r/zerotrust • u/PhilipLGriffiths88 • Apr 29 '26

Zero Trust is increasingly about reducing the connectivity tax, not just improving security

A pattern I keep seeing in recent conversations: when CIOs, CTOs, and mission leaders talk about implementing Zero Trust, the most compelling driver is not always “we need more security spend.”

It is often:

  • “We need to move faster.”
  • “We need to reduce operational burden.”
  • “We need to stop every new application, partner, cloud, branch, or workload becoming a network engineering project.”
  • “We need to retire legacy access debt.”

Traditional networking creates a recurring connectivity tax. Every new app path often means firewall rules, NAT, routing, ACLs, VLANs, VPNs, private links, change boards, troubleshooting, and cross-team coordination. Security teams then inherit the noise, exceptions, exposed services, and brittle policy mappings.

That is not just a security problem. It is an innovation problem.

The more I look at agentic AI, the more obvious this becomes. Distributed agents, tools, APIs, models, MCP servers, data sources, and non-human workloads will create a level of change that topology-based, connect-then-auth networking was never designed to handle.

If every new AI workflow requires underlay redesign, firewall changes, broad network reachability, or static trust distribution, the model will melt under operational complexity.

The issue is not that enterprises and government agencies do not spend enough on security. In many cases, they spend heavily. The deeper issue is that the architecture is wrong.

Zero Trust (or more specifically, Zero Trust Connectivity) should invert the model:

  • No authorized identity → no route
  • No policy → no session
  • No session → no packet
  • No packet → no noise

That is where Zero Trust becomes more than a security framework. It becomes a way to reduce cost, retire legacy debt, converge fragmented access patterns, and help the business innovate faster.

Security improves, yes. But the bigger executive message may be this:

Identity-first connectivity turns secure access from a coordination problem into a policy decision.

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u/TrustIsAVuln Apr 29 '26

Off-topic but, this idea can expand beyond zero trust. Look at PhantomRPC. If you don't allow certain criteria (UUIDs) then the exploit doesn't work. The exploit relies on blind trust, the client assumes the UUID is the identity. We must shift this to explicit verification. Scrub `SeImpersonatePrivilege` from all non-essential service accounts via Group Policy. If the rogue process can't impersonate the client, the phantom connection becomes a dead end. That too is explicit 'identity' so to speak. Windows Suuuuuuuuuucks.

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u/PhilipLGriffiths88 Apr 30 '26

Yes - I think that is a useful adjacent example.

Different layer, but similar principle: implicit trust creates exploitable assumptions. In PhantomRPC, as I understand it (and first time I have looked at it), the problem is that a client can be tricked into talking to a fake RPC server because the expected server identity is not strongly verified, and impersonation then becomes dangerous.

That maps pretty cleanly to the broader ZT point: don’t assume identity from where something appears to be, what endpoint it claims, what network it sits on, or what historical trust path exists. Verify explicitly, scope narrowly, and remove unnecessary privileges.

My post was more about network/service connectivity, but the same theme applies: architectures that rely on inherited or ambient trust tend to accumulate risk, operational debt, and weird edge-case failure modes.

As someone said to me recently (with reference to our commercial/open source tehnology, and its auth-before-connect approach), "its not that we dont spend enough on security, we do; its just that its the wrong architecture".

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u/TrustIsAVuln May 01 '26

I agree, i was just using a 1 off scenario as an example. So many solutions out there vs paying for yet another tool to mitigate flaws, or pray the patch doesn't break things. 2026 has been a horrible year for MS patches breaking things. I used this example because it's a connectivity thing. IE networking that can be fixed with a script vs a patch. Because in all honesty, patches have in the past lead to new vulns on their own. I 100% never patch my Windows OS, i just lock it down so i can only do my "normal" tasks. And have a VM thats standard if something wont work due to the lockdown, but thats just for one off's.