AI and Human Expertise: PAGO Networks’ Hybrid MDR Strategy Explained

Lisa Chang
7 Min Read


The sheer volume is enough to paralyze a team. In cybersecurity today, AI doesn’t just power the attacks; it also floods the defense with a relentless stream of alerts. Every ping, every anomaly, every flagged event demands a human judgment call. It’s an operational quagmire where more data often means less clarity. This is the core challenge that PAGO Networks, a security firm out of Seoul, decided to tackle head-on. Their thesis is deceptively simple, yet it challenges a growing industry obsession with automation: technology detects, but people decide.

Since its founding in 2017, PAGO’s mission has been to shift security from what its CEO, Paul (YoungMok) Kwon, calls “alert-driven operations” to “decision-driven security operations.” This isn’t just semantics. In an alert-driven model, the metric of success is often the quantity of threats identified, leading to alert fatigue and critical signals lost in the noise. A decision-driven model, however, measures success by the quality and speed of the actions taken. It’s the difference between handing a security team a thousand-page log file and providing them with a concise, prioritized dossier on the three most critical risks they face right now.

This philosophy is the bedrock of PAGO’s Hybrid Managed Detection and Response (MDR) service. The “hybrid” here is crucial. It’s not a halfway point between fully manual and fully automated. Instead, it’s a deliberate fusion where AI-powered analytics and human expertise operate in a continuous, reinforcing loop. PAGO’s proprietary DeepACT platform acts as the technological nervous system, ingesting data across a customer’s entire digital estate. It uses advanced correlation and behavioral analytics to sift through the haystack, identifying the needles that warrant a closer look. But this is where the machine stops and the human begins.

The platform doesn’t just dump suspicious events on an analyst’s screen. It contextualizes them, enriching raw data with threat intelligence, historical patterns, and asset criticality. An experienced PAGO analyst then steps in to perform what the company views as an irreplaceable function: validation and prioritization. They ask the nuanced questions an AI cannot. Does this anomaly match a known adversary’s tactics? Is this unusual login attempt coming from a geographic location where the company has no business? What is the business impact if this potential threat is real? This human layer transforms a generic alert into a specific, actionable security decision.

I’ve seen too many security tools that promise a “set it and forget it” level of automation, only to create a false sense of security. PAGO’s model acknowledges a fundamental truth in cybersecurity: context is king. An AI can detect a port scan, but only a human analyst, understanding the unique business of a pharmaceutical research firm versus an e-commerce retailer, can decide if it’s background internet noise or a prelude to a targeted attack on sensitive clinical trial data. This human-in-the-loop approach is what allows PAGO to expand its services confidently into areas like Continuous Threat Exposure Management (CTEM), where understanding which vulnerabilities matter most is a deeply strategic business decision, not just a technical one.

Their strategy extends beyond internal expertise. PAGO actively avoids a walled-garden approach to technology, which is evident in partnerships like the one with Stellar Cyber for Open XDR capabilities. In conversations with practitioners, the frustration with tool sprawl is palpable. Every new security product adds another console, another data silo. By leveraging an Open XDR framework, PAGO can pull signals from a customer’s existing investments—firewalls, endpoint tools, cloud security posture management systems—and unify that visibility within DeepACT. This isn’t about swapping out a tech stack; it’s about making the current stack smarter and more cohesive, reducing the operational complexity that bogs down so many security teams.

The recent announcement of LG Uplus’s planned acquisition of PAGO Networks underscores the market’s validation of this balanced, decision-centric model. Large telecom providers like LG Uplus are on the front lines of securing national digital infrastructure. Their interest signals a recognition that for enterprise security to scale, it needs more than just advanced detection algorithms; it needs a reliable engine for human judgment and guided response. It’s a bet on the analysts as much as the analytics.

As Kwon told me, the next era of cybersecurity isn’t about generating more intelligence. The intelligence is already there, in overwhelming abundance. The real battleground is decision-making. In a landscape where AI can write phishing emails and craft malware, the defender’s ultimate advantage remains human cognition—the ability to think creatively, understand motive, and weigh business risk. PAGO Networks’ hybrid MDR strategy is built on this exact premise. It uses technology not as a replacement for the security team, but as a force multiplier, sharpening their focus and accelerating their instincts. In the end, the best security outcomes aren’t automated. They’re decided.

  • Challenge of alert fatigue
  • Shift to decision-driven security operations
  • Importance of human validation
  • Contextualizing suspicious events
  • Human-in-the-loop approach
  • Open XDR framework benefits
Aspect Alert-Driven Operations Decision-Driven Security Operations
Metric of Success Quantity of threats identified Quality and speed of actions taken
Model Characteristics Alert fatigue Focused and prioritized decision-making
Analyst Role Passive alert observer Active validation and prioritization
Technology Use Overreliance on automation Human judgment enhancement
Contextual Understanding Limited by machine analysis Deep business insight
Security Outcomes Automated responses Decided outcomes


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Lisa is a tech journalist based in San Francisco. A graduate of Stanford with a degree in Computer Science, Lisa began her career at a Silicon Valley startup before moving into journalism. She focuses on emerging technologies like AI, blockchain, and AR/VR, making them accessible to a broad audience.
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