Unfortunately, the cc domain (which was the old domain of eXch and is now owned by scammers) is still up too.
Who told you CC domain was once owned by real eXch?
I could be wrong, but from what I see it was first registered in the end of 2024, so it was never created by eXch, and it's not old.
https://www.whois.com/whois/exch.cc
If I remember correctly, the first official eXch username on Bitcointalk was exch.cc, just because of the domain. They changed that about a year ago.
Here is the confirmation I know both are owned by eXch, but different domains make it even easier for phishing. I too keep forgetting which one of the similar domain extensions is legit.
There is always a chance doamin could be changed in future for some reason, that is why.
Also, the plan is to move everything to exch.net, which is in their possession. Although a lot of time has passed since then, I have not seen a later update on the status of this move.
We will soon be migrating to the `exch.net` domain we bought for 10k$ so I don't feel any urge updating the OP right now and think it's better to update it when we perform definitive changes.
We bought the .net one because .net, .com and .org zones are those of very few left that are not managed by any centralized authority, unlike most ccTLDs today that were bought by corporations like CentralNic who can do whatever they want with the domains independently of the company that sells them.