Best OnSystem Logic OnSystem Defender Alternatives & Competitors in 2026

QuellSecure Active Containment

Endpoint ransomware containment tool that stops encryption activity in real time.

DataSecure RDR

AI-powered ransomware detection & response agent with pre-execution blocking.

Abatis System

Kernel-level application whitelisting to block unauthorized code execution.

Bkav Pro

Windows antivirus & endpoint protection with AI detection and cloud scanning.

ESTsecurity ALYac

Free antivirus for Windows PCs with real-time monitoring & ransomware blocking.

AppLocker Guidance

A repository containing scripts and configuration files to help administrators implement Microsoft AppLocker for application whitelisting based on NSA security guidelines.

Ivanti Neurons for App Control

Application control and privilege management for endpoint security

Faronics Anti-Executable

Application whitelisting solution that blocks unauthorized executables

Intego Antivirus for Windows

Antivirus software for Windows PCs providing malware protection and web security

Hardentools

A Windows security hardening tool that disables potentially dangerous features in Windows 10/11 and common applications to reduce attack surface for individual users.

Deceptive Bytes Ransomware Defense

Deception-based endpoint agent preventing ransomware & malware pre-execution.

Deep Instinct DSX

Deep learning-based malware prevention platform for endpoint protection

Avira Antivirus Pro

Antivirus software for Windows and Mac with malware and ransomware protection

Cybereason Next-Generation AntiVirus

NGAV with 9 prevention layers for malware, ransomware & exploit protection

Absolute Ransomware Response

Monitors endpoint ransomware preparedness and expedites recovery efforts

Resecurity Endpoint Protection Platform

EPP consolidating 7 security technologies with AI-driven threat detection

Morphisec Automated Moving Target Defense

Automated Moving Target Defense tech for preventing ransomware & zero-days

Quick Heal Total Security

AI-powered antivirus with fraud detection, dark web monitoring & ransomware protection

Quick Heal Antivirus Pro

Antivirus software with AI-powered threat detection and dark web monitoring

360 High-Risk Vulnerability Immunization Tool V2.0

Tool that immunizes Windows systems against critical vulnerabilities

ThreatLocker Application Allowlisting

Application allowlisting that blocks unauthorized software by default

Arcabit

Endpoint security suite with AV, EDR, firewall, ransomware protection for Windows/Android.

PC Matic SuperShield

Application allowlisting security tool blocking unauthorized apps on endpoints.

PC Matic Pro

Allowlisting-based endpoint protection for SMBs against malware & ransomware.

PC Matic

Consumer antivirus using allowlist/default-deny to block malware and ransomware.

Total Defense Internet Security

Consumer antivirus & internet security suite for PCs, Macs, and mobiles.

Panda Security

Cybersecurity company offering endpoint protection & antivirus solutions.

Adaware Antivirus

Consumer antivirus and PC security suite with ad blocking and privacy tools.

Lyrie AI Security & Privacy Anti-Malware & Anti-AI

Multi-layered EPP/EDR for desktop & mobile with Anti-AI threat defense.

Bitdefender Antivirus Free

Free antivirus software for Windows, Android, and macOS devices

Windows 10/11 Hardening Script

Enhances Windows OS security through system modifications and settings adjustments.

Sophos Endpoint

AI-powered endpoint security with prevention-first approach and EDR capabilities

ESET Business Security

Endpoint protection platform for business and home users with antivirus.

NinjaOne Autonomous Patch Management

Automated patch management for Windows, macOS, Linux, and applications

Bitdefender GravityZone Small Business Security

Endpoint security solution for small businesses with ransomware protection

Bitdefender GravityZone Business Security

Endpoint protection platform for workstations, servers, and mobile devices

Bitdefender GravityZone Cloud MSP Security

Cloud-based endpoint security platform for MSPs with EDR, MDR, and XDR

Bitdefender GravityZone Security for Workstations

Endpoint protection for workstations with layered defense against malware

Deep Instinct DSX for Endpoints

Deep learning-based endpoint protection preventing zero-day threats

Emsisoft Emergency Kit

Portable malware scanner & remediation toolkit for infected Windows/Mac systems

Absolute Resilience

Endpoint resilience platform with self-healing apps and device recovery

VIPRE Endpoint Security Cloud

Cloud-based endpoint security platform with EDR and optional MDR services

Avast One

All-in-one security suite with antivirus, VPN, and scam protection

G DATA Total Security

Multi-platform security suite with antivirus, firewall, and data protection

Cynet Endpoint Security

Unified endpoint protection platform with EPP, EDR, and ESPM capabilities

ThreatDown Endpoint Protection

Multi-layered endpoint protection with next-gen AV and ransomware rollback

F-Secure Internet Security

Antivirus and internet security software for Windows, Mac, Android, and iOS

Kaseya 365 Endpoint

Unified endpoint mgmt platform with RMM, EDR, AV, backup & patch mgmt