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
186 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
186 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
186 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
186 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
186 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
186 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 Feature

iOS 26 Available Tomorrow With These 8 New Features

Sunday September 14, 2025 8:46 am PDT by
Following three months of beta testing, iOS 26 will be released this Monday, September 15. The update is compatible with the iPhone 11 series and newer, and it will be available to install via the Settings app, under General → Software Update. Below, we have highlighted eight new features included in iOS 26. Even more new features and changes are outlined in Apple's release notes for the...
iPhone 17 Pro Colors

Didn't Pre-Order a New iPhone Yet? Here's How Long the Wait is Now

Friday September 12, 2025 6:11 am PDT by
iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, and iPhone Air pre-orders began at 5 a.m. Pacific Time in the U.S. and many other countries today. If you have yet to place a pre-order, you might face a longer wait now, depending on your desired configuration. As of shortly after 6 a.m. Pacific Time today, nearly all iPhone 17 Pro Max configurations on Apple's online store in the U.S. are facing ...
airpods translate

AirPods Live Translation Blocked for EU Users With EU Apple Accounts

Thursday September 11, 2025 4:01 am PDT by
Apple's new Live Translation feature for AirPods will be off-limits to millions of European users when it arrives next week, with strict EU regulations likely holding back its rollout. Apple says on its feature availability webpage that "Apple Intelligence: Live Translation with AirPods" won't be available if both the user is physically in the EU and their Apple Account region is in the EU....
apple n1 chip

Apple's New N1 Chip in iPhone 17, iPhone 17 Pro, and iPhone Air Has a Wi-Fi 7 Limitation

Saturday September 13, 2025 10:01 am PDT by
The latest iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, and iPhone Air models are equipped with Apple's all-new N1 chip for Wi-Fi 7, Bluetooth 6, and Thread connectivity. However, the chip has a Wi-Fi 7 bandwidth limitation. According to FCC documents reviewed by MacRumors, the N1 chip in all of the new iPhone models supports up to 160 MHz channel bandwidth for Wi-Fi 7, short of the...
iPhone 17 Pro Colors

iPhone 17 and iPhone 17 Pro Models Are eSIM-Only in These Countries

Tuesday September 9, 2025 12:23 pm PDT by
Apple continues to phase out the physical SIM card tray on iPhones, with the latest models relying solely on eSIM technology in more countries. The new iPhone 17, iPhone 17 Pro, and iPhone 17 Pro Max support eSIMs only in these countries and regions, according to Apple: Bahrain Canada Guam Japan Kuwait Mexico Oman Qatar Saudi Arabia United Arab Emirates Un...
iphone air all colors

iPhone Air and iPhone 17 Pro Now Facing Extended Delivery Estimates

Saturday September 13, 2025 11:43 am PDT by
iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, and iPhone Air pre-orders began on Friday in the U.S. and many other countries. iPhone 17 Pro Max delivery estimates quickly slipped beyond the Friday, September 19 launch day for those who had yet to place an order, and now the rest of the new models have started to follow suit. As of shortly after 11:30 a.m. Pacific Time today, select iPhone 17, ...
Tim Cook Rainbow

Apple Reportedly Plans to Launch These 10 Products in 'Coming Months'

Sunday September 14, 2025 8:45 am PDT by
Apple's annual September event is now in the rearview mirror, with the iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, iPhone Air, Apple Watch Series 11, Apple Watch Ultra 3, Apple Watch SE 3, and AirPods Pro 3 set to launch this Friday, September 19. As always, there is more to come. In his Power On newsletter today, Bloomberg's Mark Gurman said Apple plans to release many products in the...
iphone 17 lineup

iPhone 17 Models Launch on September 19 With These New Features

Friday September 12, 2025 7:58 am PDT by
Apple will launch its new iPhone 17 lineup and ultra-thin iPhone Air in stores on Friday, September 19, and the company has already shown off the new devices at its fall event, which ran with the the tagline "Awe dropping." The iPhone 17 series brings a host of new features and enhancements. Here's a rundown of the biggest upgrades and changes: iPhone 17 Display Changes The iPhone...
iPhone 17 Air Battery

Apple Reveals iPhone Air Battery Replacement and Repair Fees

Friday September 12, 2025 9:33 am PDT by
Apple today disclosed its out-of-warranty repair fees for all of the iPhone 17 and iPhone Air models, ahead of the devices launching next week. First and foremost, Apple's battery replacement fees did not increase for the latest iPhone models in the U.S., with Apple charging a flat $119 to replace the battery inside an iPhone 17 Pro, iPhone 17 Pro Max, or iPhone Air. This is the same fee it...
iPhone 17 Pro Cosmic Orange

Skipping the iPhone 17 Pro? Here's What's Rumored for iPhone 18 Pro

Wednesday September 10, 2025 8:33 am PDT by
While the iPhone 18 Pro and iPhone 18 Pro Max are still a year away, there are already a few rumors about the devices that offer an early look ahead. If you are skipping the iPhone 17 Pro and want to know about what to expect from the iPhone 18 Pro models, we have recapped a few of the key rumors below. Under-Screen Face ID In April 2023, display industry analyst Ross Young shared a...