Beyond the Noise: Key Takeaways from the H2 2025 Cyber Threat Intelligence Report

Beyond the Noise: Key Takeaways from the H2 2025 Cyber Threat Intelligence Report

In cybersecurity, insight is valuable, but only action reduces risk. As we move through 2026, the lessons learned from the latter half of 2025 are becoming the blueprint for modern defense. Our Cyber Research Unit (CRU) analyzed over 1,000 high and critical severity alerts investigated by our SOC to bring you the H2 2025 Cyber Threat Intelligence Report.

This isn't just a collection of statistics; it's a reflection of real-world investigations across thousands of environments. Here is what the data is telling us about the evolving threat landscape.

The Great Industry Shift: Manufacturing in the Crosshairs

For the first time, Manufacturing has overtaken Banking and Finance as the most targeted industry. This shift signals a strategic move by threat actors toward environments where operational downtime has an immediate, high-stakes business impact.

We also saw Healthcare surge into the top three most targeted sectors. In these environments, the tolerance for downtime is zero, making them prime targets for the "Big Three" ransomware groups currently dominating the landscape: Qilin, Akira, and Incransom.

Identity is the New Perimeter

The report highlights a critical trend: attackers aren't "breaking in"—they are "logging in." While phishing remains the top initial access technique, we observed a significant rise in Brute Force attacks and the abuse of Valid Accounts.

Our SOC teams are increasingly seeing threat actors bypass EDR and SIEM controls by using "EDR Killer" scripts and abusing legitimate Remote Monitoring and Management (RMM) tools like AnyDesk and ConnectWise. Because these tools are digitally signed and trusted, they allow adversaries to blend in with normal IT operations.

The "Containment-First" Mandate

The data is clear: organizations that prioritize rapid containment consistently reduce dwell time and limit business impact. As threat actors leverage AI to scale personalized phishing and automate vulnerability exploitation, the window for human-only response is closing.

At Critical Start, we believe in a containment-first approach. By isolating assets the moment a threat is detected—even if it temporarily affects a user—we stop the lateral movement that leads to a full-scale breach.