site_archiver@lists.apple.com Delivered-To: bluetooth-dev@lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=me.com; s=1a1hai; t=1588882041; bh=0TBIs8Aug3S1xzlL+MtYklzdW8caLUYZ6t4l28UPLyU=; h=Content-Type:From:Subject:Date:Message-Id:To; b=0ixOBF//MUCUHHshohkvVnq5xeV4MKdj7zpBBoakMk0TMmaoLc7sHioxFPOoAEpAH tX7YG9a3zCPPwOzppW1pqdVk10yVPFfEqBh+PToFu+2gnDX886cUAKhZmE7+wIj89g z+bpS6Mz1pQ8A5BWxSncgD6X/fBtnDIJlP8uZzJuuNWDLwE2yNtCKsuWd3SRmSzKh4 MnJuKmNCogYocWbg1VY0LuDy/AQUep94JoW7rWq6DjG5bEKQ1THdnQ+kaAmfofnE/V FnQZMV3oYB4axelj/WZluJ/zlKF6Hi9/JXLitoiP062GOTSAKtICf5pUrgOPvGz2bx 4rt2a7P4QUwag== Apple have confirmed that the NHS app has no special privileges. The source code has been released and looks the same as any Bluetooth app I’ve made. Sent from my iPhone

On 7 May 2020, at 21:04, Jan Lübeck (Fyrastudio) <jan@fyrastudio.com> wrote:

 Apple did announce that they are sharing their APIs with specific developers. Maybe UK NHS is one of them? ______ Jan Lübeck Chief Technology Officer fyrastudio.com

...

On Thu, May 7, 2020 at 3:48 PM Darren Jones via Bluetooth-dev <bluetooth-dev@lists.apple.com> wrote: Unless you have your head buried in the sand, I’m sure everyone has noticed the sagas going on with countries creating their own COVID-19 contact tracing apps.

I have personally tried many times over the years to create an app that can broadcast and scan in the background to trigger a ‘contact trace’ and always failed. Yet the UK NHS are claiming they have an app that does just that.

I’d love to hear from anyone that’s had experience with background BT. Is it possible? Can a background CBPeripheral be detected by a background CBCentral?

If not, is there a definitive time period when discovery becomes impossible?

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