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Groups > comp.mobile.android > #155427

Re: How does whatsapp work?

From Maria Sophia <mariasophia@comprehension.com>
Newsgroups comp.mobile.android
Subject Re: How does whatsapp work?
Date 2026-08-31 09:20 -0600
Organization BWH Usenet Archive (https://usenet.blueworldhosting.com)
Message-ID <117464b$1oe2$1@nnrp.usenet.blueworldhosting.com> (permalink)
References <n1ua9ltc3losq5kj0lfkh8lim4t3bp4npf@4ax.com>

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micky wrote:
> I ask because I've used my contact list to tell if somoene has whatspp
> installed or not.  Is it accurate to do that?

I don't understand Whatsapp well enough to answer all of Micky's questions,
but I do want to say that it works just fine WITHOUT any contacts at all.

Whatsapp does hash the contacts, but the nature of VOIP hashes for contacts
is that the salt has to be the same forever, so that's a privacy issue.

When I want to dial out, I just use the WhatsApp dialer, which itself, will
work just find if the person we're dialing happens to have WhatsApp
themselves.

It used to be the only reason I added Whatsapp was that everyone I know in
Germany seems to be using it instead of phone calls and SMS/MMS, but then
it turns out that Whatsapp also does video way better than MMS/SMS does.

Particularly when the parents of the grandchildren are using the iPhone.

I suspect RCS may make that second reason moot, over time, but I don't use
RCS yet.

