You backed up your seed phrase. Set a passphrase. Did everything right. Then someone got your device. Maybe it was a theft. Maybe you left it somewhere. Maybe someone with the right tools and enough motivation decided your wallet was worth cracking open. This is where the Keystone 3 Pro's PCI-grade anti-tamper system becomes the last thing standing between them and your keys. The moment unauthorized access is detected, the circuitry wipes everything stored in the secure elements. No keys. Nothing to extract. And it doesn't need you to be there for it to work. Even if your main battery is dead, a dedicated button battery keeps the protection running for up to 2 years. In normal use, that protection window stretches past 3 years. Your wallet is built to lose itself before it gives anything up.