Insecure distance bounding in digital key systems allows for relay attacks and signal spoofing. Establishing a cryptographically secure and physically accurate proximity check prevents vehicle theft and ensures user safety.

Systematic errors and timing offsets between anchors degrade distance estimation precision. Correcting these discrepancies ensures reliable spatial awareness in complex environments.

Standard wireless proximity detection is susceptible to relay attacks and signal spoofing. Securing the verification process prevents fraudulent unlocking and theft.