In this Powerpoint presentation, the LANL Team discusses new approaches regarding tamper intrusion and detection. Definitions are presented, including:

tamper detection:  delayed (after the fact) detection of unauthorized access.

intrusion detection:  immediate (real-time) detection of unauthorized access.

lock:  a device to delay, complicate, and/or discourage unauthorized entry.

seal :  a tamper-indicating device (TID) designed to leave non-erasable, unambiguous evidence of unauthorized entry or tampering.  Unlike locks, seals are not necessarily meant to resist access, just record that it took place.

tag:  a device or intrinsic feature (“fingerprint”) for uniquely identifying an object or container.

defeating a seal:  opening a seal, then resealing (using the original seal or a counterfeit) without being detected.

attacking a seal:  undertaking a sequence  of actions designed to defeat it.