APN name change

[Alalia]

I set the APN settings to my providers correct information so I could use the data connection; a few days after setting the information the title of the APN was set to something malicious. No one had physical access to the phone at all.

Could anyone tell me how someone could possibly go about doing this?

 

[Japanorama]

What provider are you using, and what did the APN name change to, exactly?