What is ransomware?

Ransomware is a type of malicious software that attempts to block access to a computer system or data until a ransom is paid. It typically spread through phishing emails or by taking advantage of unpatched software vulnerabilities. Once it infects a system, it will often encrypt files or render the system unusable, and then display a message demanding a ransom be paid in order to restore access. Ransomware attacks can be very damaging and costly for businesses, as well as disruptive for individuals. In some cases, victims have been able to recover their data without paying the ransom, but this is not always possible.

How does ransomware work?

Ransomware is a type of malware that encrypts a victim’s files, making them inaccessible, and demands a ransom payment in exchange for the decryption key. It is one of the most common types of cybercrime, and is extraordinarily lucrative for attackers.

Ransomware attacks usually begin with a phishing email, which tricks the victim into clicking on a malicious link or attachment. Once the ransomware is downloaded and executed, it will begin to encrypt the victim’s files. The ransomware will also usually leave a ransom note, which instructs the victim on how to pay the ransom and decrypt their files.

Paying the ransom does not guarantee that the victim will get their files back, and often times, victims will not receive the decryption key even after paying the ransom. Additionally, paying the ransom only encourages attackers to continue using ransomware, as it is a very profitable form of cybercrime.

The best way to protect against ransomware is to have backups of all important data, so that even if files are encrypted, they can be restored from the backup. Additionally, user education is important, as phishing emails are typically the vector for ransomware attacks.

We used malwarezero.org to write this article about ransomware. Click here to learn more.