You’re an entrepreneur, managing the business from your PC. You’re a doting mother, with hundreds of photos of your children on your laptop. Now, if someone seized all those files, how much would you pay to get them back?
There’s nothing theoretical about the scenario. Hundreds of thousands of people have had to wrestle with that question as so-called ransomware infections have surged, encrypting billions of documents. Hackers demand hundreds or thousands of dollars to provide the key that unscrambles files so you can view and use them again. One particularly virulent strain, called CryptoWall, has infected about 625,000 systems and encrypted more than 5.25 billion files since mid-March, according to new research from Dell SecureWorks. One desperate U.S. victim paid the hackers $10,000.