Tampering can refer to many forms of
sabotage but the term is often used to mean intentional modification of products in a way that would make them harmful to the consumer. This threat has prompted manufacturers to make products that are either
difficult to modify or at least difficult to modify without warning the consumer that the product has been
tampered with. Since the person making the modification is typically long gone by the time the crime is discovered, many of these cases are never solved.