Rethinking VPNs vs SSE: The ANCAP Rating of Network Security.
July 1, 2026, Netskope-SSE
When you buy a car, you don’t just ask whether it has seatbelts. You look at its ANCAP safety rating. Airbags, collision avoidance and modern driver assistance systems matter because they reduce risk when something goes wrong, not just when everything goes right.
Network security works the same way.
VPNs and Security Service Edge (SSE) both encrypt data in transit, but encryption alone is the seatbelt. The real question is how much risk you’re exposed to once the connection is established.
Aiden Whiteman
A traditional VPN creates an encrypted tunnel and places the user onto the corporate network. Once authenticated, that user is largely trusted and can often access broad network segments. This model was designed for a time when applications lived in data centres and users worked from fixed locations. In a world of cloud apps, hybrid work and frequent credential compromise, that level of trust creates unnecessary exposure.
SSE takes a more modern approach. Instead of putting users on the network, it connects them only to the specific applications they are authorised to use. The network itself remains hidden. Access is based on identity and context rather than location, which is the foundation of Zero Trust Network Access and why it aligns so closely with modern security frameworks.
From a security perspective, this difference is critical. With VPNs, a compromised account can allow attackers to move laterally inside the network, and VPN gateways remain exposed targets on the internet. SSE dramatically reduces this attack surface by removing inbound network access and limiting each user’s reach to exactly what they need.
Encryption quality is often raised as a deciding factor, but again the analogy holds. Both VPNs and SSE use strong, approved cryptographic algorithms. Where problems have historically appeared are in key generation and protection. Some legacy VPN appliances have suffered from weak entropy, undermining otherwise sound encryption. Leading SSE platforms avoid this by using hardware security module backed cloud infrastructure by default, generating and protecting encryption keys in tamper-resistant environments.
Another important distinction is scope. A VPN is a single function. SSE is a consolidated security platform that typically covers secure web access, cloud application controls, data protection and advanced analytics. This is increasingly important as organisations rely on SaaS, third-party access and generative AI tools that sit well outside the original assumptions of VPN technology.
Choosing between VPN and SSE is less about whether the tunnel is encrypted and more about the overall safety rating of the architecture. A VPN will still get you from A to B, but SSE is built with modern safety systems designed to reduce impact when something inevitably goes wrong.
Encryption is the seatbelt. SSE is the five-star ANCAP rating.
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