ZTNA: Your Security Escort Service

So, here’s the problem that starts at your firewall: Your security setup grants permission to a credentialed user to access your system. The credentials have been authenticated by several methods, and the user is free to move about your apps and files. It’s an everyday occurrence with our mobile, hybrid work systems. But what happens when someone either fools your authentication system or decides to go rogue? ZTNA gives you the ability to follow every user everywhere in your system.

ZTNA stands for Zero Trust Network Access, and it’s based on the premise that you can’t trust any user with unfettered access to your entire system. The rationale for a business to use ZTNA goes back to a security breach at Target more than 12 years ago, when the personal and credit card information for some 40 million customers was compromised. It’s become a classic case study for cybersecurity.

In short, hackers exploited a vulnerability in the system of a third-party contractor, a mechanical engineering firm. Using stolen credentials, the attackers gained access to Target’s systems, where they deployed malware on the company’s point-of-sale (POS) devices. This allowed them to capture sensitive customer information without being detected for several weeks.

Granted, firewall security systems have become much stronger over time, but for most of them, you can access any part of a system once you get past the firewall. ZTNA technology never stops tracking any user as long as they’re inside the network.

  • It grants access only to specific applications and files based on system admin’s determination of each user’s need to know.
  • It assumes every access attempt is risky (zero trust).
  • It continuously monitors a user’s activity and verifies it.

In operation, ZTNA sets up one-to-one connections between users and the resources they need. It’s similar to two people who need to contact each other by exchanging phone numbers. But unlike two people exchanging numbers, ZTNA connections need to be re-verified and recreated periodically.

The technology is also device-based, which is critical in our hybrid work world of BYOD (Bring Your Own Device). ZTNA can incorporate the risk and security posture of devices as factors in access decisions. It does this by running software on the device itself (sort of like a license plate reader) or by analyzing network traffic to and from the device.

While there are variations of ZTNA technology, the bottom line is that the protection of your data – and your clients’ and customers’ data – is priceless. This is where we can help. Call us – 973-433-6676 – or email us to talk about your security needs, your workforce’s access needs and your administrative needs.

Is ‘Zero Trust’ in Your Future?

The words “zero trust” in Zero Trust Network Access (ZTNA) are probably appropriate in a time when it seems like we don’t trust anybody about anything. ZTNA is being touted as a replacement for VPNs (Virtual Private Networks), especially for remote business needs. It could be more effective, but small businesses will need to jump through hoops.

ZTNA is a technology designed to limit who can access a network and where in the network they can go. The limits are important. For example, anyone who can access a Microsoft 365 network as a global administrator can effectively play God; they can do ANYTHING.

The goal of a ZTNA is to keep out false gods. Its proponents tout the following benefits:

  • Invisible infrastructure: ZTNA allows users to access applications without connecting them to the corporate network, thereby eliminating risk to the network.
  • More control and visibility: Managing ZTNA solutions is easy with a centralized admin portal with granular controls. Managers can see everything and create access policies for user groups or individual users.
  • Simpler app segmentation: Because ZTNA isn’t tied to the network, organizations can segment access down to individual applications instead of complex network segmentation.

Proponents further contend ZTNA is faster and more convenient than VPNs, offer better security, and are easier to manage. Gartner, a technology and research consultancy for large corporations and government, predicts its client base will largely phase out VPNs for ZTNA.

If you’re a small business or nonprofit organization that deals with large companies and government agencies, you may need to learn how to live in the world of ZTNA at the very least. If you want to adopt for your own use, you’ll need to answer some risk/reward questions:

  • Do you need a Ft. Knox type of defense system?
  • Are you willing to build new access systems to maintain your current business process?
  • Are you willing to take on the learning-curve risks of implementing a new security system?

There are no cookie-cutter solutions to changing your security measures. Call us – 973-433-6676 – or email us to discuss the specifics of ZTNA, especially if you need to use it to comply with another organization’s directive. We can help you design and implement a plan that minimizes your risk as best as possible.