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Thread

How does whatsapp work? micky <NONONOmisc07@fmguy.com> - 2026-08-31 09:01 -0400
  Re: How does whatsapp work? Maria Sophia <mariasophia@comprehension.com> - 2026-08-31 09:20 -0600
    Re: How does whatsapp work? micky <NONONOmisc07@fmguy.com> - 2026-09-01 00:51 -0400
  Re: How does whatsapp work? "Carlos E.R." <robin_listas@es.invalid> - 2026-08-31 20:37 +0200
    Re: How does whatsapp work? micky <NONONOmisc07@fmguy.com> - 2026-09-01 01:01 -0400
      Re: How does whatsapp work? "Carlos E.R." <robin_listas@es.invalid> - 2026-09-01 09:44 +0200
    Re: How does whatsapp work? "s|b" <me@privacy.invalid> - 2026-09-01 12:47 +0200
      Signal (was: Re: How does whatsapp work?) Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-01 12:21 +0100
        Re: Signal (was: Re: How does whatsapp work?) "s|b" <me@privacy.invalid> - 2026-09-01 16:30 +0200
          Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-01 19:15 +0200
            Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-01 19:32 +0200
              Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-01 21:25 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-01 21:26 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-01 21:53 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 11:20 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 17:10 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 20:37 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 21:23 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 21:36 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 22:31 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 22:32 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-03 02:40 +0530
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 23:24 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-03 11:39 +0845
                [OT/Meta] Trolling (was: Re: Signal) Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-03 11:37 +0100
                Re: [OT/Meta] Trolling Maria Sophia <mariasophia@comprehension.com> - 2026-09-04 03:43 +0930
                Re: Signal Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-03 11:28 +0100
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-04 02:31 +0930
                [OT] "trolling" (was: Re: Signal) Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-02 11:18 +0100
                Re: [OT] "trolling" Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 17:10 +0200
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 20:25 +0200
                Re: [OT] "trolling" Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 22:28 +0200
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 22:33 +0200
                Re: [OT] "trolling" Maria Sophia <mariasophia@comprehension.com> - 2026-09-03 02:41 +0530
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 23:25 +0200
                Re: [OT] "trolling" Maria Sophia <mariasophia@comprehension.com> - 2026-09-03 11:35 +0845
                Re: [OT] "trolling" Chris <ithinkiam@gmail.com> - 2026-09-09 20:07 +0000
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-10 09:27 +0200
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 20:24 +0200
                Re: [OT] "trolling" Frank Slootweg <this@ddress.is.invalid> - 2026-09-02 18:56 +0000
                Re: [OT] "trolling" Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 21:18 +0200
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 21:38 +0200
                Re: [OT] "trolling" Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 22:27 +0200
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 22:33 +0200
                Re: [OT] "trolling" Maria Sophia <mariasophia@comprehension.com> - 2026-09-03 05:58 +0845
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 23:25 +0200
                Re: [OT] "trolling" Maria Sophia <mariasophia@comprehension.com> - 2026-09-03 11:36 +0845
            Re: Signal Andy Burns <usenet@andyburns.uk> - 2026-09-01 18:59 +0100
              Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-01 21:18 +0200
            Re: Signal Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-02 11:11 +0100
              Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 17:18 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 20:28 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 21:25 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 21:38 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 22:32 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 23:00 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-03 02:39 +0530
        Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-01 19:05 +0200
          Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-01 19:13 +0200
            Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-01 20:52 +0200
              Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-01 21:27 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-01 21:50 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 11:20 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 17:11 +0200
                Re: Signal Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-02 18:50 +0100
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 20:30 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 21:34 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 21:51 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 22:34 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 23:00 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-03 06:00 +0845
                Re: Signal Andy Burns <usenet@andyburns.uk> - 2026-09-03 09:42 +0100
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-04 03:13 +0930
                [OT] "trolling" (was: Re: Signal) Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-04 13:12 +0100
                Re: [OT] "trolling" (was: Re: Signal) micky <NONONOmisc07@fmguy.com> - 2026-09-08 21:04 +0300
                Re: [OT] "trolling" (was: Re: Signal) Jim Jackson <jj@franjam.org.uk> - 2026-09-08 19:32 +0000
                Re: [OT] "trolling" (was: Re: Signal) micky <NONONOmisc07@fmguy.com> - 2026-09-09 08:21 +0300
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 21:31 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 21:51 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 22:27 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 22:34 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-03 02:37 +0530
                Re: Signal Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-03 11:55 +0100
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-04 02:44 +0930
                [OT] "trolling" (was: Re: Signal) Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-04 12:39 +0100
                Re: Signal micky <NONONOmisc07@fmguy.com> - 2026-09-09 08:44 +0300
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-04 09:56 +0200
                [OT] "trolling" (was: Re: Signal) Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-06 10:17 +0100
