[GekkePrutser]

Yes and every time you add a new browser it changes your security code again.

It's a bit annoying because it undermines the value of the security notification. People get used to it (the boy that cried wolf). I used to get people asking if things were ok if I moved to a new device. This won't happen anymore when people get ten of these a day

[mellowagain]

Interestingly enough, my contacts didn't receice the security code changed message for me while I did in all my chats with them once I added a new device. Did you check with your contacts if they actually see the message as well?

[trulyrandom]

Yes, two contacts of mine asked me what happened after they received multiple "security code changed" messages.