Not if you know what you're doing, no. Investigations of previous thefts have shown that you can't really hide bitcoins by shuffling them around. However there

Not if you know what you're doing, no. Investigations of previous thefts have shown that you can't really hide bitcoins by shuffling them around. However there is a number of bitcoin addresses from services like exchanges that you can transfer bitcoins into and then out of to effectively launder money. An investigator would need the cooperation of the exchanges to track this money. The attacker will almost certainly move this money through a half dozen or more exchanges in equally many legal jurisdictions. Good luck following that trail.