Even State Department-funded Human Rights Watch admits that authorities combine legal and illegal methods to obtain convictions: https://text.hrw.org/report/2018/01/09/dark-side/secret-origins-evidence-us-criminal-cases

Combining dragnet surveillance with device hacking is intended in the design of both tools. Hence, State Department-funded Signal dupes you into handing over your identity as part of the population-centric mapping. In custody, your phone will be hacked when it is taken away if it’s important.

https://xcancel.com/hannahcrileyy/status/2034273723667161480#m

  • floquant@lemmy.dbzer0.com
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    2 days ago

    All your phone number provides is that you have ever used signal? Not what tower you’re connected to and therefore approximate realtime location? Your full identity via your telco? Social graph and history of your calls and texts?

    I’m not saying it’s their fault or that they are volunteering any information, but that’s how it is for any US-based corporation (doesn’t matter if it’s a nonprofit, any legal entity that can be subpoenaed)

    • xthexder@l.sw0.com
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      2 days ago

      The government already has access to every phone number in existence. They can already track every phone to figure out who attended a protest or whatever. Filtering down to “all phone numbers who’ve ever connected to Signal” doesn’t exactly narrow anything down. They don’t have any metadata about who you were chatting with.

      • SpookyBogMonster@lemmy.ml
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        2 days ago

        The government already has access to every phone number in existence

        They used to publish them in big books, even

      • ☂️-@lemmy.ml
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        2 days ago

        government already has access to every phone number in existence

        that’s precisely why you should not trust services that require it as private. phone number = identification.

        plus apparently your government considers you a terrorist if you do.

    • jabberwock@lemmy.dbzer0.com
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      2 days ago

      This is fundamentally not how Signal works, but you are generally correct in that a phone number has been shown to provide a lot of context for a person (or a device, at least). But Signal (the app) only uses a phone number for initial verification of an account. You have a lot of options to break that association with you - use a landline and get a call verification code, use a VoIP number (assuming you trust the provider), use a burner SIM, etc.

      Once you have an account, you can choose to identify yourself on the network solely via username so the registration number is not presented to other users. The Signal protocol itself is well-audited and generally secure.

      If your issue is with Signal the American company, use an open source fork like Molly with your own UnifiedPush instance. Then you’re only trusting them with transport of your encrypted messages, which again have shown to be secure at least in public audits.

      • rumba@lemmy.zip
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        11 hours ago

        I was putting my kid on Signal to join the family chat, he didn’t have service, so we just used wifi. I don’t know for sure that this hasn’t changed, but when I tried, they refused a google voice account and also refused an sms api acct. I dug into it some more and it appears you have to install it on a phone with cellular service, it needs to read your phone’s ID.

        I tried deactivating my phone, activating his acct on my phone with Google Voip, then moving it to his tablet. It would work for about a week then stop.

        I dug through a bunch of reddit and group threads on it, you simply could not activate it without a real SMS and a cellular link with all the ID’s.

        We eventually got him an apple watch with service, and it allowed that SMS in concert with my phone. Then I installed on his tablet and put my phone back to me. Once in a blue moon, it’ll make him reverify with SMS from the watch, but it works and doesn’t require my phone with service anymore.

        It might just be something about google’s voip which a lot places refuse, but it also refused twillio.

      • WhyJiffie@sh.itjust.works
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        2 days ago

        it all does not matter when most people register with their primary phone number that is already tied to their name

        • Paulemeister@feddit.org
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          2 days ago

          I still don’t get it. What is bad about signing up with your phone number? All readable Info that governments can force out of Signal is. “Yep this guy uses Signal, signed up last year” so nothing is lost (except if they use that as a sign you are a terrorist, but then they just wanted to monitor you anyway in the first place)

          • WhyJiffie@sh.itjust.works
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            2 days ago

            except if they use that as a sign you are a terrorist, but then they just wanted to monitor you anyway in the first place

            exactly. what is the question?

            also its not “monitor me” and “monitor you”, but “monitor whoever is using the service” more closely, and as it seems, retaliate against them.

            • Paulemeister@feddit.org
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              1 day ago

              The question is: What privacy do I loose by signing up to Signal with a phone number instead of hypothetically a username.

              If you are being monitored, they know your phone number. With that they know you are using Signal, but nothing more. Messaging through Signal is safe.

              If you are not being monitored, nobody knows you are using Signal. Messaging through Signal is safe

              • WhyJiffie@sh.itjust.works
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                18 hours ago

                The question is: What privacy do I loose by signing up to Signal with a phone number instead of hypothetically a username.

                if you could sign up with a username, your account couldn’t be linked to a real world identity. also the government wouldn’t have a phone number to send state malware to (unlike signal the telephony system is full of security vulnerabilities)

                If you are being monitored, they know your phone number.

                if you personally are monitored then yes they know your phone number. but here it’s the other way around. you became a person of interest because you use signal.

                If you are not being monitored, nobody knows you are using Signal.

                no. everybody who has the power to issue data requests to signal, and also has access to a database binding phone numbers to identities, knows that you are using signal.

                • Paulemeister@feddit.org
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                  17 hours ago

                  Ah ok now I get what you mean. Hashing for phone numbers is ineffective so it’s a two way lookup. Is the population using Signal small enough that this doesn’t just equate to surveiling everybody?

    • rumba@lemmy.zip
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      2 days ago

      If the only data surfacable from Signal is the phone number, not the crypto conversation, they didn’t source you on signal and get your number, they got your number through other means and used it to prove you use signal.

      They can’t see the conversation to contents to supoena the number to id.