Insights & Analysis
The PortSys Security Blog
Zero Trust access control insights, threat analysis, and security best practices.
Why Do You Still Have a VPN?
Not as a criticism. As a genuine question – because the answer describes your access architecture more accurately than most assessments will.
Stop the Madness
Count them. How many separate products currently have a say in whether a given person can reach a given application?
Deciding Is Not Enforcing
Authenticate, then abdicate – and what that costs you two hours into a session.
The VPN Is the Cheapest Part
Grant first, filter later – and pay for the difference every year.
You Do Not Own the Device
So stop trying to trust it, and decide how much it matters.
Your Access Log Is an Authentication Log
It records who was admitted. The auditor is asking what they reached.
Nobody Owns the List
A problem that has never been written down in one place cannot be costed – and what cannot be costed never competes for budget.
Compliant Is Not Covered
The audit asks whether the control exists. It rarely asks how much of the estate it reaches.
The End User Experience with TAC: Simpler Access, Zero Frustration
Most security tools are built for the security team. TAC is built for everyone. A look at what it actually feels like to use TAC day-to-day — and why that experience translates directly into productivity, user satisfaction, and better security outcomes.
The AI Agent Identity Problem Nobody Is Talking About
Enterprises are deploying AI agents at scale. Almost none of them are governing what those agents can access — or even know what they are doing.
Why Most Zero Trust Deployments Fail on Legacy Apps
Every enterprise has applications that were built before zero trust existed. Here is why modern identity platforms cannot protect them — and what to do about it.
47 Open Ports to One: A CISO’s Guide to Attack Surface Reduction
The average enterprise firewall has dozens of open inbound ports. Each one is an attack vector. Here is how to close them — and why most tools cannot.