Coincheck hacked? Japanese exchange lost up to 600mln $ in XEM?

Breaking news.

There is a rumour that big Japanese exchange has lost up to 600 mln $ in XEM, but this information is not officially confirmed, so it could be another play of FUD - be careful. All withdrawals been halted now by Coincheck including JPY.
Because of that rumour price of NEM dropped from around 1.02$ to 0.78$.

Also a huge amount of XRP (101,265,057.474195 XRP) been moved from Coincheck to another address.

If that could be a true hack attack, we're looking at the biggest hack attack in crypto history.

But...

as we know, today another BTC futures round expire, is that could be a special rumour because of that?
That situation is bit not clear, i think that could be done for purpose to focus people attention on Coincheck situation, and turn away our attention from expiring contracts.

Don't FUD.
Stay calm.