Rapid7

CTEM Without the Hype: Understanding Gartner's Continuous Threat Exposure Management Framework

The article explains the evolution of vulnerability management from basic scheduled scanning to risk-based approaches and finally to Continuous Threat Exposure Management (CTEM). It positions CTEM as a comprehensive program introduced by Gartner in 2022 that integrates asset management, EASM, CAASM, automated pentesting, and business-context prioritization. The five-stage cycle of Scoping, Discovery, Prioritization, Validation, and Mobilization is detailed with practical examples such as protecting customer databases in an e-commerce environment. Gartner predicts organizations prioritizing CTEM will suffer three times fewer breaches by 2026, though only 16% have reached operational maturity. The piece also covers common implementation pitfalls and the emergence of the first Magic Quadrant for Exposure Assessment Platforms featuring vendors like Tenable, Qualys, and Rapid7.

EASM Uncovers Forgotten Perimeter Assets Including 11-Year-Old Servers Invisible to Standard Scanners

EASM solutions continuously discover external attack surfaces by starting from public data such as company names, domains, WHOIS records, Certificate Transparency logs, and internet-wide scanners like Shodan and Censys. Unlike traditional vulnerability scanners that only check assets from a predefined list, EASM maps unknown shadow IT including forgotten test servers, abandoned marketing subdomains, exposed APIs, and cloud buckets left open to the internet. The technology follows the same reconnaissance path used by attackers and has become essential for mature vulnerability management programs after years of being considered exotic. Major vendors including Palo Alto Networks Cortex Xpanse, CyCognito, Qualys, Rapid7, and Tenable now lead the market, while Russian providers such as Positive Technologies PT EASM, BI.ZONE EASM, and CyberOK PenOps have grown rapidly since 2022. Without an established process for prioritization and remediation, EASM implementations risk generating overwhelming alert volumes rather than reducing risk. The approach is now viewed as a core component of Continuous Threat Exposure Management (CTEM) frameworks.