Tamper resistance is the ability of a device to defend against a threat. The device is often a cryptographic module, but this characteristic could also be important for noncryptographic devices that need to protect design intellectual property or provide evidence of the device integrity for trust or warranty purposes. A device that is designed to have relatively more tamper resistance will require a higher level of attack skills, added work effort, and more sophisticated equipment to perform the tamper actions. Added tamper resistance reduces the probability of compromising the device without damaging the device or triggering a tamper event that will erase keys or disable the device. Often a goal of tamper resistance is to cause the attacker to inflict clear visible evidence on the device, so that the operator and/or manufacturer is aware of the tamper actions and can take appropriate precautions and actions.