Control What Runs. Restrict What It Can Do.
ThreatLocker is a Zero Trust endpoint platform built on default deny: software runs only if it’s explicitly approved. Ark deploys those controls, builds the policies behind them, and manages them day to day.
Zero Trust endpoint control, implemented and managed by Ark.
Two Different Questions About the Same File.
“Does this look malicious?”
Antivirus and EDR compare behavior to what’s known to be bad. That still earns its place, but new threats are built to look like nothing seen before, and recognition can arrive after execution has begun.
“Has this been explicitly approved?”
No recognition required. If software isn’t on the approved list, it doesn’t run. The decision happens before execution, which shrinks what detection has to catch in the first place.
What Happens When Something Tries to Run.
Four Exposures. Four Explicit Controls.
The Exposure
The Control
Unknown Software Can Execute
Anything a user downloads, or an attacker drops, can run before anyone assesses the risk.
Application Allowlisting
Only approved software, scripts, and installers run. Everything else is denied by default.
Trusted Apps Have Too Much Access
A legitimate application can be exploited, and by default it can touch files, networks, and programs it never needs.
Ringfencing™
Approved applications are limited to what they genuinely need, so an exploited app can’t roam.
Standing Admin Rights
Permanent local administrator accounts are broad, always on, and rarely reviewed, which is exactly what attackers look for.
Elevation Control
Applications elevate when policy allows. People don’t carry admin rights around all day.
Somebody Has to Maintain It
Default deny only works if every new app, update, and exception gets a decision, and lean teams have no spare hours.
Managed by Ark
Ark builds the baseline policies and runs the approvals, exceptions, and tuning day to day.
Six Controls, One Policy Engine.
What Runs
Every application, script, and installer is checked against an explicit list before it executes.
Unknown software, including most ransomware payloads, is stopped before it starts.
What It Can Reach
Policy decides which files, network destinations, other programs, and removable media each approved app may touch.
One compromised endpoint or trusted app can’t become access to everything else.
Who Has Privilege
Specific applications get controlled elevation when they need it; people work from standard accounts.
Standing local-admin accounts largely disappear from daily operations.
Visibility across all three. Telemetry from every control is monitored for unusual patterns, so when something does need investigating, the evidence is already collected.
The Platform Is Half the Answer.
Default deny lives or dies on policy accuracy, and that accuracy is the work Ark takes on.
The Security Platform
- The Zero Trust platform and its six controls
- The policy engine, research, and product engineering
- The management portal and platform ecosystem
- Platform-level support behind Ark’s operations
The Operating Practice
- Discovery of the software your business actually uses
- Deployment and learning mode without disrupting work
- Baseline policies built from observed behavior
- Approval workflows for new software and exceptions
- Ongoing tuning as your software estate changes
- Microsoft Entra group and policy alignment
- Reporting, platform reviews, and escalation paths
Scope is set per engagement: some clients hand Ark the full operation, others co-manage. These controls also sit inside a wider practice covering identity, Microsoft 365 security, and response: see Ark’s cybersecurity services.
See the Partnership in Action
ThreatLocker + Ark Technology Consultants: Two tales of one ransomware case
Watch on YouTube →ThreatLocker Provides the Controls. Ark Turns Them Into a Managed Security Program.
See how Ark combines these controls with identity, Microsoft security, and detection, plus what a production pilot on your own endpoints looks like.