Why random PINs matter
People pick PINs badly. Studies of leaked PIN data show that a handful of choices, such as 1234, 1111 and 0000, cover a large share of all four-digit PINs, and birth years are close behind.
This generator picks every digit at random and then rejects the patterns people and attackers favor. By default it skips triple repeats like 111, runs like 123 or 987, the most common PINs and four-digit years from 1950 to 2039.
How strong is a PIN?
A PIN is not strong on its own. A six-digit PIN has one million combinations, about 20 bits. It works because the device limits attempts: a phone locks or wipes after a few wrong tries, and a bank blocks a card. Choose six digits over four whenever you can, which makes guessing 100 times harder.
Frequently asked questions
Should I use a 4 or 6 digit PIN?
Six digits when the device allows it. Four digits give only 10,000 possibilities, six give a million.
Does skipping common patterns make PINs weaker?
No. Removing a few dozen predictable PINs barely reduces the total number of options, and it removes exactly the ones attackers try first.