Endpoint security is the practice of protecting devices that connect to a business network or access its applications and data from cyber threats. It combines security software, device management, policies and monitoring to prevent attacks, detect suspicious activity and respond when a device is compromised.
An endpoint can be a laptop, desktop computer, smartphone, tablet, server, virtual machine, Internet of Things device or another network-connected system.
This guide was reviewed on.
Endpoint Security at a Glance
The table below groups endpoint security into eight common control areas.
| Area | What it does |
|---|---|
| Antivirus and anti-malware | Detects, blocks and removes malicious software |
| Endpoint firewall | Controls unwanted network connections to and from a device |
| Endpoint detection and response, or EDR | Monitors activity, detects threats and supports investigation and remediation |
| Patch and vulnerability management | Identifies outdated software and helps fix exploitable weaknesses |
| Encryption | Protects data if a device is lost, stolen or accessed without authorization |
| Mobile device management, or MDM | Applies security settings to smartphones, tablets and other mobile devices |
| Application control | Restricts unauthorized or dangerous applications |
| Device compliance | Checks whether devices meet security requirements before they access systems |
How Does Endpoint Security Work?
Endpoint security protects devices through several connected steps:
- Identify devices and users. Security teams maintain an inventory of laptops, servers, mobile devices, virtual machines and other endpoints.
- Apply security controls. These controls can include malware protection, firewalls, disk encryption, secure configurations, application restrictions and account protection.
- Monitor activity. Endpoint tools collect information about processes, applications, logins, network connections, file changes and other device events.
- Detect suspicious behavior. Security systems look for known malware, unusual activity, exploitation attempts and other indicators of compromise.
- Respond to threats. Administrators can isolate a device, terminate a malicious process, quarantine a file, block an application or investigate the incident.
- Verify device health. Security teams check whether endpoints are patched, encrypted, properly configured and compliant with company policy.
NIST describes endpoint protection as a combination of strategy, technology and governance that protects endpoints and their data from threats. Its recommended capabilities include host firewalls, malware protection, vulnerability mitigation, host intrusion protection and unified endpoint management.
What Does Endpoint Security Protect Against?
Endpoint security can help defend against:
- Malware, ransomware and spyware
- Malicious email attachments and downloads
- Unauthorized applications
- Exploitation of unpatched software
- Credential theft and suspicious account activity
- Unauthorized remote access
- Malicious scripts and processes
- Data loss from lost or stolen devices
- Lateral movement between compromised systems
- Insecure or unmanaged devices accessing business resources
Endpoint protection does not remove every cyber risk. A compromised user account, cloud application or vulnerable network service can still lead to an incident even when endpoint software is installed.
What Is the Difference Between Endpoint Security and Antivirus?
Antivirus is one component of endpoint security. Endpoint security is the broader program that protects, manages and monitors the entire device.
Traditional antivirus mainly scans for malicious files and known malware patterns. Endpoint security platforms can also include:
- Behavioral threat detection
- Firewall management
- Device encryption
- Vulnerability assessment
- Application and script control
- Security policy enforcement
- Centralized reporting
- Threat investigation
- Automated response
- Device compliance checks
Microsoft, for example, groups antivirus, disk encryption, firewall, endpoint detection and response, attack surface reduction, application control and account protection under endpoint security policy management in Intune.
What Are EPP and EDR?
Endpoint Protection Platform, or EPP
An Endpoint Protection Platform, or EPP, focuses mainly on prevention. It typically combines antivirus, anti-malware, firewall, exploit protection, application control and other preventive controls.
EPP is designed to stop threats before they execute or spread.
Endpoint Detection and Response, or EDR
Endpoint Detection and Response, or EDR, continuously monitors endpoint activity to identify, investigate and respond to threats.
EDR tools collect security telemetry such as running processes, application activity, logins, file changes, network connections and permission changes. Security teams use this information to reconstruct an attack and determine what happened.
