Ask Different is a question and answer site for power users of Apple hardware and software. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I found a file AnonymousIdentifier_AD7E5BED-EF7F-59A7-856F-6984BE798469.plist in my /Library/Application Reporter/CrashReporter folder.

The content of that plist included a dictionary with key AnonHostUUID2 and a long hexadecimal string value.

What would create this file, and why?

share|improve this question
I had one of those as well, and it only contained an AnonHostUUID2 key. I didn't find any files containing that UUID either. – user495470 Jun 21 '13 at 10:12
This is not an attempted hacking against my computer, right? – Martine Bessault Jun 21 '13 at 10:15
@user51665 If you're thinking "Anonymous" here refers to the group, then you're wrong. Apple collects anonymous information whenever something crashes to diagnose and fix problems, if any. This file probably contains that information. – duci9y Jun 21 '13 at 10:21
Thanks @duci9y. That was what I was concerned about. – Martine Bessault Jun 21 '13 at 12:55
up vote 1 down vote accepted

CrashReporter creates those files for later uploading to Apple's servers. The files contain anonymous information (hence the prefix AnonymousIdentifier) about the crashes to help Apple diagnose and fix problems.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.