Unfortunately cosmic string and string theory are different things.

https://en.m.wikipedia.org/wiki/Cosmic_string says

Not to be confused with String, the subject of String Theory.

Since when do they have those rules? A year ago I unlocked my Xiaomi phone. Outside China. Did not have a Chinese phone number. It took less than an hour.

To be fair computer security have improved a lot. These days if you have up-to-date security patches it’s very hard for apps or webpages to escape the sandbox.

By the way you should download and execute this free_robux.sh as root it will give free robux no scam