Key Takeaways
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-
- Architecture: Defguard's modern microservice design eliminates the single point of failure inherent in FortiGate's monolithic architecture. -
- Resilience: Documented malware like COATHANGER can survive patches on FortiGate. Defguard's architecture is designed to resist and contain such persistent threats. -
- Transparency: Defguard is fully open-source, allowing for public verification. Fortinet's solution is a closed-source, proprietary system. -
- Cost: Defguard's pricing is transparent and subscription-based, while Fortinet's model often includes numerous hidden costs for hardware, support, and essential features. -
Legacy Hardware vs. Modern Software Architecture
+See how Defguard's Enterprise VPN solution architecture stacks up against the limitations of traditional, all-in-one security appliances. Select a topic below to compare.
+ +Traditional Appliance (FortiGate)
+Whether you use the official FortiClient or a client wrapper like OpenFortiVPN, you are still tethered to the slow, vulnerable SSL VPN protocol on a monolithic appliance. It's a single point of failure.
+Defguard Architecture
+Defguard is not a client wrapper. It is a complete Protocol-Based Solution that replaces the vulnerable SSL VPN stack with a modern WireGuard® Gateway. Built on a secure, stateless architecture, it isolates components and keeps the Core Control Plane physically inaccessible from the internet, eliminating the attack surface.
+[ DMZ ]
[ Core Control Plane ] ↔ [ Internal Network ]
Fortinet Pricing & Hardware Lock-in
+-
+
- Expensive hardware purchases required. +
- Security updates often demand costly equipment upgrades. +
- Creates a cycle of vendor lock-in and escalating costs. +
Defguard's Freedom
+-
+
- A true FortiGate VPN alternative. Completely hardware and system-agnostic. +
- Deploy on any hardware or cloud provider (AWS, GCP, Azure). +
- Software-defined for maximum flexibility and cost-efficiency. +
The FortiGate Black Box
+-
+
- Closed-source code prevents inspection. +
- No way to verify security claims or patches. +
- Impossible to confirm if attackers persist after a breach. +
- You must trust the vendor's promises completely. +
Defguard's Inspectability & Verifiability
+-
+
- Full inspectability with open-source code. +
- Transparent development, testing, and release process. +
- Public penetration testing reports. +
- Full system access enables comprehensive monitoring. +
FortiClient's Costly 2FA
+Typically offers basic 2FA, often with additional costs for proprietary tokens or services.
+-
+
- Basic 2FA (e.g., TOTP) +
Defguard's True Multi-Factor Authentication
+Provides true, layered Multi-Factor Authentication out-of-the-box for robust security.
+-
+
- Biometry +
- TOTP +
- Email Codes +
- WireGuard PSK +
FortiGate's Limited SSO
+Support for SSO/IdP is often limited to a few major enterprise providers, restricting your choices.
+Supported: ADFS, Microsoft Entra ID, Okta, Google Workspace.
+Defguard's Broad Integration
+Extensive support for on-premise and cloud-based SSO/IdP solutions via OpenID Connect.
+Supported: LDAP, Active Directory, Google Workspace, Azure EntraID, Okta, JumpCloud, Zitadel, ...and more.
+The ROI of Switching: Engineered for Speed & Security
+Replace legacy friction with measurable performance. Defguard upgrades your infrastructure with a modern, auditable stack that respects your team's time.
+Eliminate VPN Headaches for Your Entire Team
+Defguard provides the security, control, and flexibility your team needs, no matter your role.
+- Easy Deployment: Hardware-agnostic software for flexible installations.
- Simplified Management: Easy upgrades and seamless integration with existing tools.
- Full Visibility: Comprehensive system and network monitoring on-device.
- Automated & Fast: Built on WireGuard for high performance and speed.
- Hybrid Cloud Ready: Deploy on-premise or in any major cloud environment.
- Flexible Integration: Extensive SSO/IdP support via OpenID Connect.
Engineered for the Modern Network
+Defguard is more than just a replacement—it's an upgrade designed for today's dynamic infrastructure demands.
+Trusted by Industry Leaders
+Organizations worldwide trust Defguard to secure their critical infrastructure and protect their digital assets.