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-06 13:59 +0200
                Re: [OT] "trolling" Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-06 13:34 +0100
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-06 20:07 +0200
                Re: [OT] "trolling" micky <NONONOmisc07@fmguy.com> - 2026-09-09 08:51 +0300
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-09 12:49 +0200
                Contacts AJL <noemail@none.com> - 2026-09-09 09:55 -0700
                Re: Contacts Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-10 10:16 +0100
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-10 09:30 -0700
                Re: Contacts AJL <noemail@none.com> - 2026-09-10 17:49 +0000
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-10 21:33 -0700
                Re: Contacts AJL <noemail@none.com> - 2026-09-11 06:54 +0000
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-11 01:24 -0600
                Re: Contacts AJL <noemail@none.com> - 2026-09-11 11:09 -0700
                Re: Contacts Frank Slootweg <this@ddress.is.invalid> - 2026-09-11 18:23 +0000
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-11 12:56 -0600
                Re: Contacts Frank Slootweg <this@ddress.is.invalid> - 2026-09-11 19:37 +0000
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-11 12:46 -0600
                Re: Contacts AJL <noemail@none.com> - 2026-09-11 12:48 -0700
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-11 21:59 -0230
                Re: Contacts AJL <noemail@none.com> - 2026-09-11 19:12 -0700
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-12 01:31 -0100
                Re: Contacts Frank Slootweg <this@ddress.is.invalid> - 2026-09-12 13:00 +0000
                Re: Contacts AJL <noemail@none.com> - 2026-09-12 08:32 -0700
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-12 17:31 +0000
                Re: Contacts AJL <noemail@none.com> - 2026-09-12 13:05 -0700
                Re: Contacts Frank Slootweg <this@ddress.is.invalid> - 2026-09-12 18:00 +0000
                Re: Contacts AJL <noemail@none.com> - 2026-09-12 13:05 -0700
                Re: Contacts micky <NONONOmisc07@fmguy.com> - 2026-09-17 13:33 +0300
                Re: Contacts AJL <noemail@none.com> - 2026-09-17 12:30 +0000
                Re: Contacts Siard <saylor259@mailbox.org> - 2026-09-17 15:12 +0200
                Re: Contacts AJL <noemail@none.com> - 2026-09-17 16:12 +0000
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-17 18:48 +0200
                Re: Contacts Arno Welzel <usenet@arnowelzel.de> - 2026-09-18 10:04 +0200
                Re: Contacts Arno Welzel <usenet@arnowelzel.de> - 2026-09-18 10:00 +0200
                Re: Contacts AJL <noemail@none.com> - 2026-09-18 10:58 -0700
                Re: Contacts micky <NONONOmisc07@fmguy.com> - 2026-09-17 13:26 +0300
                Re: Contacts Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-11 00:30 +0100
                Re: Contacts micky <NONONOmisc07@fmguy.com> - 2026-09-12 21:58 +0300
                Re: Contacts AJL <noemail@none.com> - 2026-09-12 13:16 -0700
                Re: Contacts micky <NONONOmisc07@fmguy.com> - 2026-09-13 05:06 +0300
                Re: Contacts micky <NONONOmisc07@fmguy.com> - 2026-09-13 05:15 +0300
                Re: Contacts AJL <noemail@none.com> - 2026-09-12 20:40 -0700
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-13 11:22 +0545
                Re: Contacts AJL <noemail@none.com> - 2026-09-13 06:05 -0700
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-13 06:54 -1000
                Re: Contacts AJL <noemail@none.com> - 2026-09-13 14:17 -0700
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-15 00:50 +0000
                Re: Contacts Frank Slootweg <this@ddress.is.invalid> - 2026-09-13 19:02 +0000
                Re: Contacts AJL <noemail@none.com> - 2026-09-13 14:17 -0700
                Re: Contacts Maria Sophia <mariasophia@comprehension.com> - 2026-09-14 21:56 -0300
                Re: Contacts AJL <noemail@none.com> - 2026-09-20 00:15 -0700
                Re: Contacts micky <NONONOmisc07@fmguy.com> - 2026-09-23 21:02 +0300
                Application identification on Motorola Android (was: Re: Contacts) Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-13 08:11 +0100
                Re: Signal Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-02 21:12 +0100
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 22:26 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 22:40 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-03 02:35 +0530
                Re: Signal Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-03 00:03 +0100
                Re: Signal Nuno Silva <user17785@newsgrouper.org.invalid> - 2026-09-03 01:00 +0000
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-04 02:47 +0930
                [OT] "trolling" (was: Re: Signal) Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-03 11:49 +0100
                Re: [OT] "trolling" Maria Sophia <mariasophia@comprehension.com> - 2026-09-04 03:38 +0930
                Re: [OT] "trolling" "Carlos E.R." <robin_listas@es.invalid> - 2026-09-04 09:26 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 20:29 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 21:33 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 21:51 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 22:35 +0200
                Re: Signal "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 23:00 +0200
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-03 02:36 +0530
              Re: Signal Nuno Silva <nunojsilva@invalid.invalid> - 2026-09-02 11:24 +0100
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-02 17:30 +0200
                Re: Signal Andy Burns <usenet@andyburns.uk> - 2026-09-03 09:29 +0100
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-04 03:04 +0930
                Re: Signal Andy Burns <usenet@andyburns.uk> - 2026-09-03 18:46 +0100
                Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-04 04:22 +0930
          Re: Signal Maria Sophia <mariasophia@comprehension.com> - 2026-09-01 19:20 +0200
      Re: How does whatsapp work? "Carlos E.R." <robin_listas@es.invalid> - 2026-09-01 17:03 +0200
        Re: How does whatsapp work? "s|b" <me@privacy.invalid> - 2026-09-02 20:56 +0200
          Re: How does whatsapp work? "Carlos E.R." <robin_listas@es.invalid> - 2026-09-02 21:04 +0200
            Re: How does whatsapp work? "s|b" <me@privacy.invalid> - 2026-09-04 21:15 +0200
              Re: How does whatsapp work? "Carlos E.R." <robin_listas@es.invalid> - 2026-09-05 14:14 +0200
                Re: How does whatsapp work? "s|b" <me@privacy.invalid> - 2026-09-05 18:03 +0200
    Re: How does whatsapp work? Frank Slootweg <this@ddress.is.invalid> - 2026-09-01 14:37 +0000
      Re: How does whatsapp work? micky <NONONOmisc07@fmguy.com> - 2026-09-09 09:07 +0300
        Re: How does whatsapp work? "Carlos E.R." <robin_listas@es.invalid> - 2026-09-09 12:53 +0200

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