An EDR system may allow an administrator to:
- Isolate a device from the network
- Stop a malicious process
- Quarantine a suspicious file
- Remove persistence mechanisms
- Search historical endpoint activity
- Identify affected users and devices
- Trigger remediation actions
EPP and EDR perform different jobs. EPP attempts to prevent or block threats, while EDR provides visibility and response capabilities when suspicious activity occurs.
What Are the Main Components of Endpoint Security?
Malware Protection
Malware protection scans files, applications and system activity for malicious behavior. It may use known signatures, behavioral analysis, machine learning or other detection techniques. When it identifies a threat, the software may block, disable or quarantine it.
Firewalls
A host firewall controls network traffic entering or leaving an endpoint. It can block connections that violate security rules and reduce exposure to malicious network traffic.
Patch and Vulnerability Management
Patch management identifies missing security updates and helps organizations remediate vulnerable operating systems, applications and device firmware. CISA recommends keeping internet-accessible systems up to date and replacing products that no longer receive security support.
Encryption
Full-disk encryption protects data stored on laptops, phones, removable drives and other devices. It is particularly important when a device is lost or stolen because unauthorized users may otherwise access locally stored information.
CISA recommends encrypting computers, mobile devices, hard drives, removable media and files.
Mobile Device Management
Mobile device management, or MDM, lets an organization centrally enforce security settings on smartphones and tablets. Typical controls include screen-lock requirements, encryption, application policies, remote wipe and device compliance checks.
Unified endpoint management, or UEM, extends centralized management across mobile and non-mobile operating systems.
Application Control
Application control limits which software, scripts and services can run on a device. This can reduce the risk from unauthorized applications, malicious scripts and unapproved tools.
Device Compliance
Device compliance policies determine whether an endpoint meets security requirements. A policy might require encryption, an approved operating system version, active malware protection and a screen lock before the device can access company data.
Why Is Endpoint Security Important?
Endpoints often store business data, credentials and applications while connecting directly to corporate services. A compromised endpoint can expose sensitive information or give an attacker a foothold inside an organization.
Endpoint security helps an organization:
- Block malware, unauthorized applications, suspicious connections and unsafe configurations
- See what is running on devices and whether endpoints are vulnerable or compromised
- Contain affected devices and investigate incidents
Centralized logging improves detection because security teams can correlate endpoint events with activity from servers, firewalls, cloud services and identity systems. CISA recommends enabling and reviewing logs from endpoint devices and centralizing them where possible.
Is Endpoint Security the Same as Network Security?
No. Endpoint security protects individual devices, while network security protects the connections and infrastructure that link systems together.
| Security type | Primary focus | Examples |
|---|---|---|
| Endpoint security | Devices and their activity | Antivirus, EDR, encryption, host firewall |
| Network security | Traffic and network infrastructure | Network firewall, intrusion prevention, network segmentation |
| Identity security | Users, accounts and access rights | Multifactor authentication, privileged access management |
| Cloud security | Cloud workloads, services and data | Cloud posture management, workload protection |
These areas work together. For example, endpoint security can identify that a laptop is unpatched, identity security can restrict the user's access, and network security can limit the device's connections.
What Should a Business Look for in Endpoint Security Software?
A suitable endpoint security platform should provide:
- Coverage for the organization's operating systems and device types
- Centralized policy management
- Malware and ransomware protection
- EDR capabilities for investigation and response
- Vulnerability and patch visibility
- Encryption and firewall management
- Device isolation and remediation controls
- Integration with identity, email, cloud and security information systems
- Clear alert prioritization
- Support for remote and hybrid users
- Reporting for compliance and security audits
- Privacy, data retention and administrative controls that fit the organization's requirements
Organizations should also confirm whether the platform requires an agent on each endpoint, how much telemetry it collects and whether the security team has the capacity to investigate its alerts.
What Is the Simplest Definition of Endpoint Security?
Endpoint security is the protection and management of computers, phones, servers, virtual machines and other devices that connect to business systems. It combines prevention, monitoring, detection and response to reduce the risk of malware, unauthorized access, data loss and device compromise.
Installing antivirus is only one part of the job. An effective endpoint security program also needs supported and patched devices, encryption, access controls, centralized monitoring, device compliance and a practical incident response process.