Allowlisting inverts the security model: instead of detecting bad software, only approved software runs. Done well, it stops ransomware protection threats and unknown malware regardless of signatures. Done badly, it breaks the business in week one.
ThreatLocker scores highest for making default-deny operable, Airlock Digital for allowlisting-specialist engineering, and Microsoft’s built-in WDAC costs nothing if you can carry the operational load. Here are the ten best, scored.
The 2026 Allowlisting Scorecard
| Rank | Tool | Policy automation (30%) | Operability (25%) | Coverage (20%) | Ecosystem (15%) | Value (10%) | Total |
| 1 | ThreatLocker | 9 | 9 | 9 | 8 | 8 | 8.8 |
| 2 | Airlock Digital | 9 | 9 | 8 | 7 | 8 | 8.5 |
| 3 | Microsoft (WDAC/AppLocker) | 6 | 5 | 8 | 9 | 10 | 7.2 |
| 4 | Heimdal Application Control | 8 | 8 | 8 | 7 | 7 | 7.8 |
| 5 | VMware Carbon Black (App Control) | 8 | 7 | 8 | 7 | 6 | 7.4 |
| 6 | Ivanti | 8 | 7 | 8 | 8 | 7 | 7.6 |
| 7 | BeyondTrust | 8 | 7 | 8 | 8 | 6 | 7.5 |
| 8 | Trellix | 7 | 6 | 8 | 8 | 6 | 7.0 |
| 9 | Fortinet | 7 | 7 | 7 | 8 | 8 | 7.3 |
| 10 | ColorTokens | 7 | 7 | 7 | 6 | 7 | 6.9 |
Weighted averages rounded to one decimal. Editorial assessments of documented capability, not benchmark results.
How We Scored
Research-based evaluation; no lab testing performed or claimed. Policy automation (30%) carries the heaviest weight because allowlisting lives or dies on how new and updated software gets approved — manual approval queues kill these projects. Operability (25%) covers learning mode, exception handling, and help-desk burden.
Coverage (20%): executables, scripts, DLLs, installers, and storage/network control beyond bare executables. Ecosystem (15%) and value (10%) round it out.
Why Allowlisting Is Back
Ransomware made default-deny relevant again. Traditional malware protection solutions relying on signature and behaviour-based detection can occasionally be evaded; a policy that only lets approved binaries execute cannot be talked around by a novel packer.
CISA and other national agencies consistently list application control among the most effective mitigations and consistently note it is under-deployed because of operational fear.
The tools below exist to remove that fear, and the scorecard measures how well they do it.
The Ten, Scored
1. ThreatLocker — 8.8/10 · best overall
Why: ThreatLocker turned allowlisting from a consulting project into a product. Learning mode builds the baseline, built-in application definitions track vendor updates automatically, and Ringfencing limits what approved applications can do ensuring that endpoints adhere to strict endpoint security best practices (an approved app can run but not call PowerShell or reach the internet).
Strengths: update tracking removes most approval-queue pain; Ringfencing is genuinely differentiated; storage and elevation control in the same agent; strong MSP model; responsive support with 24/7 approval assistance.
Trade-offs: subscription pricing accumulates across modules; the console rewards time invested; smaller enterprise reference base than the platform giants.
Verify: current module packaging.
Image ALT: ThreatLocker allowlisting policy and Ringfencing controls
2. Airlock Digital — 8.5/10 · best allowlisting specialist
Why: An Australian vendor that does one thing with unusual depth. Airlock’s workflow — baseline, trusted publishers, file reputation, and one-click approvals reflects years of purely allowlisting engineering, extending into preventative endpoint security and governance
while execution metadata gives auditors exactly what frameworks like Australia’s Essential Eight demand.
Strengths: the cleanest approval workflow in the category; strong compliance evidence for Essential Eight and similar frameworks; efficient agent; genuinely fast deployment for the category.
Trade-offs: narrower platform than the suites this is allowlisting, not an endpoint platform; smaller presence outside Australia and the US public sector orbit.
Image ALT: Airlock Digital allowlisting baseline and approval workflow
3. Heimdal Application Control — 7.9/10 · best for automated application control
Why: Heimdal Application Control uses application allowlisting to control which software can execute, helping organizations block unauthorized applications while allowing trusted software to run.
