Earlier this week, iOS developer Daniel Amitay published a report examining trends in passcodes chosen by users of his Big Brother Camera Security application. Amitay had anonymously collected over 200,000 passcodes used on his app and offered the data up as a proxy for actual iPhone passcode usage data based on the similarity of the input system style and functionality.

big brother camera security enter passcode
Amitay now reports that his application has been pulled from the App Store by Apple, although he is unsure at this time whether the removal was due to publication of the data or his admission of collecting it in the first place.

As of today at 4:58pm EST, Big Brother has been removed from the App Store. I'm certainly not happy about it, but considering the concerns a few people have expressed regarding the transfer of data from app to my server, it is understandable.

I think I should clarify exactly what data I was referring to, and how I was obtaining it. First, these passcodes are those that are input into Big Brother, not the actual iPhone lockscreen passcodes. Second, when the app sends this data to my server, it is literally sending only that number (e.g. "1234") and nothing else. I have no way of identifying any user or device whatsoever.

Amitay points to Apple's iTunes licensing agreement in support of his belief that he can collect such information, noting that he had planned on using the data collected to generate a list of common passcodes that would offer a warning of the codes being too obvious if they were chosen by a user. Consequently, it is unclear whether it is the collection itself or the publication of it that raised Apple's ire.

Amitay is currently reaching out to Apple to address the issue and have Big Brother Camera Security returned to the App Store.

Update: Amitay has updated his post to note that he has received a response from Apple relaying that his application was pulled for "surreptitiously harvesting user passwords". He has submitted an updated version of the application omitting the passcode collection capabilities and has appealed Apple's decision on the basis of the data being specific to the app, anonymized, and used for the purposes of improving the application.

Top Rated Comments

DanWithams Avatar
189 months ago
This developer has done nothing wrong, besides show the stupidity of users who use passcodes such as these. The unsolicited collection of data is something that happens everyday. Whenever you shop at WalMart, they record your credit card number and what you bought so they can refund you if need be. BUT they can easily bring up a purchase history and work out what your shopping style is, what you like to buy, what kinds of thing you buy. That's an invasion of privacy to a degree, but do you care?

The HUGE difference here is the developer can't tie up passcodes to individuals. What he wanted to do was look at the bigger picture. Apple published that they've sold x million iPads. OMG My iPad is in that statistics! That's MY data THEY HAVE NO RIGHT! See how stupid that is?

Information is taken from you all the time, whether or not you know it, and for most purposes it's used for seeing trends in large datasets, not to target you personally. Until your personal privacy is breached there's no need to cry. Apple are bending to consumer pressure because of a large volume of complaints they've probably received about the App.
Score: 8 Votes (Like | Disagree)
MacMan86 Avatar
189 months ago
What is the big advantage of Apple's curated App Store? Oh right, that Apple checks all apps for such things before making them available to the public.

As much as I don't approve of what this developer did, I also fear that there are thousands of apps out there, installed on millions of iOS devices, that send much more private data than just a passcode for the lock screen, unasked.

Apple gets 30% of the revenue, they could be a bit more thorough when testing apps...

That's just not realistically possible. For a start, you'd need to packet sniff all wi-fi packets and trawl through the data looking for something that looked like a 4 digit code in this case. Moreover, the minute Apple started doing this, any developer with malicious intent would immediately switch to sending all data over SSL/TLS. When the data is encrypted, the app could be sending anything and there would be no way to know.

Apple are doing the right thing - their API's heavily limit the damage a rogue developer can do but to try to go any further would just be a waste of everybody's time.
Score: 5 Votes (Like | Disagree)
42streetsdown Avatar
189 months ago
This developer has done nothing wrong, besides show the stupidity of users who use passcodes such as these. The unsolicited collection of data is something that happens everyday. Whenever you shop at WalMart, they record your credit card number and what you bought so they can refund you if need be. BUT they can easily bring up a purchase history and work out what your shopping style is, what you like to buy, what kinds of thing you buy. That's an invasion of privacy to a degree, but do you care?

