What does an iOS profile have access to? I went to the website referred here and by mistake I installed the profile they offered to me.

In one of the comments, someone mentioned:


  Do NOT use this site as it makes you install a Profile service which
  can make your data accessible to the owner of the site


I don't know what an iOS profile can potentially steal from me. I did a factory reset. However, so far, what did they have access to?


My passcode?
My keyboard?
My applications (I did not enter their password after installing the profile)?


In general, what maximum activities and information do they have access to?
The profile can only see your Unique Device Identifier. Nothing else.