Best OnSystem Logic OnSystem Defender Alternatives & Competitors in 2026

Abatis System

Kernel-level application whitelisting to block unauthorized code execution.

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.

ESET Server Security

Server security solution protecting file servers, SharePoint, and Linux systems

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

odix TrueCDR™ Kiosk

Secure kiosk for sanitizing USB & uploaded files using CDR technology

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

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 Server Security

Zero trust app allowlisting-based server endpoint protection for Windows.

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

Sandboxie Plus

Open-source sandbox isolation software for running untrusted apps on Windows.

Windows 10/11 Hardening Script

Enhances Windows OS security through system modifications and settings adjustments.

Bitdefender GravityZone Platform

Unified security platform with EPP, EDR, XDR, and MDR capabilities

Sophos Endpoint

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

Vali Cyber ZeroLock

Linux security platform for federal/national security environments

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

Avira System Speedup Pro

PC optimization tool for cleaning junk files, improving performance & privacy

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

GrammaTech SySense

Firmware malware detection & prevention using hypervisor-based monitoring

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