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iPhone forced me to change 4 digit passcode to 8 digits

2 days ago my iPhone forced me to change my 4 digit passcode to an 8 digit passcode. When I go into settings to change it back I am only given the options of an 8 digit numerical or an alphanumeric code. I don’t understand why this is happening. No one else around me has had this happen on their phone.

Posted on Mar 30, 2022 2:51 PM

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Question marked as Top-ranking reply

Posted on Mar 30, 2022 3:12 PM

While this is the first I’d heard of it, I can only surmise it’s a Security enhancement.


W/o going into statistical probability, 8 digits are more secure than 4 with all else being equal.


Human Factors:


It’s not too difficult for a skilled fraudster to observe and memorize your entry of a 4-numeric digit passcode.


Doing so w/ 8-digits is MUCH more difficult.


If you use an all-numeric passcode, the “added workload” imposed by entering 4 more digits is negligible.



1 reply
Question marked as Top-ranking reply

Mar 30, 2022 3:12 PM in response to Isa693

While this is the first I’d heard of it, I can only surmise it’s a Security enhancement.


W/o going into statistical probability, 8 digits are more secure than 4 with all else being equal.


Human Factors:


It’s not too difficult for a skilled fraudster to observe and memorize your entry of a 4-numeric digit passcode.


Doing so w/ 8-digits is MUCH more difficult.


If you use an all-numeric passcode, the “added workload” imposed by entering 4 more digits is negligible.



iPhone forced me to change 4 digit passcode to 8 digits

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