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Are you sure about this? > With Signal I can already add a new device and continue existing conversations without the other participants being notified that I'
by gshulegaard 6y ago
Are you sure about this?
> With Signal I can already add a new device and continue existing conversations without the other participants being notified that I've added a new device.
Just today I had a group chat notification that said:
"More than one member of this group is no longer marked as verified. Tap for options"
Tapping brought me to a menu that said:
"Safety Number Changes -- The following people many have reinstalled or changed devices. Verify your safety number with them to ensure privacy"
At which point I was given the option to re-verify (e.g. via a provided QR code), but also the option to manually mark "verified". That is to say something does notify participants of changes to recipient devices.
- smichel17 6y agoSignal still had a single primary device, your phone. What you describe happens when someone installs Signal on a new phone (or reinstalls on the current one). Linked devices are different. There is no notification when someone adds a new linked device. That's because the only way to add a linked device is to scan a QR code on the device with your phone, then confirm you want to add the device. The device is implicitly trusted, because only a trusted device can add it. (It is also possible to trigger the re-verification from the desktop manually by clicking "reset secure season" in the conversation menu, but that's separate from adding a device.) Aside: Implicit trust like this is a great trade-off, because otherwise you'd have to verify each of their devices from each of your devices, which means approximately nobody will ever do it. Ask anybody who used Matrix/Element E2EE prior to a couple months ago ;D.