Preventive Security

Preventive security is a cybersecurity approach focused on proactively stopping threats before they can cause harm, rather than reacting after an incident occurs. It involves implementing controls, policies, and technologies to reduce vulnerabilities and block attacks at the earliest possible stage. This concept is foundational to modern security strategies, aiming to minimize risk and protect assets from compromise.

Also known as: Proactive Security, Preventative Security, Prevention-First Security, Pre-emptive Security, PS

Why learn Preventive Security?

Developers should learn and apply preventive security principles to build inherently secure software and systems, reducing the likelihood of breaches and data loss. It is critical in high-risk environments like finance, healthcare, and government, where proactive defense is mandated by regulations and essential for trust. Use cases include secure coding practices, threat modeling, and implementing access controls during development.

Learning Resources

• docs: OWASP Proactive Controls
• docs: CIS Controls - Implementation Guide
• course: Preventive Security in Software Development - Coursera Course
• docs: NIST Cybersecurity Framework
• tutorial: Secure Coding Practices - Microsoft Learn