The HUGE difference here is the developer can't tie up passcodes to individuals. What he wanted to do was look at the bigger picture. Apple published that they've sold x million iPads. OMG My iPad is in that statistics! That's MY data THEY HAVE NO RIGHT! See how stupid that is?

Information is taken from you all the time, whether or not you know it, and for most purposes it's used for seeing trends in large datasets, not to target you personally. Until your personal privacy is breached there's no need to cry. Apple are bending to consumer pressure because of a large volume of complaints they've probably received about the App.

People will always make big deals about these 'privacy' issues. It's the same thing as the whole location cache. People'll freak out because they think that somehow they're somehow special and that their info matters.

Should this dev have told his users about this study of his prior to do it? probably. Did it hurt anyone at all? NO
Score: 5 Votes (Like | Disagree)
jclardy Avatar
189 months ago
I don't think anonymous data collection should be forbidden, but when collecting something that could be "personal" information it should be.

In this case it is a users PIN code. While most were probably meaningless, some people may have used the same code to unlock their phone, the same code they use for their bank card or some other important number.

And the issue for me isn't so much that he collected it, it is that the code was probably sent in plaintext over a normal HTTP connection. So if someone was around you with a packet sniffer they could easily grab your unlock code. Of course the chances of this happening are essentially zero (A person must be sniffing the wifi that you are on, you must be using this app, and you must be setting your unlock code) it is still something you probably shouldnt do.

I'm fine with developers collecting simple anonymous data like "how many times did I open this app" or something along those lines, but I'd rather not have my device broadcasting security codes or passwords.
Score: 4 Votes (Like | Disagree)
mroddjob Avatar
189 months ago
You do realise that app developers are allowed to collect data from people using their apps as long as its anonymous? And the user agreement that we as users sign up to could be classed as letting us know that this can happen in any app. So technically i think he's still working within the EULA. I'm not saying i agree with what he did, but theres no need to flame the guy and call for life time bans etc. if he genuinely wanted to use the data to improve his application by stopping people using common passcodes. I'm sure analysis of passwords to persuade people to use less common passwords is/has been a common thing on the internet.

Also IMO it's not like he set out to trick people into using the same phone lock passcode for his app,(maybe i'm wrong and there were ulterior motives to it). But really, we shouldn't be using the same passwords for things, do you use the same pin code for your atm as your phone, or the same password for online banking and your macroumous login?

Edit: ok re-read the article and he did say that because of the similarity in the code screen he thought it may correlate with real codes, but still from the EULA apple does give the developers the right to do it and we still blindly accept the agreement and really he can't do anything with the data to harm anyone, and i think it helps to bring to light the importance of not using easy to guess common passwords (at the read the EULAs we accept)
Score: 4 Votes (Like | Disagree)
pyro008 Avatar
189 months ago
This developer has done nothing wrong, besides show the stupidity of users who use passcodes such as these. The unsolicited collection of data is something that happens everyday. Whenever you shop at WalMart, they record your credit card number and what you bought so they can refund you if need be. BUT they can easily bring up a purchase history and work out what your shopping style is, what you like to buy, what kinds of thing you buy. That's an invasion of privacy to a degree, but do you care?

The HUGE difference here is the developer can't tie up passcodes to individuals. What he wanted to do was look at the bigger picture. Apple published that they've sold x million iPads. OMG My iPad is in that statistics! That's MY data THEY HAVE NO RIGHT! See how stupid that is?

