My prediction bullish run will coming soon in this years, so i think now the cheapest for Bitcoin price, and buy more for short invetment is good idea to make profit. I just remember about the same situation of hacking of Bitfinex exchange last years, after this case in next afew month the price of BTC bull run up to 30 times.
The price of bitcoin is much lower right now than it has been. The best option to follow through with is completely up to you. In my opinion it would be a good idea to buy now and then have patience and continue to hold until you are ready to sell when you believe it will bring in more for you.