Compare the Top Free Computer Security Software as of June 2025

What is Free Computer Security Software?

Computer security software helps protect devices, networks, and sensitive data from unauthorized access, cyberattacks, and other security threats. These tools provide a range of protective features such as antivirus, firewall, encryption, malware detection, and intrusion prevention systems. Computer security software is essential for safeguarding against viruses, ransomware, spyware, and phishing attacks, ensuring the integrity, confidentiality, and availability of data. Many security solutions also offer real-time monitoring, automated updates, and threat intelligence to detect and mitigate new vulnerabilities as they emerge. Businesses and individuals rely on computer security software to reduce risks, comply with regulations, and maintain a secure computing environment. Compare and read user reviews of the best Free Computer Security software currently available using the table below. This list is updated regularly.

  • 1
    Threatcop

    Threatcop

    Threatcop

    Threatcop is a cyber security simulator and awareness tool that launches dummy cyber attacks on employees followed with awareness modules and gamified assessment. It simulates and imparts customized awareness based on top 6 attack vectors namely Phishing, Ransomware, Vishing, SMiShing, Cyber Scam and Removable Media. It compares the pre and post cybersecurity awareness levels of employees and provides a comprehensive report on individual user awareness as 'Employee Vulnerability Score (EVS)'. The awareness videos, advisories, newsletters and gamified quiz are customized with respect to the EVS score, thus, ensuring cyber resilience. It is a complete suite for your employees' cyber security awareness.
  • 2
    Cofense PhishMe
    Your employees need to be conditioned to spot and report phishing emails immediately. With Cofense PhishMe™, simulations are based on the latest threats known to bypass SEGs, empowering your users to become human threat detectors. With resilient users attuned to the latest phishing threats, you have the best organizational defense. Cofense PhishMe Playbooks let you configure a full 12-month program, complete with phishing simulation scenarios, landing pages, attachments, and educational content, in just a few clicks. Our Smart Suggest capability uses advanced algorithms and embedded best practices to recommend scenarios based on current active threats, industry relevance, and your program’s history. The most important part of your phishing defense is reporting and resiliency rates. Boost reporting and help users become active defenders with Cofense Reporter™, our one-click reporting button.
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