ID:2152835
 
See the title.

We have not one but two cases of users in our server having the same CID.
It can happen in some cases. There are a couple of bogus ones out there, and also it's possible (but rare) for two different ones to hash the same.
Based on the evidence I am aware of regarding at least one of these pairs, and an interrogation regarding the topic over a year ago by another admin, I think this is one of those rare cases.
Pirated versions of windows can sometimes all hash out to the same set of cids because of how they try to emulate things to pass windows validation.
In response to MrStonedOne
Interesting. That would explain one of the newer cases I discovered.
In response to MrStonedOne
This also tends to happen a lot when people use a terribly configured VM.