What would happen if you used a longer passcode on your iPhone?
What if you use a longer passcode? Here’s how long the FBI would need:
seven-digit passcodes will take up to 9.2 days, and on average 4.6 days, to crack
eight-digit passcodes will take up to three months, and on average 46 days, to crack
nine-digit passcodes will take up to 2.5 years, and on average 1.2 years, to crack
10-digit passcodes will take up to 25 years, and on average 12.6 years, to crack
11-digit passcodes will take up to 253 years, and on average 127 years, to crack
12-digit passcodes will take up to 2,536 years, and on average 1,268 years, to crack
13-digit passcodes will take up to 25,367 years, and on average 12,683 years, to crack
article quote author = Mac Slavo.
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Personally I can't see how they can come up with these figures. Who know how many systems/GHz of processing power they can throw at the task. I'm sure the FBI wouldn't say.
But the reason for having strong passwords shouldn't have anything to do with the FBI, but preventing minor levels of hacking by criminals.
It also doesn't differentiate on these number of digits, being all numeric or alphabetic or containing special characters and or Upper/Lower case. As a mixed case, alphanumeric passcode would be much longer or the single case alpha or numeric passcode much quicker.
Not to mention who you actually are and why they might even be interested in you.