This March 2026 CSO Online article argues that insider threats are resurging as one of the most consequential—and underestimated—risks facing organizations today. The article draws on research from Mimecast, Forrester, Accenture, and interviews with senior security leaders from SANS Institute, ISACA, Health-ISAC, and Optiv to present a comprehensive picture of how the insider threat landscape has fundamentally shifted.
Key Findings:
Scale of the Problem
- 42% of organizations experienced an increase in malicious insider incidents over the past year, with 42% also reporting a rise in negligent incidents.
- Organizations experienced an average of six insider-driven incidents per month at an estimated cost of $13.1 million per incident.
- 66% of surveyed IT security and IT decision-makers expect insider-related data loss to increase over the next 12 months.
- 22% of data breaches in the prior 12 months resulted from internal incidents (Forrester 2025 Security Survey).
Evolving Threat Landscape
The article identifies several forces amplifying insider risk beyond the traditional “disgruntled employee” model:
- Expanded Insider Definition: The concept of an “insider” now extends beyond employees to include contractors, fraudulent hires who gained access through identity fraud, and AI agents operating with persistent, privileged access.
- Remote Work: The shift to distributed work removed physical and psychological barriers to insider risk. Downloading data to a personal device no longer “feels like espionage.”
- Economic Pressures: Hiring freezes, suppressed raises, and fears of job loss create fertile ground for both witting and coerced insider activity at scale.
- Social Media & OSINT: Social media platforms provide a treasure trove of information for threat actors to identify individuals susceptible to blackmail, bribery, or coercion.
- Dark Web Insider Recruitment: A 2026 Accenture report highlighted a 69% increase in insiders offering access to hackers in 2025 vs. 2024, and a 127% surge in hackers recruiting insiders compared with 2022.
- AI as Force Multiplier: AI agents can themselves become insider threats—going rogue or being programmed to do so—while everyday employees armed with AI tools are more capable of circumventing security controls.
- Nation-State Infiltration: North Korean operatives are using identity fraud to secure legitimate IT roles, earning money to send home while laying groundwork for data theft or extortion upon discovery.
Expert Recommendations
Security experts quoted in the article urge organizations to shift from reactive, technically focused programs to integrated ones that fuse behavioral signals with technical telemetry, extend insider risk frameworks to non-human/agentic identities, coordinate across legal, HR, and security functions, and implement adaptive controls that identify high-risk actions in real time.
How TMPC Addresses These Threats
The threats and gaps identified in this article map directly to TMPC’s core mission, proprietary methodologies, and 15+ years of continuous Counter-Insider Threat (C-InT) and User Activity Monitoring (UAM) operations at JSOC/USSOCOM—recognized as the #1 DoD Insider Threat Program among 24 components by both DCSA and DIA.
1. Behavioral-Technical Fusion
Article Gap: Experts call for programs that fuse behavioral signals with technical telemetry rather than relying on reactive, technically focused approaches.
TMPC Solution: TMPC employs proprietary structured analytic methodologies that take raw UAM alerts and layer on behavioral analysis using recognized professional judgment frameworks (including WAVR-21, HCR-20, and Calhoun/Weston Pathway to Violence modeling) to determine whether an indicator represents negligence, coercion, or deliberate malicious intent. Rather than treating technical monitoring and behavioral assessment as separate functions, TMPC’s analysts bridge both domains in a single integrated workflow—delivering exactly the behavioral-technical fusion the article’s experts demand.
2. Zero-Trust Insider Oversight
Article Gap: Insiders with valid credentials and trusted access pose the greatest risk because they bypass perimeter defenses entirely.
TMPC Solution: TMPC’s proprietary zero-trust oversight framework addresses the trust paradox head-on—the people monitoring insider threats are themselves insiders with the highest levels of access. This model ensures continuous accountability even for analysts and administrators running the program, closing a gap most organizations don’t even recognize exists.
3. Purpose-Built UAM Expertise
Article Gap: Organizations need technologies that detect unusual or unauthorized access behaviors and adaptive controls that adjust protections in real time.
TMPC Solution: TMPC’s team brings 30,000+ analyst hours on Everfox EverView (formerly Innerview/ForcePoint)—purpose-built UAM that monitors endpoint-level user behavior (keystrokes, file transfers, print jobs, removable media, application usage) in classified and unclassified environments. This is not a SIEM or perimeter tool; it is the exact continuous monitoring capability the article describes as essential.
4. Expanded Insider Classification
Article Gap: The definition of “insider” now includes contractors, fraudulent hires, AI agents, and coerced individuals—far beyond the binary malicious/negligent split.
TMPC Solution: TMPC has developed a proprietary incident classification taxonomy that accounts for the full spectrum of insider types and motivations across complex workforce environments (military, civilian, contractor personnel in compartmented programs at USSOCOM/JSOC). This taxonomy goes well beyond the simple malicious/negligent binary and is purpose-built for the expanded threat landscape the article describes.
5. Command Decision Support
Article Gap: Security leaders must coordinate across CISO, Chief Legal Officer, and HR functions to identify and respond to insider threats effectively.
TMPC Solution: TMPC employs a proprietary command decision brief format designed to present insider threat cases to senior leadership (often flag officers) in a way that integrates technical findings, behavioral assessment, legal considerations, and recommended courses of action in a single deliverable. This is the operational mechanism for exactly the cross-functional coordination the article recommends—translating complex analytic findings into actionable intelligence for decision-makers.
6. Proactive Pre-Incident Detection
Article Gap: Most CISOs lack confidence they can detect an insider threat before serious damage occurs.
TMPC Solution: TMPC’s 15-year continuous C-InT program at JSOC/USSOCOM—ranked #1 among 24 DoD components by both DCSA and DIA—is proof that proactive, pre-incident detection works. The program is designed for continuous monitoring and early-warning behavioral triage, not post-breach investigation.
7. Coercion & Nation-State Threat Detection
Article Gap: Coerced insiders, dark web recruitment, and nation-state IT worker infiltration represent a growing and increasingly aggressive threat vector.
TMPC Solution: TMPC analysts operating at SOF and IC commands are trained to identify not just technical anomalies but the behavioral indicators of coercion, financial stress, and ideological vulnerability—the classic counterintelligence “ego, ideology, economics” framework referenced in the article, operationalized through structured professional judgment rather than gut instinct.
Bottom Line
This article describes the problem space TMPC has been solving for 15+ years at the highest classification levels in the Department of Defense. Where most organizations are just now recognizing the need to integrate behavioral and technical signals, extend insider frameworks to non-traditional identities, and build cross-functional response processes, TMPC operates a mature, combat-tested program with proprietary methodologies, purpose-built tooling expertise, and a documented track record as the top-rated DoD insider threat program.
For any organization reading this article and recognizing an insider threat capability gap, TMPC represents the proven solution—not a vendor selling monitoring software, but an operational partner that builds, runs, and continuously improves insider threat programs at the enterprise level.