Find My Network Exploited to Send Messages

An exploit allows messages and additional data to be sent across Apple's Find My network, according to the findings of a security researcher.

apple findmy network feature
Security researcher Fabian Bräunlein has found a way to leverage Apple's ‌Find My‌ network to function as a generic data transfer mechanism, allowing non-internet-connected devices to upload arbitrary data by using nearby Apple devices to upload the data for them.

The ‌Find My‌ network uses the entire base of active iOS devices to act as nodes to transfer location data. Bräunlein explained in an extensive blog post that it is possible to emulate the way in which an AirTag connects to the ‌Find My‌ network and broadcasts its location. The ‌AirTag‌ sends its location via an encrypted broadcast, so when this data is replaced with a message, it is concealed by the broadcast's encryption.

find my network message exploit
Bräunlein's practical demonstration showed how short strings of text could be sent from a microcontroller running custom firmware over the ‌Find My‌ network. The text was received via a custom Mac app to decode and display the uploaded data.

It is not immediately clear if this ‌Find My‌ network exploit could be used maliciously or what useful purposes it may serve. Nonetheless, it seems that it could be difficult for Apple to prevent this unintended use due to the privacy-focused and end-to-end encrypted nature of the system.

For more information, see Bräunlein's full blog post, which explains in detail the entire technical process behind passing arbitrary data through the ‌Find My‌ network.

Popular Stories

Apple Wallet ID Illinois

Apple Plans to Expand iPhone Driver's Licenses to These 7 U.S. States

Wednesday December 24, 2025 8:40 am PST by
In select U.S. states, residents can add their driver's license or state ID to the Apple Wallet app on the iPhone and Apple Watch, and then use it to display proof of identity or age at select airports and businesses, and in select apps. The feature is currently available in 13 U.S. states and Puerto Rico, and it is expected to launch in at least seven more in the future. To set up the...
iPhone Top Left Hole Punch Face ID Feature Purple

iPhone 18 Pro Launching Next Year With These 12 New Features

Tuesday December 23, 2025 8:36 am PST by
While the iPhone 18 Pro and iPhone 18 Pro Max are not expected to launch for another nine months, there are already plenty of rumors about the devices. Below, we have recapped 12 features rumored for the iPhone 18 Pro models. The same overall design is expected, with 6.3-inch and 6.9-inch display sizes, and a "plateau" housing three rear cameras Under-screen Face ID Front camera in...
maxresdefault

Where's the New Apple TV?

Monday December 22, 2025 11:30 am PST by
Apple hasn't updated the Apple TV 4K since 2022, and 2025 was supposed to be the year that we got a refresh. There were rumors suggesting Apple would release the new Apple TV before the end of 2025, but it looks like that's not going to happen now. Subscribe to the MacRumors YouTube channel for more videos. Bloomberg's Mark Gurman said several times across 2024 and 2025 that Apple would...
maxresdefault

10 Mac Apps Worth Trying in 2026

Wednesday December 24, 2025 9:27 am PST by
2026 is almost upon us, and a new year is a good time to try out some new apps. We've rounded up 10 excellent Mac apps that are worth checking out. Subscribe to the MacRumors YouTube channel for more videos. Alt-Tab (Free) - Alt-Tab brings a Windows-style alt + tab thumbnail preview option to the Mac. You can see a full window preview of open apps and app windows. One Thing (Free) -...
iOS 26

iOS 26.2 Adds These 8 New Features to Your iPhone

Monday December 22, 2025 8:47 am PST by
Earlier this month, Apple released iOS 26.2, following more than a month of beta testing. It is a big update, with many new features and changes for iPhones. iOS 26.2 adds a Liquid Glass slider for the Lock Screen's clock, offline lyrics in Apple Music, and more. Below, we have highlighted a total of eight new features. Liquid Glass Slider on Lock Screen A new slider in the Lock...
airpods color prototypes

Apple Tested AirPods in Bright Colors

Saturday December 27, 2025 6:06 am PST by
Apple reportedly tested a version of the first-generation AirPods with bright, iPhone 5c-like colored charging cases. The images, shared by the Apple leaker and prototype collector known as "Kosutami," claim to show first-generation AirPods prototypes with pink and yellow exterior casings. The interior of the charging case and the earbuds themselves remain white. They seem close to some...
iPhone Fold Vertical Feature

