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

iOS 26

Everything New in iOS 26.2 Beta 3

Monday November 17, 2025 3:20 pm PST by
Apple provided developers with the third beta of an upcoming iOS 26.2 update, and there are still new features that are being added with each beta that we get. We've rounded up all of the changes that Apple made in beta 3. AirDrop Apple added new AirDrop functionality, providing a way for two people to share files temporarily without having to add one another as contacts. iOS 26.2...
Tim Cook WWDC 2018

Report: Tim Cook to Step Down as Apple CEO 'as Soon as Next Year'

Saturday November 15, 2025 2:40 pm PST by
Apple is preparing for Tim Cook to step down as CEO of the company "as soon as next year," according to the Financial Times. The company's board of directors and senior executives "recently intensified preparations for Cook to hand over the reins," the report said. While the report said that Apple is unlikely to name a new CEO before its next earnings report in late January, it went on to ...
applecare apple care banner

Apple Brings New AppleCare+ Options to India

Tuesday November 18, 2025 8:42 am PST by
Apple today announced an expansion of AppleCare+ coverage in India, with new options for monthly and annual plans, and the addition of Theft and Loss for iPhone for the first time. Options for monthly and annual AppleCare+ plans in India provide more choice and flexibility, allowing users to keep coverage for as long as they require. Apple's vice president of Worldwide iPhone Product...
AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 2, AirPods Pro 3, and AirPods 4

Thursday November 13, 2025 11:35 am PST by
Apple today released new firmware designed for the AirPods Pro 3, the AirPods 4, and the prior-generation AirPods Pro 2. The AirPods Pro 3 firmware is 8B25, while the AirPods Pro 2 and AirPods 4 firmware is 8B21, all up from the prior 8A358 firmware released in October. There's no word on what's include in the updated firmware, but the AirPods Pro 2, AirPods 4 with ANC, and AirPods Pro 3...
best early black friday deals

Best Black Friday Apple Deals Live Now - Save on AirPods, iPads, and Apple Watches

Saturday November 15, 2025 1:45 pm PST by
We're officially in the month of Black Friday, which will take place on Friday, November 28 in 2025. As always, this will be the best time of the year to shop for great deals, including popular Apple products like AirPods, iPad, Apple Watch, and more. In this article, the majority of the discounts will be found on Amazon. Note: MacRumors is an affiliate partner with some of these vendors. When ...
Apple Wallet ID Illinois

iPhone Driver's License Feature Launching in Illinois

Tuesday November 18, 2025 8:47 am PST by
In select U.S. states, residents can add their driver's license or state ID to the Wallet app on the iPhone and Apple Watch, providing a convenient and contactless way to display proof of identity or age at select airports and businesses, and in select apps. Starting this Wednesday, November 19, the feature will be available to residents of Illinois. The announcement confirmed that the...
iPhone Pocket Short

iPhone Pocket Now Available to Order, But Already Selling Out

Friday November 14, 2025 6:20 am PST by
Apple recently teamed up with Japanese fashion brand ISSEY MIYAKE to create the iPhone Pocket, a limited-edition knitted accessory designed to carry an iPhone. iPhone Pocket is available to order on Apple's online store starting today, in the United States, France, China, Italy, Japan, Singapore, South Korea, and the United Kingdom. However, it is already completely sold out in the United...
apple silicon mac lineup 2024 feature purple m5

Apple's 2026 Mac Plans

Friday November 14, 2025 3:23 pm PST by
Most of Apple's Macs are slated to get M5 chips across 2026, and there's a possibility we'll even see the first M6 chips toward the end of the year. Updates are planned for everything from the MacBook Air to the Mac Studio. MacBook Air (Early 2026) The MacBook Air will be one of the first Macs to get a 2026 refresh, with an update planned for the first few months of the year. The MacBook...
tvOS 26 Profiles

tvOS 26.2 Adds a Useful New Feature to Your Apple TV

Friday November 14, 2025 10:02 am PST by
Starting with the upcoming tvOS 26.2 update, currently in beta, additional profiles created on the Apple TV no longer require their own Apple Account. In the Settings app on the Apple TV, under Profiles and Accounts, anyone can create a new profile by simply entering a name and indicating whether the profile is for a kid. The profile will be associated with the primary user's Apple Account,...

Top Rated Comments

zepfhyr Avatar
59 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
59 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
59 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
59 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
59 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
59 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)