Tampering

Tampering may refer to:
 * Tampering (crime), intentional modification of products in a way that would make them harmful to the consumer
 * Tampering with evidence, a form of criminal falsification
 * Witness tampering, an illegal attempt to coerce witnesses called to testify in a legal proceeding
 * Tampering (quality control), changing an industrial process in an attempt to improve output but having the opposite effect
 * Tampering (sport), the practice, often illegal, of professional sports teams negotiating with athletes of other teams
 * Tampering, in computer security, refers to data alteration
 * Tampering, or sabotage, is modifying a device to induce failure