passcode frequency
iOS developer Daniel Amitay today took an interesting look (via The Next Web) at iPhone passcode trends as revealed by usage of his popular Big Brother Camera Security application.

In my last update to Big Brother Camera Security (Free), I added some code to record common user passcodes (completely anonymous, of course). Because Big Brother's passcode setup screen and lock screen are nearly identical to those of the actual iPhone passcode lock, I figured that the collected information would closely correlate with actual iPhone passcodes.

Perhaps unsurprisingly, the most popular passcode for the app was "1234", a choice made by about 4.3% of users. Other popular codes include ones with repeating numbers (such as "0000" and "1111") and patterns on the keypad (such as "2580" and "1212"). All told, Amitay discovered that 15% of the over 200,000 passcodes captured by his app were represented by just ten different passcodes.

The implication? A thief (or just a prankster) could safely try 10 different passcodes on your iPhone without initiating the data wipe. With a 15% success rate, about 1 in 7 iPhones would easily unlock--even more if the intruder knows the users' years of birth, relationship status, etc.

Beyond the passcodes representing repetitive and patterned entries, Amitay found a higher-than-expected frequency of passcodes in the 1980-2000 range, suggesting that users are prone to using their birth years or years of other significant events in their lives as their passcodes.

Top Rated Comments

Doctor Q Avatar
188 months ago
I use a pseudo-random number generator to pick my passcodes and I change it once every 15 minutes, just to be super-secure. That's how I can be confident that nobody will see my top-secret data, such as the note saying "bring bread and milk on the way home".

Of course that means that once in a while my passcode is 1234 or 0000! :eek:
Score: 5 Votes (Like | Disagree)
ThE.MeSsEnGeR Avatar
188 months ago
..... there are only 9999 possible lockscreen combinations .....
actually it's 10,000 possible combinations ;)
Score: 4 Votes (Like | Disagree)
Phil A. Avatar
188 months ago
Interesting as this is, I feel that collecting passcodes and sending them back to the developer (anonymised or not) is well out of order and may breach several Apple guidelines on data capture and use, not to mention data protection laws
Score: 4 Votes (Like | Disagree)
Phil A. Avatar
188 months ago
4263=hand


:p

:D :D
You owe me a keyboard to replace the one I've just spurted coffee all over! ;)
Score: 3 Votes (Like | Disagree)
jive turkey Avatar
188 months ago
Ok, I can't help but failing to see how "relationship status" would be of any help in discovering a user's pass-code...:confused:

4263=hand


:p
Score: 3 Votes (Like | Disagree)
MacFan1701 Avatar
188 months ago
1234? That's the kind of thing an idiot has on his luggage!!!
Score: 3 Votes (Like | Disagree)

Popular Stories

ios 26 1 slide to stop

iOS 26.1 Brings Back 2007 Feature in New Way

Friday October 31, 2025 1:40 pm PDT by
The upcoming iOS 26.1 update includes a small but helpful change for iPhones, and it could prevent you from running late to something important. Specifically, when an alarm goes off in the Clock app, there is a new "slide to stop" control on the screen for turning off the alarm. On previous iOS 26 versions, there is simply a large "stop" button, which could be accidentally tapped. The new ...
Apple Logo Spotlight

Report: Apple to Launch These New Products in 2026

Sunday November 2, 2025 5:34 am PST by
Apple is planning to launch at least 15 new products in 2026, according to Bloomberg's Mark Gurman. Gurman outlined what to expect from Apple in 2026 in the latest edition of his "Power On" newsletter. He said the company is heading "into one of its most pivotal years in recent memory," with the rollout of major new Apple Intelligence features, intense regulatory pressure on the App Store,...
Apple Intelligence General Feature 2

New Version of Siri to 'Lean' on Google Gemini

Sunday November 2, 2025 6:06 am PST by
In his "Power On" newsletter, Bloomberg's Mark Gurman today provided an update on the status of Apple Intelligence and the plans for it in 2026. Apple is still planning to roll out its revamped version of Siri around March of next year. The release should be accompanied by the release of a new smart home display product with speaker-base and wall-mount options. A new Apple TV and HomePod...
M5 MacBook Pro

Waiting for New Macs? Apple Just Shared Bad News

Friday October 31, 2025 7:32 am PDT by
Apple has just given a strong indication that it will not be releasing any additional new Macs for the remainder of the year. Apple's CFO Kevan Parekh dropped the hint during the company's earnings call on Thursday:On Mac, keep in mind, we expect to face a very difficult compare against the M4 MacBook Pro, Mac mini, and iMac launches in the year-ago quarter.Parekh essentially gave a heads up ...
Apple Foldable Thumb

iPhone Fold: Launch, Pricing, and What to Expect From Apple's Foldable

Friday October 31, 2025 8:52 am PDT by
Apple is expected to launch a new foldable iPhone next year, based on multiple rumors and credible sources. The long-awaited device has been rumored for years now, but signs increasingly suggest that 2026 could indeed be the year that Apple releases its first foldable device. Below, we've collated an updated set of key details that have been leaked about Apple's foldable iPhone so far. Ove...
HomePod mini and Apple TV

New Apple TV and HomePod Mini Likely Launching Soon

Sunday November 2, 2025 5:49 am PST by
A new Apple TV and HomePod mini could launch as soon as this month, Bloomberg's Mark Gurman today suggested. In today's "Power On" newsletter, Gurman said that Apple retail stores are planning an overnight refresh on the evening of November 11, where changes will be made after closing, such as refreshing displays and placing new products for the following day. The timing of the overnight...
Coffee Burgundy and Purple iPhone 18 Pro Mock 1

Leaker Outlines Potential New Colors for iPhone 18 Pro

Friday October 31, 2025 8:28 am PDT by
Apple's iPhone 18 Pro models could be available in new rich and warm color option, according to a known leaker. The Weibo user known as "Instant Digital" today suggested that next-year's iPhone 18 Pro models will be available in at least one of the following color options: Coffee, purple, and burgundy. The iPhone XR, iPhone 11, iPhone 12, iPhone 14, and iPhone 14 Pro were all available in ...
iPhone 17 Pro Cosmic Orange

8 Reasons to Wait for Next Year's iPhone 18 Pro

Thursday October 30, 2025 4:42 am PDT by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...
iOS 26

6 New Things Your iPhone Can Do in iOS 26.1

Wednesday October 29, 2025 4:22 am PDT by
Apple is about to drop iOS 26.1, the first major point release since iOS 26 was rolled out in September, and there are at least six notable changes and improvements to look forward to. We've rounded them up below. Apple has already provided developers and public beta testers with the release candidate version of iOS 26.1, which means Apple will likely roll out the update to all compatible...