What is considered the most cost-effective security control?

User training and awareness is often regarded as the most cost-effective security control because it addresses the human element of security, which is a critical vulnerability in many organizations.

When employees are educated about security best practices, potential threats, and organizational policies, they become more vigilant and capable of recognizing and avoiding security risks. This preventative measure can significantly reduce the likelihood of incidents such as phishing attacks, social engineering, or accidental breaches, often at a fraction of the cost compared to implementing other technical or physical controls.

In contrast, physical barriers, technical support services, and advanced encryption methods can require significant investment in resources, training, and ongoing maintenance, making them less cost-effective over time. While they each play an important role in a comprehensive security posture, they do not provide the same immediate and sustained benefits as fostering a culture of security awareness among users.