Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

EDR Killers let attackers blind endpoint protection before the real attack begins, and Sophos Endpoint stops them with several layers that are on by default. Most people picture a cyberattack as something loud: files encrypting, screens locking, a ransom note. But the attacks that do real damage usually start quietly. Before an attacker steals data or deploys ransomware, they try to make sure nobody is watching. That means dealing with the endpoint protection on the device first.

Bring AI out of the shadows with visibility and control that help your organization adopt AI securely. When we introduced Sophos AI Defense in July, we focused on a challenge facing organizations everywhere: AI adoption is accelerating, often faster than security and IT teams can see or control it. New AI tools, embedded capabilities, and shadow AI are creating blind spots around where AI is being used and what information it can access.

AI tools have made it remarkably easy for a company to expose its own data: None of these actions seem malicious, but each one moves sensitive information somewhere the security team cannot see. This new era of "move fast and break things”, a phrase famously coined by Mark Zuckerberg in the early Facebook days, benefits attackers. Company data now flows through more places, more third parties, and more delegated credentials.

This article was first published on LinkedIn. In Minority Report, the Department of Precrime promised certainty. Three precognitives saw the future, the system picked the consensus, and police arrested people for murders they hadn't yet committed. The whole machine depended on one buried secret: sometimes the precogs disagreed, and the dissenting vision, the minority report, was quietly deleted. The system held together as long as the precogs agreed, but broke when it removed its own doubt.

Active Directory defenses must combine identity fundamentals, telemetry, and rapid response as attackers reach the environment’s first breach attempt within a median of 11 hours.

In modern network environments, maintaining both operational efficiency and strong security controls requires careful design and planning. One of the more common challenges Sophos Professional Services encounters, especially during firewall upgrades or redesigns, is asymmetric routing.

On October 4, 2026, Citrix disclosed a high-severity (CVSS score of 8.7) memory overflow vulnerability (CVE-2026-88779) affecting Citrix NetScaler ADC and Citrix NetScaler Gateway deployments that are configured as either a SAML Service Provider (SP) or SAML Identity Provider (IdP). Successful exploitation can cause a denial of service (DoS) condition, potentially disrupting authentication services and remote access functionality.

Sophos has been named a Leader in the IDC MarketScape for Worldwide Modern Endpoint Security for Enterprises 2026, recognizing the strength of our prevention-first approach and stopping AI-era threats as early as possible. Attackers using frontier AI models can now find vulnerabilities and generate exploits faster than organizations can patch them. And when malicious code is already running before an alert fires, detection alone is too late.

Take control of your security outcomes. Sophos CISO Advantage is now generally available to the market, giving CISOs and security teams without a CISO the solution they need to build, manage, and improve a compliance-driven cybersecurity program. In July, we introduced Sophos CISO Advantage, explaining how it enables organizations and Managed Service Providers (MSPs) to understand cyber risk, prioritize what matters most, and demonstrate measurable improvement over time.