Hackers aren’t just targeting banks and credit card companies anymore. They’ve harmed hospitals with ransomware, a type of malicious software that’s designed to block access to a computer system until a sum of money is paid. Now, factories are on hacker hit-lists, too. Most cyberattacks are aimed at larger companies, but that doesn’t mean small-to-medium firms can neglect data security. How much do you know about ransomware, Trojans, and worms? More importantly, how will you defend against them?