How does this SMS Passcode screen work?

2

While doing a particular login using my mobile phone number, a SMS Passcode is sent, and then displayed like this on my iPhone:

Screenshot

How does it work? Is it an SMS generated with some metadata that the iPhone shows differently for security reasons (you don't want a passcode saved in your SMS inbox)?

I've searched a lot, but I couldn't find any information about such screens.

robahl

Posted 2014-02-26T07:16:29.753

Reputation: 123

Question was closed 2014-02-27T04:26:01.863

Why don't my banks do this? It's so annoying to manually delete those OTP messages. If they could "flash" and destroy themselves once I used them, that would be great... </rant> – ADTC – 2014-02-27T10:39:05.657

I don't understand the "too broad" reason to put this on hold. It's clear, has a screenshot, and has just one short answer which is correct. So there aren't "too many possible answers" or a possibility of having "good answers would be too long". – ADTC – 2014-02-28T07:05:29.043

Answers

2

I don't have an iPhone, but it's probably a so-called Flash SMS.

Daniel B

Posted 2014-02-26T07:16:29.753

Reputation: 40 502

Thanks, yea must be flash sms. Now to the "how to send flash sms" research. – robahl – 2014-02-26T15:48:18.323

Should be plenty floating around, considering the Android bug.

– Daniel B – 2014-02-26T16:01:34.087