Could anyone in the world hack into your phone and steal your wallet from the comfort of their homes like they can with Bitcoin?
Most Android phones stop receiving security updates after two years or less.
Most Android phones stop receiving security updates after two years or less.
Can someone hack an exchange or your bank account login/password or your bank or worse setup for an account under your name no phone needed?
There's plenty of malware that looks for unsecured Bitcoin wallets on machines it infects, or masquerades as legitimate wallet software.
If you have root, you just need to wait until the user unlocks their wallet, or if you're lucky, their wallets don't have passwords.