Zero Trust — deny by default, permit by exception.

Stop chasing yesterday’s malware. With ThreatLocker allowlisting, Ringfencing™ and Zero Trust principles, only software you have approved can run — full stop.

The Zero Trust pillars

Never trust. Always verify.

Zero Trust replaces "inside vs outside the firewall" with continuous verification of every user, device and app.

🚫

Application allowlisting

Only approved applications and scripts can execute. Ransomware can’t run if it can’t run.

🛡️

Ringfencing™

Even legitimate apps (Word, PowerShell, Acrobat) are restricted in what they can talk to.

📦

Storage control

Granular control over removable media, USBs, cloud-sync clients and external drives.

🪪

Identity-first

Continuous Conditional Access, phishing-resistant MFA, device compliance and just-in-time admin.

🧩

Microsegmentation

Limit east-west traffic. A compromised endpoint can’t pivot across the network.

🔁

Continuous verification

Every request re-evaluated — never trust a session because it was authenticated an hour ago.

ThreatLocker rollout

A ThreatLocker rollout that doesn’t break the business.

Allowlisting can be painful — done wrong. We use ThreatLocker’s learning mode plus a structured 60-day rollout so the day you go to "deny by default" is a non-event for your users.

  • Learning modeTwo weeks of monitoring — we build the allowlist from what your business actually uses.
  • Pilot groupRoll out to IT and admins first. Iron out exceptions before reaching end-users.
  • Phased enforcementWave-by-wave to user groups, with a 60-second self-service approval workflow.
  • 24/7 approval deskWhen a user requests new software, our SOC reviews and decides — fast.
  • Audit-ready evidenceEvery approval and denial logged for ISO 27001 / Cyber Essentials Plus.
Firstnet Portal
FAQ

Frequently asked questions

Will users be locked out of stuff they need?

No. The 60-day onboarding builds an allowlist from real usage. New requests are reviewed in minutes — not days.

Is ThreatLocker only for Windows?

It’s strongest on Windows, with growing macOS support. We complement it with Defender/SentinelOne on other platforms.

How is this different from antivirus or EDR?

AV/EDR detect bad. ThreatLocker only allows known good — a fundamentally stronger model that defeats zero-days.

Do we still need EDR if we have ThreatLocker?

Yes — defence in depth. EDR catches behaviour ThreatLocker doesn’t, and gives you the forensic record.

Ready to take IT off your plate?

Free, no-pressure scoping call with a Firstnet Direct specialist.