Endpoint security in 2026: EDR, device management and the devices left out

An endpoint is any device that connects to company systems: laptops, desktops, servers, phones, tablets and, increasingly, virtual machines and containers. Endpoint security is the set of tools and practices that keep those devices from becoming the way in.

From antivirus to EDR

Traditional antivirus blocks known malicious files. Endpoint detection and response (EDR) records activity on the device, such as processes, network connections and changes, detects suspicious behavior, and lets the security team isolate a device or investigate remotely. Extended detection and response (XDR) combines endpoint data with email, identity, cloud and network signals in one console.

For a company without a 24-hour security team, managed detection and response (MDR) services monitor EDR alerts and respond on your behalf.

The basics still decide most outcomes

EDR catches attacks in progress. Device management and patching stop many from starting. CIS's Implementation Group 1 safeguards include anti-malware on all devices, automatic patching, encryption on laptops and mobile devices, and automatic screen locks. A device management platform such as Microsoft Intune or Jamf is how those settings get applied and kept in place.

The gaps attackers use

Verizon's 2026 Data Breach Investigations Report found exploited vulnerabilities are now the top initial access route. Many of those exploits target edge devices, such as VPN gateways and firewalls, which can't run EDR and must be patched quickly.

Phones are the other gap. Verizon found mobile phishing gets click rates 40% higher than email phishing. Many companies manage laptops closely but let staff reach email and business apps from unmanaged phones.

Personal computers used for work, contractor devices and unmanaged servers make up the rest. Conditional access, which allows sign-in only from managed, healthy devices, closes much of this gap.