Why Apple's Foldable iPhone May Be Smaller Than Expected

Tuesday December 23, 2025 5:21 am PST by
Apple's first foldable iPhone, rumored for release next year, may turn out to be smaller than most people imagine, if a recent report is anything to go by. According to The Information, the outer display on the book-style device will measure just 5.3 inches – that's smaller than the 5.4-inch screen on the ‌iPhone‌ mini, a line Apple discontinued in 2022 due to poor sales. The report has led ...
iPhone SE Cosmopolitan Clean

Apple Discontinued These 25 Products This Year

Wednesday December 24, 2025 7:24 am PST by
With the end of 2025 near, the time has come to look back at the devices and accessories that Apple discontinued throughout the year. Most of the products that were discontinued this year were simply replaced by a new model with an updated chip. However, the iPhone SE line was entirely discontinued when the iPhone 16e launched, and the iPhone Plus line is being phased out. Below, we have...
Foldable iPhone 2023 Feature Iridescent Search

Samsung Developing 'Wide Fold' With iPhone Fold-Like Design Ahead of Apple's 2026 Launch

Tuesday December 23, 2025 11:55 am PST by
Samsung is working on a new foldable smartphone that's wider and shorter than the models that it's released before, according to Korean news site ETNews. The "Wide Fold" will compete with Apple's iPhone Fold that's set to launch in September 2026. Samsung's existing Galaxy Z Fold7 display is 6.5 inches when closed, and 8 inches when open, with a 21:9 aspect ratio when folded and a 20:18...

Top Rated Comments

zepfhyr Avatar
61 months ago
The first thought that comes to mind is someone installing a compromised IoT device that gains legitimate access to their network and then uses the Find My network to funnel data out of the network, bypassing any firewall rules that prevent the IoT device from communicating with the Internet at large.

It's the type of thing you'd see in a heist or spy movie to try and snag someone's password.
Score: 10 Votes (Like | Disagree)
Unregistered 4U Avatar
61 months ago
Another
“IF YOU SET EVERYTHING UP JUUUUUUUUUST RIGHT, YOU CAN DO A THING!” from a security researcher. AirTags is the security gift that keeps on giving.
Next week,
“We’ve been able to determine that if you accelerate an AirTag at just the right speed towards a target that’s not trying to dodge and is totally aware and ok that you’re throwing it (though accelerate sounds cooler) YOU MAY BE ABLE TO HIT THEM!”
Score: 8 Votes (Like | Disagree)
ArtOfWarfare Avatar
61 months ago
This could be used for some kind of Denial of Service Attack, couldn't it?

You set up a server that's just spamming the Find My network, then all the Apple devices are constantly bouncing these spam messages around. They may end up drowning out legitimate Find My network messages.
Score: 8 Votes (Like | Disagree)
no_idea Avatar
61 months ago
Waiting for someone to show a hack that executed the following steps:
1) uses forgot password
2) clicks try another device for access code pin
3) has a hamster run in a wheel to disrupt radio waves transmitting the secret pin
4) said wheel traps the secret pin and translated via a sudoku puzzle to the hacker
5) hacker inlists a millennial to decrypt the puzzle
6) millennial asks for gluten free juice cleanser for payment
7) hacker gets in!
Score: 7 Votes (Like | Disagree)
TiggrToo Avatar
61 months ago

This could be used for some kind of Denial of Service Attack, couldn't it?

You set up a server that's just spamming the Find My network, then all the Apple devices are constantly bouncing these spam messages around. They may end up drowning out legitimate Find My network messages.
From the source:


With the public key validity check implemented, everything worked flawlessly. While I didn't do extensive performance testing and measurements, here are some estimates:

The sending rate on the microcontroller is currently ~3 bytes/second. Higher speeds could be achieved e.g. simply by caching the encoding results or by encoding one byte per advertisement
In my tests, the receiving rate was limited by slow Mac hardware. Retrieving 16 bytes within one request takes ~5 seconds
The latency is usually between 1 and 60 minutes depending on how many devices are around and other random factors.
Score: 7 Votes (Like | Disagree)
centauratlas Avatar
61 months ago
This is awesome (assuming it can't be badly exploited). It gives an ad hoc wireless relay network. There could be plenty of uses.
Score: 6 Votes (Like | Disagree)