According to research by Daniel Amitay, the following are the ten most common passcodes for an iPhone.
1234, 0000, 2580, 1111, 5555, 5683, 0852, 2222, 1212, 1998,
Thankfully, my iPhone’s password isn’t even close to these. Besides, I would avoid 3333, 4444, 6666, 7777, 8888, 9999.
Definitely some interesting research for sure. I would recommend reading up on this.