Apple updated Apple Air Tags AFTER they were released.
> Apple has released a software update for AirTags following concerns they could be used to track people secretly.
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> AirTags were released in April and were promoted as a way for people to keep track of their belongings.
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> However, critics warned that the coin-sized tracker could be easily used to monitor someone's real-time location.
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> Following the update, AirTags will beep if they are away from their owner's iPhone - at a random time between eight and 24 hours - to alert people nearby.
https://www.bbc.co.uk/news/technology-57351554
The audio alerts don't work, if somebody has cut the speaker connections, instructions available on YouTube. It seems to take a couple of minutes.
From Feb 2022
> The latest beta for iOS 15.4 includes new features designed to prevent Apple’s AirTags from being used to stalk people, 9to5Mac reports. Most notably, there’s a new privacy notice during their setup which warns that using AirTags to track someone without their consent could be a crime, and that law enforcement can request details on an unknown AirTags’ owner. “AirTag is Linked To Your Apple ID,” the notice reads.
https://www.theverge.com/2022/2/23/22947063/airtags-anti-stalking-ios-15-4-beta-4-privacy-notice
Here's the Apple news release for AirTags dated 21st April 2021 https://www.apple.com/newsroom/2021/04/apple-introduces-airtag/
Update on the case linked in the article.
> A woman found guilty of using an Apple AirTag to track her cheating boyfriend to a bar before repeatedly running him over in a parking lot and killing him in front of bystanders was sentenced Thursday to spend 18 years in prison.
https://lawandcrime.com/crime/apple-airtag-killer-sentenced-to-prison-for-killing-andre-smith-outside-bar/
[UPDATE]
Have a look at this article from Apple Insider.
> Apple's AirTags are being used for stalking, but the problem isn't new, nor remotely exclusive to Apple — and is easier to execute undetected with other inexpensive methods. The real issue is the overall failure of law enforcement to act.
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> Reports of AirTags being used to stalk people don't give a full picture of the dangers of "stalkerware," and the reports often shift blame entirely onto Apple.
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> Apple isn't the only one whose tracking devices can facilitate stalking, it's just the highest profile vendor to provide tracking tools.
https://appleinsider.com/articles/21/12/31/the-airtag-stalking-problem-is-only-partially-apples-problem-its-mostly-law-enforcements
Register article on the case https://www.theregister.com/2022/06/14/airtag_tracking_murder_charge/
You may find this Register article from May 2023 "Apple, Google propose anti-stalking spec for Bluetooth tracker tags" informative https://www.theregister.com/2023/05/02/apple_google_antistalking_bluetooth/