Ransomware is malware that locks and encrypts a victim's data, files, devices or systems, rendering them inaccessible and unusable until the attacker receives a ransom payment. A ransomware attack can shut down a business for days, even weeks and -- even when the company pays the ransom -- there's no guarantee it will ever get its assets back, or that it won't be attacked again. This guide covers the history and basics of ransomware, identifies the most common targets and offers expert instructions on how to prevent an attack. Or, if the worst happens, how to recognize an attack's taken place and remove the ransomware as swiftly as possible.

Prevention is the best weapon against a ransomware infection. But in the event of compromise, consider these responses to contain and remove ransomware.

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• Paul Kirvan

The ransomware attack is one of the most common types of cybersecurity attacks enterprises face. Obtaining the encryption key to unlock the files being held for ransom can be a scramble. Before panic sets in, a savvy cybersecurity team will rely on its ransomware preparation. A company needs to be prepared; otherwise, its ability to function could be thoroughly disrupted.

Knowing how to detect, respond to and remove ransomware -- should an attack occur -- is essential for minimizing damage to the business and its reputation.