Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

On February 28, 2026, the United States, in coordination with Israel, launched a large-scale military campaign against Iran known as Operation Epic Fury, marking a significant escalation in direct hostilities. The operation involved coordinated air, missile, naval, and cyber strikes targeting Iranian military and nuclear facilities across the country. Iran retaliated with ballistic missile and drone strikes targeting Israeli territory and U.S.

On February 24, 2026, sooperset, the mcp-atlassian project maintainer, released fixes for a critical vulnerability in mcp-atlassian, tracked as CVE-2026-27825. The flaw arises from missing directory confinement and inadequate path traversal validation in the Confluence attachment download tools which could allow a remote (network-adjacent), unauthenticated threat actor to write files to arbitrary paths, enabling local privilege escalation and remote code execution.

At Arctic Wolf, we believe the future of cybersecurity is built on AI guided by human expertise. Staying at the forefront of security operations means not just adopting new technology but deeply understanding how and where it should be applied.

On February 25, 2026, Cisco released fixes for a maximum severity authentication bypass vulnerability in Cisco Catalyst SD-WAN Controller (formerly vSmart) and Cisco Catalyst SD-WAN Manager (formerly vManage), tracked as CVE-2026-20127. The flaw arises from a broken peering authentication mechanism in the control-plane authentication workflow. This vulnerability potentially allows a remote, unauthenticated threat actor to bypass authentication and obtain administrative privileges on an affected system.

This post reflects the author’s views as of the publication date and contains forward-looking statements and opinions about technology trends. Actual outcomes may differ based on attacker behavior, customer environments, and broader market and regulatory developments. Last Friday’s announcement from Anthropic introducing tied to its Claude platform sparked immediate speculation about what AI-driven secure development could mean for cybersecurity.

By Dan Schiappa, President, Technology and Services, Arctic Wolf Security operations is undergoing a fundamental shift. For years, organizations have focused primarily on detecting and responding to threats after they occur. But as attack surfaces expand across endpoints, cloud, identity, SaaS, and infrastructure, that reactive model is no longer enough.

A notable statistic continues to shape the cybersecurity research landscape: the human element remains involved in roughly 60% of all confirmed breaches. That’s according to the 2025 Verizon Data Breach Investigations Report (DBIR), which found that social engineering actions like phishing, pretexting, and credential misuse are consistently intertwined with today’s most common attack paths, even when they are not the first visible technical vector.

Since our previous security bulletin, Arctic Wolf has observed malicious activities in the wild tied to suspected exploitation of CVE-2026-1731 of self-hosted BeyondTrust Remote Support and Privileged Remote Access deployments. We are sharing threat intelligence related to this activity to help defenders protect against this campaign. CVE-2026-1731 allows unauthenticated remote threat actors to execute operating system commands in the context of the site user via specially crafted requests.

Today, the government of Canada issued a statement announcing that Arctic Wolf will continue to co-chair the Counter Ransomware Initiative Public-Private Sector Advisory Panel in 2026, alongside Public Safety Canada and BlackBerry. The panel will also include member organizations such as Ensign InfoSecurity, the Institute for Security and Technology, Microsoft, Palo Alto Networks, and the Royal United Service Institute.

On February 6, 2026, Fortinet released fixes for a critical vulnerability in FortiClientEMS, tracked as CVE-2026-21643. The flaw arises from improper neutralization of special elements used in SQL commands in the FortiClientEMS GUI (web interface) that can allow an unauthenticated remote threat actor to execute unauthorized code or commands.