> Phillipe Christodoulou wanted to check his bitcoin balance last month, so he searched the App Store on his iPhone for “Trezor,” the maker of a small hardware

> Phillipe Christodoulou wanted to check his bitcoin balance last month, so he searched the App Store on his iPhone for “Trezor,” the maker of a small hardware device he uses to store his cryptocurrency. Up popped the company’s padlock logo set against a bright green background. The app was rated close to five stars. He downloaded it and typed in his credentials. The whole point of a hardware wallet is to keep the credentials (private keys / seed phrase) locked up in there, and be safe from any malicious wallet app. Entering his credentials in the app destroyed the security of his hardware wallet.