The most common 4-digit PIN numbers

Helmut Neukirchen, 3. November 2025

I found a nice visualisation of the most common 4-digit PIN numbers, based on 3.4 million PIN numbers from several data breaches: The 20 most common numbers make up 27% of the commonly used PIN numbers.

Rule of thumb: what comes into your mind as easy to remember (e.g. birth dates) is what also comes into the mind of others -- and might therefore be tried by someone guessing your PIN code.

categories Cybersecurity