How did spammers learn that I had updated my os

Appleisfrustratingme99 wrote:

My question: how was my phone identified as having updated the OS? I have had no problems or suspicions of any kind since then, so I am not looking for additional protective software, but I'd like to know how these folks learned that I'd updated the OS.

Your phone was not 'identified as having updated the OS'.

These are quite common scam calls coming from spoofed numbers going out to hundreds or thousands of numbers simultaneously.

The timing is a coincidence.

Appleisfrustratingme99 wrote:

A few weeks ago I updated the OS on my iphone 7 (to 14.4.2). No problems.

But about 45 minutes after that was completed, I got a call on that phone from a number I did not recognize, so I ignored the call. A few minutes later, a second call, from a different number (but same area code & exchange--same AC & exchange as my phone!)

Then a third, 4th, 5th, all from different numbers on my A/C & exchange. So I knew this was a scam of some sort. One of the callers left a voicemail, which I listened to--the usual nonsense about "your phone may have been compromised, call the apple support network for help"--which of course was nonsense.

My question: how was my phone identified as having updated the OS? I have had no problems or suspicions of any kind since then, so I am not looking for additional protective software, but I'd like to know how these folks learned that I'd updated the OS.

And how did you come to that conclusion that they knew you updated the OS?