Ransomware is one of the most destructive forms of malware that can affect your computer systems. Unlike other malware, which may seek to steal specific types of information or just shut down your system, ransomware is designed to bring in a large sum of money for the owner. When ransomware infects your system, it takes some or all of it "hostage." You will typically receive a message demanding a sum of money in exchange for control of the captive data and/or operations. Different types of ransomware exist, and it is important to understand each type so you can protect yourself more effectively. Below are some of the most common sources of ransomware attacks.