Do not use biometric unlocking

Fingerprints and facial recognition are not secure methods for unlocking your device. They are like passwords that you can never change. Data leaks or malware could cause this sensitive information to be lost and put you at a disadvantage. The police can also use your fingerprints to unlock your device. There have already been court rulings on this in Germany and the USA. If you have an iPhone, you can temporarily lock Face ID and your fingerprint by pressing a special key combination. For Android, lockdown mode is available on some devices, allowing you to quickly disable these functions in an emergency.