Meaning
Physical and logical protection systems identify unauthorized attempts to access, alter, or compromise secure hardware, software, or cargo shipments. In high-value supply chains, tamper detection mechanisms trigger automatic security alerts, invalidate data keys, or permanently log physical seal breakages to reveal security breaches. This capability ensures that distributors and manufacturers can reject compromised stock before it is accepted into the inventory or sold to customers.
Physical Verification
High-security seals and specialized packaging provide visible evidence if a shipping container has been opened or altered in transit. These devices include serialized wire locks, color-changing tapes, and breaking glass tubes that cannot be reassembled once compromised. Logistics contracts require warehouse staff to inspect these physical markers at every handover point to ensure that the shipment remains intact and uncontaminated.
If the inspection reveals any sign of tampering, the cargo is rejected at the dock, and a claim is filed with the transit insurer.
Logical Response
Cryptographic modules use internal sensors to detect physical breaches and respond by wiping sensitive data immediately. When a sensor detects changes in voltage, temperature, or physical case opening, it triggers an automated zeroization of all stored security keys. This response protects proprietary software and customer credentials from being extracted by bad actors who gain physical access to the hardware.
Contractual Consequence
Supply agreements define the liability and return procedures that apply when a security breach is detected. If the receiving warehouse flags a tamper detection event, the entire shipment is rejected and quarantined at the carrier’s expense. The contract specifies who bears the cost of disposal and replacement, protecting the distributor from the financial risks associated with cargo interference.
