Ransomware

Summary

Ransomware is a type of malicious software designed to block access to a computer system or data until a ransom is paid. It typically encrypts files or locks users out of their devices, demanding payment to restore access. Ransomware attacks can cause significant operational disruption and financial loss for individuals and organizations.

Key Characteristics

• Encrypts or locks critical data and systems to deny user access.
• Demands ransom payment, often in cryptocurrency, to release the data.
• Spreads through phishing emails, malicious downloads, or exploiting vulnerabilities.
• Can target a wide range of devices, including desktops, servers, and mobile devices.
• Often includes a deadline, threatening permanent data loss if the ransom is not paid.

Defensive Controls

• Regularly back up data and verify backup integrity.
• Implement strong email filtering and user awareness training to prevent phishing.
• Keep software and systems updated with the latest security patches.
• Use endpoint protection solutions with ransomware detection capabilities.
• Restrict user permissions to limit the spread of ransomware within networks.

Related Security Solutions

Antivirus and anti-malware software, endpoint detection and response (EDR) tools, secure email gateways, network segmentation, data backup and recovery solutions, and security awareness training platforms are commonly used to defend against ransomware attacks.