MtGox stopped allowing withdrawals and deposits of fiat. If that ever happens on an exchange you are on, get your bitcoins out of there fast. Everyone knew MtGox was not legit and got their money out.
Easier said than done.
I tried to get my coins out of Gox and into paper in August 2013.
They demanded verification even though they said they were still allowing unverified Bitcoin withdrawals.
I hadn't had any ID (don't believe in it) since letting my driver's license lapse in 1966 but broke down and applied for an Ontario ID card.
By the time my ID arrived, my coins were already gone from Gox so I opened a ticket. After months of lame promises and buck-passing emails, they simply closed down.
Luckily it was only 50 coins that had cost me less than $6k.
That's a lot of money to some people. A hell of a lot.