Re: SMS spoofing

From	"Carlos E. R." <robin_listas@es.invalid>
Newsgroups	comp.mobile.android
Subject	Re: SMS spoofing
Date	2026-06-18 20:49 +0200
Message-ID	<n9ist8F97bmU1@mid.individual.net> (permalink)
References	(1 earlier) <s3crs4nq1d5n.dlg@v.nguard.lh> <n9i565F6v2gU2@mid.individual.net> <8idu6g1pxnf.dlg@v.nguard.lh> <n9imgiF97blU2@mid.individual.net> <1111c7a$2pu2r$1@dont-email.me>

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On 2026-06-18 20:08, AJL wrote:
> On 6/18/26 10:00 AM, Carlos E. R. wrote:
> 
>> My main question is if companies switching to sending RCS instead of 
>> SMS would avoid impersonating the sender, because RCS uses 
>> certificates. On the other hand, one certificate exchange per client 
>> in the database...
> 
> Just recently I got a voice message from American Express. It went to VM
> because I had DND on. It sounded like a live person who gave her first name
> and wanted to verify a large charge. She requested a call back and gave a
> phone number. Being the suspicious person that I am I used the number on
> the back of my card which was different. It turned out that the call was
> legitimate as was the charge in question.
> 
> But IMO how dumb of AMEX to use a system like that. Anybody could call, say
> they were AMEX, and give any number to call back and if successful scam you
> good.

Yes.

My ISP sends emails advising clients of best practices against scams. Do 
not trust, etc.

Then they send an SMS or an email that breaks the very rules they told 
us. I email them complaining about the practice, and they just don't answer.

> 
> BTW the charge was US$15K (for a new roof) so I can perhaps see why they
> questioned it. But I pay off the card every month so no extra cost for me
> and in this case the card cashback feature paid handsomely...
> 


-- 
Cheers,
        Carlos E.R.
        ES🇪🇸, EU🇪🇺;

Thread

SMS spoofing "Carlos E. R." <robin_listas@es.invalid> - 2026-06-18 10:01 +0200
  Re: SMS spoofing VanguardLH <V@nguard.LH> - 2026-06-18 03:36 -0500
    Re: SMS spoofing "Carlos E. R." <robin_listas@es.invalid> - 2026-06-18 14:04 +0200
      Re: SMS spoofing Andy Burns <usenet@andyburns.uk> - 2026-06-18 13:07 +0100
        Re: SMS spoofing "Carlos E. R." <robin_listas@es.invalid> - 2026-06-18 14:18 +0200
      Re: SMS spoofing VanguardLH <V@nguard.LH> - 2026-06-18 08:40 -0500
        Re: SMS spoofing "Carlos E. R." <robin_listas@es.invalid> - 2026-06-18 19:00 +0200
          Re: SMS spoofing AJL <noemail@none.com> - 2026-06-18 18:08 +0000
            Re: SMS spoofing "Carlos E. R." <robin_listas@es.invalid> - 2026-06-18 20:49 +0200
          Re: SMS spoofing VanguardLH <V@nguard.LH> - 2026-06-19 01:05 -0500
            Re: SMS spoofing Andy Burns <usenet@andyburns.uk> - 2026-06-19 07:46 +0100
              Re: SMS spoofing "Carlos E. R." <robin_listas@es.invalid> - 2026-06-19 12:12 +0200
              Re: SMS spoofing VanguardLH <V@nguard.LH> - 2026-06-20 03:14 -0500
                Re: SMS spoofing "Carlos E. R." <robin_listas@es.invalid> - 2026-06-20 10:25 +0200
            Re: SMS spoofing "Carlos E. R." <robin_listas@es.invalid> - 2026-06-19 12:11 +0200
  Re: SMS spoofing Andy Burns <usenet@andyburns.uk> - 2026-06-18 10:13 +0100
    Re: SMS spoofing "Carlos E. R." <robin_listas@es.invalid> - 2026-06-18 14:05 +0200
  Re: SMS spoofing Theo <theom+news@chiark.greenend.org.uk> - 2026-06-18 11:38 +0100
    Re: SMS spoofing "Carlos E. R." <robin_listas@es.invalid> - 2026-06-18 14:10 +0200
      Re: SMS spoofing Philippe <p.naudin+nntp@free.fr> - 2026-06-18 14:48 +0200
      Re: SMS spoofing VanguardLH <V@nguard.LH> - 2026-06-18 08:57 -0500
        Re: SMS spoofing "Carlos E. R." <robin_listas@es.invalid> - 2026-06-18 19:14 +0200
  Re: SMS spoofing AJL <noemail@none.com> - 2026-06-18 15:56 +0000
  Re: SMS spoofing Jörg Lorenz <hugybear@gmx.net> - 2026-06-19 09:13 +0200
    Re: SMS spoofing "Carlos E. R." <robin_listas@es.invalid> - 2026-06-19 12:13 +0200
      Re: SMS spoofing Jörg Lorenz <hugybear@gmx.net> - 2026-06-19 14:16 +0200
        Re: SMS spoofing Theo <theom+news@chiark.greenend.org.uk> - 2026-06-19 17:22 +0100
          Re: SMS spoofing Jörg Lorenz <hugybear@gmx.net> - 2026-06-19 21:23 +0200
          Re: SMS spoofing "Carlos E. R." <robin_listas@es.invalid> - 2026-06-20 01:17 +0200
        Re: SMS spoofing "Carlos E. R." <robin_listas@es.invalid> - 2026-06-20 01:14 +0200

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