Theoretically, it is a simple choice. It is preferable to opt for full SASE over ZTNA. If you have to choose between a full cybersecurity suite and an anti-malware software, all-around capabilities makes sense, because ZTNA is a core capability of SASE. SASE even extends security by combining ZTNA with networking (SD-WAN) and other security functions, like SWG, CASB, DLP, and FwaaS, under a single, cloud-native service fabric. But both technologies are becoming divergent choices for enterprises. Why?
The technologies’ capabilities mean that some organizations will go all the way and add the entire SASE experience to their stack, while some will opt just for ZTNA. It is all about their IT environments. In simpler words, while both are useful for the current trend of remote and distributed work, SASE is primarily meant for convergence, while ZTNA thrives on specialization. This is one of the primary drivers behind the divergence, which will define vendor strategies, buyer segmentation, and market growth in the coming year(s). But needs are not the only thing driving the divergence. The other factors are pretty much the same issues currently haunting the security sector.
Sofia Ali, Associate Director & Principal Analyst, QKS Group, agrees. “the debate between ZTNA and SASE isn’t really about which is better, it’s about what each company needs. ZTNA works best for businesses that want fast, identity-based access for remote users, while SASE fits those that want one platform to manage both networking and security together. In the coming years, companies will need to decide whether to focus on simpler access or full network transformation to secure their hybrid and cloud environments.”
Remote work is a key factor. While it was an outlier before 2020, it became the new norm with the pandemic. And while companies are now trying their best to get the employees back to office now, it may cause unintended consequences. Clearly, hybrid work can be expected to continue for some more time, even if a sizeable chunk of remote jobs may go away due to the return to office policies. Thus, companies are soon expected to reach a crossroads in how they secure distributed workforces and hybrid infrastructures. The present uncertainty is another key factor. The economic headwinds and operational realities have revealed limits to full convergence. Large enterprises, especially those with global SD-WAN or branch networks, still need the network-centric scalability that SASE offers. On the other hand, mid-sized and cloud-native businesses favor identity-centric ZTNA solutions that deliver faster ROI and simpler rollouts. The market is also being shaped by platform consolidation, vendor specialization, and rising cost sensitivity, factors that are pushing buyers to choose strategic depth over breadth. As a result, 2025–26 is becoming the inflection point where enterprises must decide whether to modernize through network transformation or agile access control. This is a choice that will define their security architecture for years to come.
What are the key differences? Here is a handy table:
| Aspect | SASE (Network-Centric) | ZTNA (Identity-Centric) |
| Primary Goal | Converge networking + security | Enforce least-privilege access |
| Deployment Vector | Cloud edge / SD-WAN backbone | Endpoint or identity gateway |
| Core Components | SWG, CASB, FWaaS, ZTNA | ZTNA, IAM, Device Trust, SDP |
| Strengths | Global scalability, unified policy | Granular user access, quick ROI |
| Limitations | High integration cost | Limited coverage for unmanaged devices |
The divergence in action
The companies opting for network-first SASE include some heavy hitters. Cisco is clearly opting for network-centric SASE by fusing Secure Access with ThousandEyes and Splunk to give one management and assurance plane for branch, campus, and remote users. Palo Alto Networks is doing the same through Prisma SASE 4.0, secure browser, and 5G SASE for service providers, all framed as a single cloud-delivered edge fabric.
Regarding Identity/app-first ZTNA services, Zscaler (ZPA), Cloudflare One, and Cisco Secure Access are pushing access that starts with user/app context, not the network path. Their updates in 2025 emphasize private-app access, SaaS access policies, and device-aware controls that can be deployed in hours, making them ideal for SaaS-heavy or midmarket environments that either do not or need more funds for a full network redesign.
| Vendor | Domain Focus | Why Consider |
| Palo Alto Networks (Prisma SASE) | SASE + core network security | Strong in infrastructure-centric enterprises, integrates NGFW to SASE transition. |
| Fortinet (FortiSASE) | SASE with strong hardware/hybrid pedigree | Good if you have on-prem hardware legacy and want unified control. |
| Cato Networks | Cloud-native SASE | Early mover in cloud-first SASE; strong single-vendor appeal for global distributed operations. |
| Zscaler | Cloud-centric SASE & ZTNA | Identity-centric, strong for SaaS/remote-first environments; good for transition toward ZTNA strategy. |
| Check Point Software Technologies (Harmony SASE) | SASE/ZTNA hybrid offerings | Offers a platform positioned for both identity-access and network control; potential for dual-mode strategy. |
| Netskope | SSE/SASE with strong cloud security stack | Fits enterprises with heavy cloud/SaaS workloads and leaning toward ZTNA-first approach. |
Technically, while ZTNS is a part of SASE, we are bound to increasingly witness a divergence as companies weigh their requirements and budgets. Priorities will decide deployment in the future.