it gets into spam e-mail or attachments, it locks your computer holding it and its data hostage until user has to pay ransom. this is a screenshot of what the virus dubbed want to cry. in this case users had to pay up to $600 to get access again. the side and speed hitting tens of thousands of computers including in hundreds of companies including the u.s., uk, china. it affected fedex here in the u.s. and british hospitals and medical centers. many were forced to cancel or delay routine procedures like x-rays, vital procedures like cancer treatments and no one has claimed responsibility. but as for, say, it's not likely to be a government. >> one of the things we have to often ground ourselves in as security professionals is although we often hear about the nation state attacks because they have become sensationalized in the news, the reality is 80% of what