Retour 
Behind tremendous interest in zero trust security and its crucial role in the SASE journey, many practitioners choose zero trust network access (ZTNA) as their first step toward transformation.
If you are planning a ZTNA project, here are some ideas and tips that can increase your odds of success and provide a smooth transition from legacy remote access VPNs to ZTNA.
Know your organization and how ZTNA will benefit multiple teams
Have a clear understanding of your organization’s goals and objectives. It helps to be explicit, as zero trust and ZTNA may mean different things to different teams. Is the project initiated from the networking team, or the security team, or is it a joint project? What are the business drivers and the desired outcomes? Is there a broad zero trust or SASE initiative from your CIO or CISO for security transformation? Is it to support remote and hybrid work? Or to support cloud migration?
Different teams may have different aspirations
Zero trust is increasingly a shared project that unifies the security and networking teams around common goals and outcomes. This is not a surprise considering ZTNA delivers benefits that, while different, are valuable to each team. For security teams, ZTNA solutions shrink the digital attack surface, reduce the liability of VPNs and DMZs, and eliminate unauthorized lateral movement within your network. For networking teams, ZTNA can simplify network operations and routing, connect users directly to corporate resources regardless of where they are hosted (including in private data centers), and eliminate the need to hairpin network traffic through a cumbersome VPN concentrator.
Once you have a clear understanding of your organization’s goals and those of each individual team, you can identify the key use case to start. A detailed understanding of your users and applications—including your exposure to unmanaged (or “shadow IT”) applications will greatly assist this analysis.
Identify your first use cases
Identifying key use cases and selecting some quick wins is an easy way to build confidence in ZTNA projects.
Here are some common use cases:
- Employee remote access – Now that hybrid work is the new normal, this is the most common use case both for ZTNA and for SASE as a whole. If this is your primary first use case, it makes sense to start small with your ZTNA project and focus on one user group at a time, or one geographic location of your enterprise. You might want to start with corporate issued (managed) devices and later expand the scope to support employees using BOYD as well.
- Cloud migration – This is a great opportunity to leverage cloud-delivered ZTNA to connect employees directly to private applications hosted in the public environments, and to provide native DevOp access, using SSH or RDP without exposing the applications to the public internet. This will help you eliminate the headaches of setting up VPN virtual appliances, or routing traffic through your corporate data center and VPN concentrator only to send users to the cloud.
- Third-party access – Does your organization need to extend application access to third-party users, partners, suppliers, and contractors? It is risky to extend VPN access to third-parties where you don’t have clear visibility and often do not have control over their security practices. ZTNA allows you to enable application specific access, and no more.
ZTNA services like Netskope Private Access, support clientless access and can protect your sensitive data from being downloaded by a third-party, and/or to unmanaged devices such as employees using BYOD. With the same centralized DLP controls, you are able to extend access, enable collaboration with third-parties, and at the same time enforce data protection to prevent sensitive data from leaving your organization.
- VPN replacement – I view this more as an overall motivation rather than one specific use case. All of the use cases above can help chip away your reliance on remote access VPN. If your organizational goal is to replace VPNs, this will be a journey—a rewarding one. Moving from VPNs to ZTNA is not a simple