Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

Artifacts and tooling for the new Enterprise MITRE ATT&CK matrix tactics, distilled from the field. This article is part of an ongoing series from Sophos frontline security operations specialists, sharing the expertise they use to strengthen our industry-leading Managed Detection and Response (MDR) service and defend customers against evolving AI Era threats. If you’ve opened the Enterprise ATT&CK matrix recently, you may have done a double-take. The familiar Defense Evasion column is gone.

On August 24, 2026, Counter Threat Unit (CTU) researchers observed an Exploit underground forum persona named “Optimus_Prime” advertising an uncensored AI subscription service named Luciferus. The persona joined Exploit on April 18, and their profile displays a “coding / coder” activity label. As of September 4, the persona has published 21 posts on the forum.

Reaction remains cybersecurity’s default posture. Rather than question that approach, the industry has focused on making it faster. The instinct is understandable. Cybersecurity has always been about understanding threats. What has changed is their sheer scale, and the growing gap between what organisations can see and what they can realistically act on. Somewhere along the way, we started calling faster detection, richer analysis and AI-powered response proactive security.

A critical security weakness (CVE-2026-84869) has been identified in the ConnectWise ScreenConnect client (prior to version 26.6.5), where missing authorization controls and improper privilege management allow file transfers and execution through active remote sessions without host confirmation.

Patches have now been released addressing two critical vulnerabilities: CVE-2026-85102, which affects Security Gateway and Spark Firewall, and CVE-2026-85103, which affects Security Gateway, Management Server, and Spark Firewall.

The European Union has made great strides to enhance cybersecurity over the past few years, with a comprehensive framework of core legislative acts designed to protect critical infrastructure. The EU Cyber Resilience Act, originally published as Regulation (EU) 2024/2847 on 20 November 2024, and entered into force on 10 December 2024, shifts the burden of proof so that manufacturers must now show their software is secure, not just claim it.