it was called cryptolocker. screens would be frozen and people would be told that files were locked. to get access they had to pay a ransom. the ransom had to be paid in bitcoin. it was not the bitcoin that was the problem, it was the ransom and the locking of files. >> you mentioned cryptolocker. it seems like there is something happening with cryptolocker on one end and sony on the other. we are seeing cybercrime going from data into more and more -- from theft of data into more and more extortion. is that something you are worried about? >> extortion over the internet has a long history. it might be getting more sophisticated. i think it is not a new problem. it's been a problem for some time. it may be growing in sophistication and breadth as we see cyber's growing but i do not think it is a new problem. >> lets get your perspective on moves by some filmmakers to encrypt phones so law-enforcement cannot get into them. i have seen the fbi director way in comedy british prime minister, -- i've seen the fbi dir