Originally Posted by serpens

I share your frustration. And you touched a nerve.

I hope so.

With no warning to me or to the front-line agents who told me I must have changed something.

Absolutely. It's like Chase markets travel cards with no idea that people who have them might travel. Either that, or Chase doesn't think checking transactions is something its card-holding travelers should do.

I'm a technological moron, but from what I read, email and SMS each have vulnerabilities and either is way better than nothing. Also, my understanding is that Chase could query the MAC address of a device that's trying to access an account. (Yes, I know a MAC address can be spoofed.) It seems to me that Chase could assume that someone using the last MAC address that has been used to access the account and the email address on file is likely to be the customer.

Originally Posted by tonei

Fwiw even if you switch SIM cards the chase app should still be fully functional on your phone unless you actively log out. I think I was also recently given the option to approve a login on an unrecognized device by having them send a notification to the Chase app on my phone and approving it there.

Hopefully they will add support for app-generated authenticator codes at some point, though the banking industry is pretty behind the curve on that front so I’m not holding my breath.

Originally Posted by LondonElite

Yes, I noticed the email option has disappeared. Not good. I think I will need to register a second phone.