GoKawiilDigital car keys carry unique risks despite blocking relay attacks
Digital car keys, which rely on UWB or NFC to confirm phone proximity, avoid the relay attacks that plague traditional key fobs. However, they introduce new vulnerabilities: a stolen or dead phone could theoretically lock owners out or grant access to thieves, though automakers build in safeguards like remote lockdown features and reserve battery power for NFC access lasting up to five hours after a phone dies.