Information is taken from you all the time, whether or not you know it, and for most purposes it's used for seeing trends in large datasets, not to target you personally. Until your personal privacy is breached there's no need to cry. Apple are bending to consumer pressure because of a large volume of complaints they've probably received about the App.
Agreed. It is probably the same stupid users that have 0000 or 1234 as their passcodes that are all up in arms about OMG DEY STEELIN MA INFOS! You get your information stolen every day, but since its not brought to your attention in an article, you don't care? I get so many Amazon emails "recommending similar products" that I would never use that it borders on spam. How do they know which products are similar? Oh noes! Shut down Amazon!
Score: 3 Votes (Like | Disagree)

Popular Stories

iOS 26

iOS 26.4 and iOS 27 Features Revealed in New Leak

Friday December 12, 2025 10:56 am PST by
Macworld's Filipe Espósito today revealed a handful of features that Apple is allegedly planning for iOS 26.4, iOS 27, and even iOS 28. The report said the features are referenced within the code for a leaked internal build of iOS 26 that is not meant to be seen by the public. However, it appears that Espósito and/or his sources managed to gain access to it, providing us with a sneak peek...
apple beta 26 lineup

Apple Leak Confirms Work on Foldable iPhone, AirTag 2, and Dozens More Devices

Monday December 15, 2025 2:05 pm PST by
Last week, details about unreleased Apple devices and future iOS features were shared by Macworld. This week, we learned where the information came from, plus we have more findings from the leak. As it turns out, an Apple prototype device running an early build of iOS 26 was sold, and the person who bought it shared the software. The OS has a version number of 23A5234w, and the first...
Apple Logo Top Half

Early iOS 26 Software Leak Uncovers Dozens of Upcoming Apple Features

Monday December 15, 2025 3:05 pm PST by
Software from an iPhone prototype running an early build of iOS 26 leaked last week, giving us a glimpse at future Apple devices and iOS features. We recapped device codenames in our prior article, and now we have a list of some of the most notable feature flags that were found in the software code. In some cases, it's obvious what the feature flags are referring to, while some are more...
Apple Foldable Thumb

Leak Reveals Foldable iPhone Details

Monday December 15, 2025 9:09 am PST by
The first foldable iPhone will feature a series of design and hardware firsts for Apple, according to details shared by the Weibo leaker known as Digital Chat Station. According to a new post, via machine translation, Apple is developing what the leaker describes as a "wide foldable" device, a term used to refer to a horizontally oriented, book-style foldable with a large internal display....
iOS 26

Apple Releases iOS 26.2 With Alarms for Reminders, Lock Screen Changes, Enhanced Safety Alerts and More

Friday December 12, 2025 10:10 am PST by
Apple today released iOS 26.2, the second major update to the iOS 26 operating system that came out in September, iOS 26.2 comes a little over a month after iOS 26.1 launched. ‌iOS 26‌.2 is compatible with the ‌iPhone‌ 11 series and later, as well as the second-generation ‌iPhone‌ SE. The new software can be downloaded on eligible iPhones over-the-air by going to Settings >...
iOS 26

iOS 26.3 Beta 1 Features: What's New So Far

Monday December 15, 2025 4:23 pm PST by
Apple is testing iOS 26.3, the next version of iOS 26 that will launch around January. Since iOS 26.3's testing is happening over the holidays, it is a smaller update with fewer features than we've seen in prior betas. We've rounded up what's new so far, and we'll add to our list with subsequent betas if we come across any other features. Transfer to Android Apple is making it simpler...
iOS 26

iOS 26.2 Coming Soon With These 8 New Features on Your iPhone

Thursday December 11, 2025 8:49 am PST by
Apple seeded the second iOS 26.2 Release Candidate to developers earlier this week, meaning the update will be released to the general public very soon. Apple confirmed iOS 26.2 would be released in December, but it did not provide a specific date. We expect the update to be released by early next week. iOS 26.2 includes a handful of new features and changes on the iPhone, such as a new...
airpods max 2024 colors

AirPods Max 2 Likely to Offer These 10 New Features

Monday December 15, 2025 7:41 am PST by
Apple released the AirPods Max on December 15, 2020, meaning the over-ear headphones launched five years ago today. While the AirPods Max were updated with a USB-C port and new color options last year, followed by support for lossless audio and ultra-low latency audio this year, the headphones lack some of the features that have been introduced for newer generations of the regular AirPods and the ...