Over 25% of phones can be cracked just by using one of the top 20 most used four digit PINs.

Cyber security expert Tarah Wheeler shared a list of the most popular PINs based on the findings of the folks at the SANS Institute, which is one of the largest cyber security organizations in the world. Some of the passcodes on the list aren’t surprising but there are a couple combinations that we didn’t expect to see.

Make sure your PIN didn’t make the list:

The top 20 most common mobile phone PINs are:

1234
1111
0000
1212
7777
1004
2000
4444
2222
6969
9999
3333
5555
6666
1122
1313
8888
4321
2001
1010

26% of all phones are cracked w these codes.

Change to short passphrase: Settings>Passcode (iOS)/Security (Android)

<3 stay safe!

— Tarah (@tarah) May 31, 2019

If your passcode made the list you should probably definitely change it ASAP. We’d recommend changing it to a 6-digit code too so that it’s even harder to crack with a brute force attack or just someone trying to lurk onto your iPhone.

To change your passcode, open the Settings app, go to Face ID & Passcode, scroll down to “Change Passcode.” You’ll have to enter your old passcode first and then choose another one.