+Defguard vs. Fortinet VPN: Architecture & Performance
+Architecture: Why the Fortinet Monolith is Slow
Fortinet's VPN solution relies on a traditional model where the FortiClient endpoint connects to a central FortiGate appliance. All traffic is funneled through a central FortiGate appliance. This monolithic architecture, where dozens of services are bundled into the FortiOS codebase, creates a single, massive point of @@ -268,9 +458,37 @@ const faqEntries = [
Defguard vs. Fortinet VPN: Security & Post-Breach Resilience
+Security: Vulnerabilities & The "Unpatchable" Risk (COATHANGER)
This is the most critical differentiator. Fortinet's security model has proven to be dangerously fragile against sophisticated threats.
@@ -296,7 +514,7 @@ const faqEntries = [Defguard vs. Fortinet: Authentication & Identity Management
+Identity: Native MFA vs. The FortiAuthenticator Trap
Fortinet requires a complex ecosystem for modern authentication, needing separate products like FortiAuthenticator for SSO and
FortiToken for MFA. This fragments security and inflates costs.
@@ -310,7 +528,7 @@ const faqEntries = [
Defguard uses a flexible, identity-based ACL system. Policies are tied to user identity, not static IP addresses, making them more secure and easier to manage than the complex rule sets on a centralized FortiGate appliance.
The choice between Fortinet and Defguard is a choice between two fundamentally different security philosophies.
The table below shows the real-world consequences of each architectural approach.
@@ -331,10 +549,15 @@ const faqEntries = [
+ Scaling remote access creates an "Empty Client" problem: distributing the app is easy, but securely distributing secrets is hard. Fortinet forces you to buy FortiClient EMS to solve this. Defguard solves it using the infrastructure you already own: Active Directory or Entra ID.
+
- Deploying Fortinet's VPN is a resource-intensive process involving FortiGate hardware and FortiClient EMS for management.
+ We offer true Zero-Touch Provisioning. Admins batch-generate tokens via API and sync them to user profiles. When you push the MSI via Intune or GPO, the client auto-detects the domain, retrieves the token, and pre-configures itself. Users launch the app and connect immediately: no emails, no copy-pasting, and no Helpdesk tickets.
- Defguard is designed for simplicity. To simplify evaluation, we provide a one-line install script to deploy a complete test instance, allowing you to get familiar with the solution's features quickly. For production-ready rollout, we support modern workflows with deployment options for Docker Compose, Terraform for AWS, and Kubernetes.
+ To simplify evaluation, we provide a one-line install script to deploy a complete test instance, allowing you to get familiar with the solution's features quickly. For production-ready rollout, we support modern workflows with deployment options for Docker Compose, Terraform for AWS, and Kubernetes.
Fortinet's pricing requires multiple, separate licenses for FortiGate hardware, FortiClient endpoints, MFA, SSO, and mandatory support contracts, leading to unforeseen costs.
Fortinet's VPN solution is a traditional VPN defined by its legacy architecture and a demonstrated history of critical security failures.
The FortiGate appliance's design allows for persistent compromises that survive patching – a risk modern businesses cannot afford.
@@ -401,8 +627,8 @@ const faqEntries = [
Stop patching a broken architecture. Move to a platform designed for the modern threat landscape.
Defguard vs. Fortinet: Policy Enforcement
+ Access Control: Identity-Based vs. Static IP Rules
The Strategic Difference: Fortinet vs. Defguard
+ Strategic Impact: Hardware Security vs. Software Agility
+ Security Principle
Legacy Appliance Approach (FortiGate)
- Modern Software Approach (Defguard)
+ Modern ZTNA Approach (Defguard)
+
ZTNA implementation
+ Perimeter-Based. Trust is assumed once connected. Even with "Fortinet ZTNA" features, the underlying architecture relies on a persistent tunnel that allows lateral movement.
+ Pure identity-first ZTNA: protocol-level MFA with dynamic session keys; no implicit trust, every session fully reauthenticated before tunnel establishment.
+
Attack Surface
Large, monolithic, and complex; a single vulnerability can lead to full device compromise, as repeatedly demonstrated by multiple critical CVEs.
@@ -363,19 +586,22 @@ const faqEntries = [
Initial Setup & Management
+ Management & Setup: Automated Provisioning vs. FortiClient EMS
+ Cost & Licensing
+ Pricing: Transparent Subscription vs. Hidden Licensing Fees
The Bottom Line
+ The Bottom Line: Why Modern Teams Switch