When I press on some message to forward it, it shows me Random usernames of contacts I don’t know. And it even shows some Mobile Numbers I don’t know. For example, one number starts with +964 that’s Iraq. I’m from Europe tho. These contacts and numbers are from all over the place.
Edit: This only happens on Signal Desktop. If I try to forward a message on Android it only shows my Contacts. And none of these unkown ones.
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I advise you stop using Signal Desktop immediately, they keep the database key in plaintext. Exposed over 5 years ago and still not fixed. Frankly I find this pretty pathetic. Making this safer could be as simple as encrypting such files with something like age and perhaps regenerate the keys on a frequent basis (yes I know full disk encryption is somehow a viable solution against unwanted physical access. But instead, they’d rather focus on security by network effect by adding shiny UX features instead of fixing infrastructural stuff, like improving trust by decentralization, not requiring phone numbers to join, or adding support for app pasphrase (which is available in case of Molly, along with regular wiping of RAM data which makes things like cold boot or memory corruption attacks harder)
There is nothing more that I hate then typing on my Phone. I can’t life without Signal Desktop.
maybe try setting up a matrix bridge if you feel confident you can secure that properly. On one hand it might increase attack surface (use only servers and bridges with End to Bridge Encryption) but what’s an attack surface on software that is so ridiculously compromised. Also you can try using an alternative client such as Flare. Though YMMV, for me the last time I’ve used it it was quite rough around the edges but I’m happy to see it’s actively maintained so might be worth checking out.
Also no, flatpak doesn’t fix this issue. Yeah it provides some isolation which can be further improved with flatseal, and other defense-in-depth methods. But unless you are willing to face the trade-offs of using Qubes, you won’t compartmentalize your entire system. The key file in question is stored in
~/.local/share. I’m not denying vulnerabilities in userland applications, but thanks to it’s wide reach, often massive codebases and use of unsafe languages like C, it’s the core system or networked software that is the most common attack vector. And that doesn’t ship and will never ship via flatpak.The most obvious way this is exploitable is directory traversal. But not only that. Just look up “Electron $VULNERABILITY”, be it CSRF, XSS or RCE. Sandbox escape is much easier with this crap than any major browser, since
contextIsolationis often intentionally disabled to access nodejs primitives instead of electron’s safer replacements. Btw Signal Desktop is also an electron app.