker often logoed placed over a seem or screw to show physical security has been breached when tape is broken on the module.