Zero Trust Remote Access (ZTNA) treats all access attempts as untrusted by default. But what actually makes Zero Trust different from traditional access control systems?

The answer is simple: Zero Trust technology uses three best practices:

1. Least privilege access: Only give users the access and privileges they need to do their jobs. This minimizes the potential damage from compromised credentials or insider threats.

2. Continuous verification: Authenticate before each session and continue to verify during the session by also checking device posture. This makes sure endpoints meet security standards before granting or maintaining access.

3. Assume breach mentality: If you’re on the offensive, assume that the system you’re defending has already been breached. So build your security in a way that you can contain and isolate an internal threat before it goes too far.

Zero Trust Remote Access takes all of these security best practices to the next level with continuous session monitoring. With traditional security, you prove your identity, and the door opens, locking behind you. With ZTNA, that door is always watching and will close when suspicious activity is detected.

Traditional VPNs have been around for a long time, and while they’ve worked well for many organizations, they’re starting to show their age. VPNs, or Virtual Private Networks, give users essentially free rein of your network once they authenticate. Think of it like opening the front door to your office building and assuming the person walking in only goes to authorized areas.

What makes this even more concerning is that VPN compromise has become one of the most common initial access vectors for threat actors. When attackers get access to VPN credentials, they immediately inherit that same broad network access.  

Zero Trust network access solutions are the opposite, offering a completely different and more secure alternative to VPNs. ZTNA provides users with application-level access, as opposed to network access. They connect to specific applications they need to access, and nothing more. The difference is significant:

• No lateral movement: If an attacker compromises credentials, they can’t roam freely in your network.

• Better visibility: You have full visibility on who accesses what, when, and from where.

• Reduced attack surface: The fewer exposed resources you have, the smaller the attack surface.

VPNs make a tunnel to your network. ZTNA makes a direct connection to the applications themselves. The result is a much tighter security posture.

ZTNA vs VPN at a glance:

These benefits of ZTNA security are obvious, but Zero Trust has additional advantages that directly improve access control. The enterprises that have already deployed Zero Trust have documented results and measurable value from their investments.

• Eliminated lateral movement: If a hacker compromises an endpoint, they cannot pivot to other systems because they need to access resources within a Zero Trust architecture, each with new authentication and authorization.

• Enhanced identity controls: With Zero Trust, identity becomes your first line of defense. Multi-factor authentication (MFA), biometrics, and behavioral analytics provide dynamic, contextually aware security controls that adjust in real-time based on the level of risk.

• Compliance made easier: Zero Trust automatically logs and monitors all activity, making audit compliance a by-product. Access logs can provide the audit trails needed to demonstrate compliance with SOC 2, HIPAA, GDPR, and other industry requirements and standards.

• Improved user experience: Zero Trust can actually improve the experience for legitimate users if it’s implemented correctly. Seamless, single sign-on, and context-aware access can help reduce friction and offer a better user experience for users accessing resources from anywhere.

• Improved visibility for security teams: Zero Trust gives IT teams real-time visibility into user activity, endpoint health, and application access so they can detect and remediate issues more quickly. In fact, a study shows 61% of organizations actively monitor access changes in real-time, which aligns perfectly with ZTNA’s continuous verification principle.

Don’t get overconfident in the Zero Trust’s ability to protect. As awesome as ZTNA can be, it isn’t a silver bullet and can’t be your only security solution. We’ve written about the limits of Zero Trust, and it’s true even in the best of cases—your perfect ZTNA implementation is still going to have other avenues for an advanced attacker to get in via social engineering, zero days, or supply chain attacks.

Zero Trust is one piece of your security stack (maybe THE most important), but it isn’t the only piece. You still need endpoint detection and response (EDR), you still need security awareness training, and you still need to practice good security hygiene.

Organizations considering Zero Trust implementation need to recognize and address certain realities: 

• Integration complexity: Traditional infrastructure wasn't designed with Zero Trust principles. Legacy apps, on-premises systems, and third-party tools can pose implementation challenges.

• Cultural resistance: Zero Trust necessitates a paradigm shift in security mindset. Users who expect broad network access may resist tighter controls. Transparent communication of changes by IT teams is crucial.

• Resource requirements: Time, expertise, and budget are needed to implement Zero Trust. Smaller organizations may find the initial investment daunting, although cloud-based ZTNA solutions are democratizing their adoption.

• Performance concerns: Some organizations fear that additional authentication steps will hurt productivity. This is a valid consideration, but modern solutions are designed to minimize performance impact.

Hybrid environments that combine on-premises infrastructure with cloud applications challenge IT teams to enforce policies carefully across systems. Despite these complexities, 84% of organizations are actively pursuing Zero Trust strategies specifically for cloud security, demonstrating that the benefits outweigh the implementation hurdles.

The Zero Trust adoption process and ZTNA adoption are not a one-time effort. As a dynamic and continuous approach to cybersecurity, Zero Trust adoption is strategic and long-term. CISA outlines five maturity levels in Zero Trust adoption, starting from Zero Trust adoption to optimization. So, it’s key to note that each phase is an important step towards optimizing Zero Trust Security and that ZTNA adoption is done progressively alongside an organization’s needs and their cloud strategy.

Here's a practical roadmap for implementing Zero Trust Remote Access:

1. Start with inventory: Map your applications, data, and user access patterns before defending them. 

2. Implement strong identity controls: MFA is essential. Passwordless and risk-based authentication methods (which step up authentication requirements based on user behavior and context) are also worth considering.

3. Segment your network: Break your environment into smaller, manageable zones and create policies dictating how applications and users interact across them.

4. Deploy ZTNA solutions incrementally: Focus initially on high-risk applications or user groups, and use the experience to inform future rollouts. A phased approach can minimize disruption and allow for fine-tuning.

5. Train your team: Zero Trust is as much about people as technology. Ensure your IT team understands the principles, and help end users understand how their workflow might change.

6. Monitor and adapt: Use Zero Trust visibility to fine-tune policies and controls, identify patterns, and address friction points. Continual improvement is key. 

Zero Trust, coupled with a managed ITDR service, provides stronger visibility and faster response capabilities across your entire environment, ensuring continuous protection even as new threats emerge.

Zero Trust Remote Access is an essential component of evolving cybersecurity programs. By shifting away from implicit trust and instead verifying each access request, organizations can securely enable remote workforces.

Zero Trust is most effective when it’s part of a holistic security solution. Huntress offers a platform that combines the benefits of ZTNA with its full suite of cybersecurity tools:

• Managed EDR (Endpoint Detection and Response):Continuous monitoring and rapid threat response across endpoints.

• Managed ITDR (Identity Threat Detection and Response): Protects identities in Microsoft 365 and prevents account takeovers.

• Managed SIEM (Security Information and Event Management): Centralized logging and real-time incident detection.

• Managed Security Awareness Training: Trains teams to recognize and prevent cyber threats.

Together, these solutions give you visibility and control across your environment, ensuring that your Zero Trust implementation works in concert with a complete cybersecurity program.

Are you ready to modernize your approach to remote security? Contact Huntress and see how our managed detection, response, and identity security solutions can protect your distributed workforce. Ask for a demo today.