Why a PIN is different
A PIN is usually 4 to 6 digits, so it has few combinations. A 4-digit PIN has only 10,000 possibilities and a 6-digit one only 1,000,000, so a common value is cracked in an instant.
That's why, above all, the key is to choose it uncommonly and at random.
PINs to avoid
These are the first things an attacker tries.
- Repeated or sequential digits like 1234, 0000, 1111
- Personal info like a birth date or the last digits of a phone number
- Common combinations like 1004 (angel) or 7777
- Reusing the same PIN on both your card and phone
A safer PIN
A little care makes it much stronger.
- Set 6 digits or more when possible
- Choose random digits with no pattern
- Use a different PIN for each device and purpose
- Cover your hand when entering it so no one can peek over your shoulder
Don't rely on a PIN alone
On top of a PIN, turn on biometrics, a shorter auto-lock time, and remote lock or wipe, and your device stays safe even if you lose it.