How do I set up a SIM or port-out lock on my dad's phone without turning it into a big lecture?

#1Priya V(Joined Apr 2026 · 15 posts)October 19, 2026, 11:12 am

My dad (79, the tax office calls one) has finally agreed to a few changes after this forum and a lot of patience. He banks on his phone, and after reading Walt's thread about the No Service attack I'm now lying awake about SIM swaps.

He's fine with me "setting a few things up" as long as it isn't a performance. So what's actually worth doing on the phone side? I've seen port-out PIN, number lock, SIM PIN, eSIM, authenticator apps, and I don't know which of these matters most or where to start.

#2Walt F(Joined Jan 2026 · 17 posts)October 19, 2026, 2:37 pm

Ha, glad that thread was useful to someone. The two that made the difference for me were the port-out PIN on the mobile account and moving the bank and email off text codes onto an authenticator app. Ten minutes on the phone to the carrier for the first one, half an hour for the second.

I'd start with the carrier lock because it's invisible to him afterwards. He won't notice it until somebody tries to steal his number.

#3quilterjean(Joined Sep 2025 · 22 posts)October 20, 2026, 10:05 am

From the dad side of things, make it about you. "I've just done mine and the carrier said family should do it too" got further with me than any explanation ever did.

#4Dana WhitakerFraud examiner(Joined Feb 2025 · 89 posts)October 24, 2026, 9:45 am

Priya V said:

I don't know which of these matters most or where to start.

Walt's order is the right one, and I'd frame it this way: the goal is that nobody can move your dad's number without a code only he and you know, and that his important accounts don't rely on that number alone.

First, the carrier lock. A SIM swap or port-out works by convincing the carrier, or someone inside it, that the criminal is the account holder. Most major carriers now let you add an account PIN, a port-out PIN or a number lock, which means the number can't be moved without it. Write the PIN down somewhere safe at home, not in his phone.

Second, his email and bank. The FBI's advice on SIM swaps is to use stronger forms of verification than text codes alone, such as an authenticator app or a physical security key. Email first, because whoever controls email can reset everything else. If an app is a step too far for him, a bank's own app with a fingerprint is often an easier sell.

Third, the habit. Nobody genuine from the carrier will ring and ask for his PIN or a code. Hang up and call the number on the bill. That one rule covers a lot.

On eSIM: it can't be physically stolen, but the FCC is clear it doesn't stop port-out scams, so it's not a substitute for the lock. The full picture, including what to do if his phone ever drops to No Service out of nowhere, is in the site's new guide to SIM swap scams. The exact settings depend on his carrier and bank, so their own help lines are the place to confirm what's available on his account.

#5Priya V(Joined Apr 2026 · 15 posts)October 28, 2026, 6:20 pm

Done, and with zero lecture. Used Jean's line, did my own carrier lock first on speaker so he could hear how boring it was, then did his. Bank app with fingerprint was a surprisingly easy sell, he likes not typing the password. Authenticator for his email is a project for Christmas.

PIN is in the envelope with his will, which he found very funny.