Network access that assumes nothing and verifies everything.
Connect users to IP-layer resources — thick clients, legacy systems, network protocols — without putting your network on the internet.
- 25device check types_
- 21policy combinations_
- 0ports answering a scan_
- 202event log types_
What is ZTNA?
Zero Trust Network Access
Your identity is the network perimeter.
Zero Trust Network Access is the replacement architecture for the corporate VPN. Both solve the same surface problem — letting someone outside the office reach something inside it — but they solve it in opposite ways.
- No network to move acrossA tunnel is scoped to one resource. Two apps means two tunnels, each policy-checked on its own. Compromising a session yields exactly that session.
- Nothing answers a scanGateways run drop-all with Single Packet Authorization. Port scans return nothing at all, so there is no version to fingerprint ahead of patch day.
- The device is checked, every time25 posture check types across 144 named rules and 1,500+ OS combinations, evaluated before the tunnel opens and re-evaluated during the session.
- Built for what a browser cannot reachThick-client ERP front-ends, legacy client-server systems, custom TCP/UDP protocols, engineering tools. ZTAA is the application-layer sibling.
A stolen password should cost you one session, not the estate behind it.
The problem is not the login. It is everything after it.
Lateral movement
One phished credential on a VPN is a foothold on the whole segment. Attackers routinely pivot from an unimportant entry point to crown-jewel systems. ZTNA removes the network between them.
Visible attack surface
Every internet-facing IP is scanned within minutes of going live. VPN concentrators are among the most exploited devices on the internet — each CVE is a race against your patch window.
Scale and cost
Concentrator hardware sized for peak load, licensed per box, refreshed every few years. Remote workforce doubled? Buy more boxes. ZTNA is software: scaling is a configuration change.
Spot the threat. Make the call.
Hover the activity field — 5 threats are hiding among the dots. Find them, let InstaSafe lay out the evidence, then you decide what happens next.
How InstaSafe ZTNA actually works.
Seven mechanisms. Each one runs on every request — not a setting you enable once.
To the internet, your infrastructure does not exist.
Your gateways run a drop-all policy: any unauthorised packet is silently discarded. Port scans return nothing. Authorised users reach it through Single Packet Authorization — the gateway only answers callers that have already proven who they are.
0 hosts up · 0 ports answered. Drop-all plus Single Packet Authorization — the gateway only ever replies to a caller that has already proven who it is.
One session in, one session out.
Each authorised session gets its own encrypted tunnel scoped to one resource. Two apps means two tunnels, each independently policy-checked. Compromising one session yields exactly one session.
Your applications.
Your tunnels.
One session never becomes another.
Each authorised session gets its own encrypted tunnel scoped to a single resource. Two apps means two tunnels, each policy-checked on its own — so losing one loses exactly one.
Credentials say who. Binding says from what.
Sessions are tied to an approved device certificate. A valid password on an unapproved laptop fails at the device gate. Administrators review and approve devices before first use, and can revoke instantly.
Device BindingDevice Binding
ISThe user checked out. Is the laptop lying?
25 check types — OS version and patch level, antivirus presence and state, firewall status, disk encryption and more — evaluated against 144 named rules covering 1,500+ OS and device combinations. Posture drift mid-session can trigger risk actions.
Device PostureDevice Checks
ISProtected from the moment it boots.
The tunnel establishes at device boot, silently, via certificate. Users never forget to connect; security teams never depend on user behaviour.
Always-On
No login prompt, no “connect” step — the certificate brings the tunnel up while the desktop is still painting.
Valid here, now, and for this contract.
Geolocation, IP-range and time-window conditions per user group. A contractor's access can be valid 9–6 IST from India only, and expire with the contract.
Four conditions, one decision.
Every condition below is evaluated together, per session, before a packet reaches the app.
See all capabilities ↗
InstaSafeThis PCNotepadChromeAnyDeskEvery decision, answerable months later.
202 event types logged, 11 built-in report types, export in 7 SIEM formats. Who reached what, from which device, when, and what policy decided — for every session ever.
Every login, request and block streams to one live feed — and straight to your SIEM. When a user trips repeated failures, InstaSafe spots the pattern and locks the account before it becomes a breach.
- Live audit of every allow and deny
- Anomaly detection on failed-login bursts
- Device approvals and access requests in one queue
ZTNA specs, at a glance.
- LayerIP (L3/L4) — thick clients, protocols, legacy apps
- Gateway modelSoftware gateway, drop-all + SPA
- TunnelsPer-session, per-resource, encrypted
- Device trustBinding + posture25 checks / 144 rules
- AuthDirectory sync or built-in IdP · 6 MFA methods
- CompanionZTAA for application-layer access
- Context policyGeo, IP, time, risk — 21 combinations
- Risk engine12 triggers, 4 auto-actions
- Visibility202 events · 7 SIEM formats · 11 reports
- ClientWindows, macOS, Linux · Always-On optional
- 144named rules_
- 25device check types_
- 202event log types_
Access,not accessto everything.
InstaSafe ZTNA creates secure, per-session tunnels to the apps you choose. Nothing is exposed. Nothing is reachable by default.
Breach containment by architecture
No lateral surface to cross. One session compromised is one session lost.
Zero internet footprint
Blackened servers cannot be scanned or fingerprinted ahead of patch day.
VPN retirement without re-architecture
Runs alongside your VPN. Same apps, same AD groups, staged cutover, rollback intact.
so what does this replace
You already have a VPN. What exactly stops working?
nothing — it runs alongside yours through the migration↓//Ready when you are//
Ditch the VPN. Keep your apps invisible.
Runs alongside the VPN you have, app by app, until there is nothing left to switch off. Nothing to rack, no network to re-architect.
Regulated, air-gapped, or on-premise? See deployment options