2026 is the year continuous threat exposure management (CTEM) moves from prediction to expectation. Gartner calls it CTEM. Forresters describes the same evolution as proactive security. Different names, same objective; continuously identify, validate and reduce exploitable risk before attackers do. But most programmes that call themselves CTEM or proactive security are not finished. They cover some stages well and skip others entirely. The gaps are where breaches still get through.
Here are seven worth closing this year.
CTEM
CTEM, or continuous threat exposure management, is a five-stage framework Gartner introduced in 2022. It runs as a continuous loop: scoping, discovery, prioritization, validation, and mobilization. The aim is to find the exposures attackers can actually reach, and remove them before they are used.
A programme is only as strong as its weakest stage. That is where these gaps live.
Proactive Security
Proactive security is Forresters approach to helping organizations stay ahead of attackers by continuously identifying, assessing and reducing security risks before they become incidents. Rather than relying on periodic assessments or reacting after a breach, proactive security emphasizes ongoing visibility, validation, and remediation across the attack surface.
While the terminology differs, both encourage organisations to move beyond periodic assessments and reactive security.
1. Your scope stops at the assets you already know about
You cannot protect what you cannot see. Most organizations scope their programme around a known asset inventory, then find out later that the real attack surface is larger: forgotten subdomains, exposed APIs, cloud services spun up outside the central process.
Attackers reach those assets whether you have mapped them or not. Edgescan’s 2026 research is blunt about it: critical systems sit exposed to the public internet far more often than they should, usually because no process exists to flag them. Continuous attack surface management keeps the inventory current rather than annual, so scoping starts from what is actually exposed.
2. You test once a year, not continuously
An annual penetration test is accurate the day it runs. After that, the picture drifts, and it drifts fast: more than half of the vulnerabilities Edgescan validated in 2025 came from CVEs disclosed in the last three years, and attackers weaponized new flaws within hours of disclosure. A test from last quarter cannot see any of that.
Both CTEM and proactive security programmes are built to be continuous. Penetration testing as a service (PTaaS) keeps expert testing in the loop year round, so a vulnerability introduced in March is not waiting until next December to be found.
3. You rank by CVSS severity, not real exploitability
A CVSS score tells you how bad a vulnerability could be in theory. It does not tell you whether anyone is exploiting it, or whether it sits on a path to anything that matters.
Severity alone produces long lists and little focus. Layering exploitability data, EPSS and the CISA Known Exploited Vulnerabilities catalogue, points your team at the small share of exposures that carry real risk.
The numbers show why this matters. The CISA catalogue of actively exploited vulnerabilities reached 1,484 entries by the end of 2025, with 246 added that year. Yet the vulnerabilities most likely to be exploited still sit unfixed for an average of 134 days, because teams keep ranking by severity rather than likelihood.
4. You act on findings nobody has validated
Validation is the stage most teams skip, and it is the one that matters most. Unvalidated scanner output is full of false positives and theoretical issues that no attacker could reach.
Acting on it spends time you should be spending on genuine risk. Validated risk scoring confirms which findings are real and reachable before they ever land in a developer’s queue. Edgescan checks each finding against a data lake of more than 20 million validated vulnerabilities, clearing most automatically and routing the rest to expert testers.
5. You find vulnerabilities but lose track of the fix
Discovery without follow-through is not risk reduction. At enterprises with more than 1,000 staff, 37% of the vulnerabilities found in a year are still open at the end of it, and high or critical issues take an average of 54.8 days to close. Findings get lost across spreadsheets and handovers, with no clear view of what was fixed and what reopened. Read the report
Mobilization closes the loop. Tracking each issue through to a confirmed fix, and retesting to prove it, is the difference between knowing your risk and reducing it.
6. Your tools do not share a single view of risk
A typical stack runs separate tools for the web layer, the network, the cloud, and APIs. Each has its own console and its own scoring. Risk gets split across screens that do not agree with each other.
Consolidating exposure data onto one platform gives the team a single, ranked view. It also tends to cost less than maintaining the sprawl.
7. You trust automation to do a human’s job
Automated scanning is fast and broad. But it is shallow: it misses business logic flaws, chained attack paths, and the context that decides whether a finding matters. Edgescan’s own testing data bears this out, with hands-on testing surfacing critical issues like broken access control and business logic abuse that scanners routinely walk past.
The strongest programmes pair automation with people. Edgescan’s CREST and OSCP-certified testers run the assessments automation cannot, and validate the findings automation produces.
Frequently asked questions
What are the five stages of CTEM?
Scoping, discovery, prioritization, validation, and mobilization. The cycle repeats, adjusting as the business and the threat landscape change.
What is proactive security?
Proactive security is an approach to cybersecurity that focuses on identifying, validating and reducing risks before attackers can exploit them. Rather than reacting to incidents after they occur, organizations continuously assess and improve their security posture.
Is Proactive Security and CTEM the same?
They are closely related but not identical. Gathner defines CTEM as structured five step framework while Forrester describes proactive security as the broader strategy of continuously reducing attack exposure. Both encourage organizations to move beyond reactive security practices.
Is CTEM the same as vulnerability management?
No. Traditional vulnerability management focuses on finding and counting CVEs. CTEM is broader: it adds attack surface discovery, validation of real exploitability, and a closed loop through to remediation.
Which CTEM stage do most teams skip?
Validation. Many programmes move straight from prioritization to remediation, acting on findings that were never confirmed as real or reachable. It is the gap that wastes the most effort.
What tools support a proactive security strategy?
A proactive security program often combines attack surface management, vulnerability management, penetration testing, exposure validation, threat intelligence and continuous monitoring to reduce real-world risk.
How does penetration testing fit into CTEM?
Pen testing feeds the discovery and validation stages with expert, hands-on testing. Delivered continuously as PTaaS, it keeps that expertise in the loop all year rather than once at audit time.
See how Edgescan covers all five stages of CTEM. Start here.
