steven grossman is head of strategy at bay dynamics. it's a cyber dynamics company. great to see you. i use my fingerprint touch all the time. is this the hacker's next big trick? how safe am i? >> if you look at the security on the devices, you have many different ways of securing your devices. just like any other security, it's a matter of balancing security and convenience. how many locks do you want versus how much inconvenience do you want to be when you enter. >> the manufacturers point out now, too, that having that fingerprint has encouraged a lot more people to put security on their device where they may not have had that four digit pass code before. let's talk about other hack attacks. over global ransom wear attack called wanna cry. it mostly hit businesses, but i know that there's a ransom hack attacks are becoming more prevalent. what do you do if your computer gets held hostage? >> if you get into that situation, unfortunately you have some decisions to make. hopefully you've practiced good cyber hygiene in order to prevent it. >> what does that mean? >