People being hacked since the last Server Check.

That seems like an awful lot of effort for them to have gone through for just one item. Weird.

AHA, they put it in my storage for some reason, but didn't destroy it. Yay for small victory.

You know, this scares me.
Up until now I've assumed that this hacking method or leaked database are only in the hands of one goldselling site, and they are taking what NX, meso, and tradeables they can off accounts, but not doing any of the more spiteful things account hackers have been known to do (dropping untradeables, blowing up locked equips back when that was possible, etc).
You having this done to you suggests either that they're getting meaner for some reason, or that the method is now in other hands as well.