# RADAR by Disruptors Cyber > RADAR is a continuous penetration testing service — 365-day external and internal attack surface monitoring with AI scanning and CREST-certified human pen test validation. ## Pages - [Home](/): RADAR overview, how it works, coverage, compliance, pricing, and comparison vs other PTaaS platforms. ## Articles - [What Is External Penetration Testing? A 2026 Guide](/blog/what-is-external-penetration-testing): Plain-English guide to external pen testing — scope, process, frequency, cost and how it differs from vulnerability scanning. - [Top 10 Continuous Penetration Testing Platforms in 2026](/blog/top-10-continuous-penetration-testing-platforms-2026): Independent comparison of the leading PTaaS and continuous pen testing platforms.