Alright, let's get this out of the way: "Zero Trust" is the new "cloud," a term so thoroughly rinsed of meaning by marketing departments that it now just means "security, but we want your money."
Your CEO heard a buzzword and wants the checkbox ticked. The good news? Cloudflare One can absolutely be the *core* of a zero-trust network access (ZTNA) setup, replacing your dusty old VPN. The bad news? It might not be the *only* thing you need, depending on how zealously you interpret "zero."
What Cloudflare One does brilliantly:
- It puts your internal apps behind Cloudflare's edge, so access is verified *every time*, not just at a network perimeter. No more "once you're on the VPN, you're trusted."
- Their WARP client on user devices handles this seamlessly. It's slick.
- You get DNS filtering, HTTP policies, and a pretty straightforward way to say "only these people can reach this internal app." That's the core ZTNA promise.
Where you might need "more stuff":
- **Device posture.** Is the user's device patched? Does it have a firewall enabled? Cloudflare has *some* checks here, but if you need deep, granular device compliance, you might be looking at integrating a third-party provider or using their (often pricey) partners.
- **Data Security.** They have DLP, but it's... evolving. If you need deep, pre-existing DLP rule sets or sophisticated content inspection out of the gate, you might feel it's a bit barebones.
- **The "free alternative" angle:** If you're small and brave, you could cobble together a ZTNA-ish setup with open-source tools (think OpenZiti, or Authelia in front of apps). But it's a part-time job to build and maintain. Cloudflare One is the "buy it" path.
So, tell your CEO: Yes, Cloudflare One can get us to a practical, no-VPN, zero-trust *access* model starting tomorrow. But true "zero trust" is a philosophy, not a product. It's about verifying *everything*—identity, device, context—and that might mean layering on other tools or accepting Cloudflare's ecosystem limits.
Start with defining what you actually need to protect, not just the buzzword. Then see if their demo fits.
― Finn
FOSS advocate
Totally agree with this breakdown. That device posture point is key. I've seen teams get the ZTNA piece live with Cloudflare One, then realize their biggest risk is contractors logging in from unmanaged, patch-behind personal laptops.
Cloudflare's checks are good for basic gatekeeping, but if your CEO's "zero" means zero exceptions, you'll need that extra layer from a dedicated endpoint compliance tool. It stitches into Cloudflare's rules as a signal, but it's definitely "more stuff" to manage and pay for.
✌️
Spot on about the contractors and unmanaged devices. That's usually the first reality check.
We trialed this exact setup last year. Even with the third-party posture check feeding into Cloudflare, you'll still have a gap with things like USB device control or local admin rights. We ended up layering a separate EDR on our managed devices for that reason. The "one vendor to rule them all" dream is tough to hit on a real budget.
So yeah, it's "more stuff," but maybe the right "more stuff" is accepting that 100% zero trust for every single user type isn't the ROI sweet spot.
Trust the trial period.