Tether open-source tool adds Bluetooth access to iPhone messages on Linux

According to Crypto Briefing, the open-source Tether developer tool on GitHub now lets Linux desktops read an iPhone's texts, contacts and app notifications over Bluetooth. The project has no connection to the Tether stablecoin issuer.
What version 0.2.0 brings
Version 0.2.0 of the project was released on August 19, 2026, and introduced clipboard synchronization and file transfer between phone and desktop. The Bluetooth capability is the larger addition: it gives a Linux machine access to SMS and iMessage conversations, contacts and app notifications without anything extra being installed on the iPhone. Crypto Briefing reports that no changes are needed on the iOS side.
The project links iPhones with Linux desktops running Wayland. Rather than asking the phone to cooperate with an unfamiliar device, the computer presents itself as a Bluetooth accessory that the iPhone already trusts.
How the Bluetooth link operates
The report says the project draws on several standard Bluetooth profiles, namely MAP, PBAP and ANCS. One handles messages, one handles the address book, and the last forwards the notifications that appear on the lock screen. Users set up the connection by running tether –bt-setup and then tether –bt-pair.
Privacy concerns raised
Crypto Briefing describes the integration as improving cross-platform connectivity while raising privacy concerns. Because the feature exposes private messages and contacts to a desktop computer, the access it grants is the focus of the report. The report does not describe any security incident.
Open questions
- Which Linux desktops and iPhone models have been tested with the Bluetooth feature?
- How is access to messages and contacts protected once a device is paired?