Is Kraken Being Hacked?

If you try to log in to Kraken, you get a message that says:

"MAINTENANCE ANNOUNCEMENT
Kraken is presently offline for maintenance.
While maintenance is underway, the website and API will not be reachable, and orders will not be able to be placed or canceled.
The Kraken Team"

However, when I used blockcypher to check the balance in my Kraken deposit address -- it showed up as spent. It was all gone. The balance was zero. Looks like almost all of it went to 1NDyJtNTjmwk5xPNhjgAMu4HDHigtobu1s

Anybody else finding this same thing?

UPDATE: Kraken is back up. And apparently the transfer was just part of their maintenance, because all funds are back where they are supposed to be.

BUT NO WITHDRAWALS ARE POSSIBLE AT THIS TIME!