A tricky new computer virus is making the rounds, and infected users see pop-up messages which claim to be from the FBI and threaten people with a fine or prison unless they pay up. The virus, meanwhile, locks up your computer, holding it – and you – hostage, thus its name: "ransomware." Computer users pick up this virus by clicking on malicious links in emails and messages sent through social media sites, or by visiting compromised websites. From there, a notice like the one below appears. The Better Business Bureau of Minnesota and North Dakota (BBB) is offering some tips on how to avoid ransomware and advice on what to do if you become the next victim.