Arctic Wolf’s 2026 State of the Cybersecurity Attack Surface Report analyzes aggregated, anonymized data from more than 800,000 IT assets monitored through Aurora® Exposure Management. The findings reveal a common challenge across organizations of all sizes: fundamental security controls and asset visibility gaps remain widespread.
One in Three Assets Is Missing a Critical Control
The report found that 33% of IT assets lack at least one critical security control. Specifically:
- 18% are not covered by enterprise patch or configuration management
- 10% lack endpoint security protection
- 17% are invisible to legacy vulnerability management tools
These gaps are rarely isolated incidents. More often, they result from fragmented IT and security operations, disconnected inventories, and growing tool sprawl. When teams rely on different systems of record, assets inevitably fall through the cracks.
The consequences can be significant. Devices outside patch management may retain known vulnerabilities indefinitely. Assets excluded from vulnerability scanning are never assessed. Unprotected endpoints provide attackers with opportunities for credential theft, lateral movement, and ransomware deployment.
Compounding the problem, most organizations manage endpoint security, vulnerability management, patching, identity, and cloud security through separate platforms. Each generates its own findings, priorities, and risk scores. Without a unified view, security teams struggle to understand which exposures truly matter most.
End-of-Life Is Not an Edge Case
The report also found that 19% of IT assets have reached end-of-life (EOL), meaning they no longer receive vendor security updates.
These assets often persist in critical environments because applications depend on them or because organizations assume migration efforts are complete. In one Arctic Wolf customer environment, a large-scale migration reduced EOL assets by 41%, yet 8% of assets remained unsupported despite internal confirmation that the project was finished.
The lesson is clear: remediation efforts require continuous validation. Security teams must independently verify results rather than relying on assumptions or self-reporting.
Attackers Are Following the Path of Least Resistance
As organizations improve perimeter defenses, attackers are shifting tactics.
The percentage of Arctic Wolf incident response cases driven by external exploits dropped from 29% to 11%, while abuse of remote access services increased dramatically, accounting for 65% of non-BEC incident response cases, up from 24% three years earlier. Trusted-relationship abuse and misconfiguration-related incidents also surged.
Attackers increasingly target overlooked assets, legacy remote access technologies, and systems that lack proper security controls. Notably, every one of the top 10 most frequently exploited vulnerabilities in Arctic Wolf’s 2025 incident response cases had an available patch, including the most commonly exploited vulnerability, CVE-2024-40766 affecting SonicWall SonicOS.
The challenge is no longer simply finding vulnerabilities; it is identifying and fixing the exposures hiding in unmanaged portions of the environment.
Context Turns Findings into Action
A vulnerability score alone rarely reflects real-world risk. Security teams need additional context, including:
- Whether an asset is internet-facing
- The criticality of the affected system
- Available endpoint protections
- Exposure to active threats
- Business impact if compromised
A moderate-severity vulnerability on a critical internet-facing system may represent far greater risk than a critical-rated issue on an isolated server. Effective exposure management combines technical findings with threat intelligence, asset context, and business priorities to drive meaningful action.
The Takeaway
The 2026 attack surface landscape reveals a persistent reality: organizations continue to struggle with visibility gaps, missing security controls, end-of-life technology, and fragmented risk management. As attackers increasingly exploit overlooked assets and trusted access paths, effective cybersecurity depends on accurate asset inventories, continuous validation, and contextual risk prioritization, not simply identifying vulnerabilities.