Its centralized management and policy-based controls simplify application approval and enforcement across endpoints.
Strengths: automated application allowlisting; centralized policy management; application blocking and approval controls; integrates with Heimdal’s broader endpoint security platform.
Trade-offs: broader Heimdal platform may be more than needed for organizations seeking a standalone allowlisting tool; pricing is typically quote-based; advanced policies may require configuration and tuning.
Image ALT: Heimdal Application Control application allowlisting and policy management
4. Ivanti — 7.6/10 · best within an Ivanti estate
Why: Ivanti Application Control brings trusted-ownership checking files installed by trusted administrators run, everything else doesn’t which drastically reduces list maintenance in Windows estates and coordinates cleanly with automated patch management software.
Strengths: trusted ownership model is elegant and low-maintenance; integrates with Ivanti UEM and patching; privilege elevation in the same product.
Trade-offs: Ivanti’s exploited-vulnerability record makes platform-security due diligence and patch SLAs mandatory evaluation items; deepest value inside an Ivanti estate.
Image ALT: Ivanti Application Control trusted ownership policy
5. BeyondTrust — 7.5/10 · best alternative privilege-led option
Why:Like CyberArk, BeyondTrust pairs application control with privilege management in Endpoint Privilege Management, addressing how attackers exploit privileged access with strong policy granularity and a large PAM install base.
Strengths: mature least-privilege plus application control; QuickStart policy templates shorten deployment; strong Unix/Linux story alongside Windows.
Trade-offs: platform purchase rather than point tool; quote-based enterprise pricing; console depth requires investment.
Image ALT: BeyondTrust Endpoint Privilege Management application rules
6. VMware Carbon Black App Control — 7.4/10 · strongest lockdown pedigree
Why: The former Bit9 remains a reference product for high-assurance lockdown — fixed-function systems, regulated servers, air-gapped environments — sitting alongside premier advanced endpoint security tools with mature change windows and reputation services.
Strengths: proven in the most demanding lockdown deployments; strong server story; flexible enforcement levels.
Trade-offs: now inside Broadcom following the VMware acquisition — confirm current product naming, roadmap, and licensing before committing; administration is heavyweight by modern standards.
Image ALT: Carbon Black App Control lockdown policy enforcement
7. Fortinet — 7.3/10 · best value inside the Fabric
Why: Application control via FortiClient and FortiGate delivers meaningful control at low incremental cost for existing Fortinet estates, complementing endpoint security EDR vs XDR architectures through application-category control.
Strengths: low cost inside the Fabric; network-level app control complements endpoint policy; simple operationally.
Trade-offs: not granular binary allowlisting in the ThreatLocker/Airlock sense; Fortinet’s KEV-listed vulnerability history requires patch discipline.
Image ALT: Fortinet application control policy in Security Fabric
8. Microsoft (WDAC/AppLocker) — 7.2/10 · best value overall
Why: App Control for Business (formerly WDAC) and AppLocker ship free in Windows. WDAC is genuinely robust — kernel-enforced, tamper-resistant — and aligns directly with established patch management strategies for Windows. A perfect value score reflects that no additional licence is required.
Strengths: free; kernel-level enforcement stronger than most third-party agents; Intune-manageable; managed-installer and ISG options reduce list maintenance.
Trade-offs: the lowest operability score here for a reason — policy authoring is complex, tooling is fragmented, and there is no vendor-maintained application catalogue tracking updates for you. Realistic for teams with strong Windows engineering; punishing without it.
Verify: current naming (App Control for Business) and Intune management scope.
Image ALT: Windows App Control for Business policy in Intune
9. Trellix — 7.0/10 · best in a Trellix estate
Why: Trellix Application Control carries the McAfee heritage product forward, strong on servers and fixed-function systems, and integrated with the broader Trellix estate and centralized enterprise SOC platforms.
Strengths: solid server and legacy OS coverage; change-control integration; fits existing Trellix deployments.
Trade-offs: portfolio consolidation warrants a roadmap conversation; administration feels dated; standalone buyers should compare the specialists first.
Image ALT: Trellix Application Control server lockdown policy
10. ColorTokens — 6.9/10 · allowlisting adjacent to segmentation
Why: ColorTokens pairs process-level control with its platform ranking among the top microsegmentation tools for network security, which suits buyers wanting workload lockdown and lateral-movement control together.
Strengths: combined segmentation and application control story; cloud-delivered management.
Trade-offs: allowlisting depth trails the specialists; smaller ecosystem; verify current packaging.
Image ALT: ColorTokens process-level control with microsegmentation
Buyer’s Guide
Run learning mode for weeks, not days. Every failed allowlisting project shares the same cause: enforcement before the baseline was complete. Include month-end processes and the awkward departmental apps before you flip to enforce.
Judge the approval workflow above all. Ask each vendor: a user needs a new app at 4pm Friday — walk me through exactly what happens, who clicks what, and how long it takes. That answer is the product.
Insist on script and DLL coverage. Executable-only control misses PowerShell, script-based, and DLL side-loading attacks — which is much of what attackers actually do now.
Check what happens when the agent can’t reach the cloud. Default-deny that fails open is theatre; default-deny that fails closed on a broken connector is an outage. Understand the offline behaviour precisely.
Common mistakes: deploying to servers first (do workstations, learn, then servers); no break-glass procedure for emergencies; and treating allowlisting as a replacement for EDR and patching rather than a layer above them.
Frequently Asked Questions
What is application allowlisting?
Application allowlisting permits only approved software to execute and blocks everything else by default, inverting the detection model. Because unknown malware is simply never approved, it stops novel ransomware and living-off-the-land binaries that signature and behaviour-based tools can miss.
What is the best application allowlisting tool in 2026?
ThreatLocker leads for making default-deny operable at scale, with automatic update tracking and Ringfencing controls.
Airlock Digital is the strongest pure allowlisting specialist, Microsoft’s built-in App Control for Business the best value for teams with strong Windows engineering, and CyberArk or BeyondTrust the picks when combining allowlisting with privilege management.
Is Windows WDAC good enough instead of paying?
Technically, often yes — kernel-enforced App Control for Business is more tamper-resistant than many paid agents. Operationally, it demands significant Windows engineering skill and provides no vendor-maintained application catalogue, so updates and exceptions are your problem.
Teams without that capacity buy ThreatLocker or Airlock precisely to outsource the maintenance burden.
Does allowlisting stop ransomware?
It is one of the most effective controls available, because an unapproved ransomware binary simply cannot execute.
Attackers respond with living-off-the-land techniques using approved tools, which is why script control, Ringfencing-style containment of approved applications, and privilege management alongside allowlisting matter.
How disruptive is allowlisting to deploy?
With modern tools, far less than its reputation suggests — learning modes build baselines automatically and vendor catalogues track updates.
Plan weeks of monitoring before enforcement, a clear exception workflow, and a phased rollout. The disruption stories almost all trace to skipping those steps.
How much do allowlisting tools cost?
Per endpoint per year, mostly quote-based; ThreatLocker and Airlock are typically mid-single-digit to low-double-digit monthly per endpoint in practice, but confirm directly.
Microsoft’s WDAC/AppLocker is free in Windows. Budget more for the operational workload than the licence.
Bottom Line
ThreatLocker is the strongest all-round choice and the reason allowlisting stopped being scary; Airlock Digital is the specialist alternative with the cleanest workflow. Microsoft’s App Control for Business is free and genuinely strong if — and only if — you have the Windows engineering depth to run it.
Pair whichever you choose with privilege management (CyberArk and BeyondTrust do both in one agent), keep learning mode running until the baseline is truly complete, and write the break-glass procedure before you enforce.
Related reading on Cyber Security News:
• Top 10 Best Endpoint Privilege Management (EPM) Tools
• Top 10 Best Ransomware Protection Solutions
• Top 10 Best Endpoint Detection & Response (EDR) Solutions
• Top 10 Best Antivirus (Endpoint Protection) Software for Business
• Top 10 Best Privileged Access Management (PAM) Tools
• Top 10 Best Patch Management Software
• Top 10 Best Device Control & USB Security Tools
• Top 10 Best Server Security Solutions
• Top 10 Best Unified Endpoint Management (UEM) Solutions
• Top 10 Best Zero Trust Security Vendors
• Top 10 Best Microsegmentation Tools
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