A least-privilege program for multi-vendor firewalls
Least privilege is easy to assert and hard to sustain across Palo Alto, Fortinet, Cisco, and cloud security groups. A program turns it from a slogan into a measurable, recurring discipline.
Every security policy claims least privilege. Few estates can show it holding across four firewall vendors and a handful of cloud accounts, each with its own object model and its own idea of what "any" means. A program closes the gap between the claim and the evidence.
Baseline before you optimize
You cannot reduce what you cannot see. The first step is a normalized inventory of every rule and object across vendors, with over-permissioned and unused rules flagged on common terms. That baseline turns least privilege from an opinion into a number you can move.
Recertify on a cadence, not on a panic
Access that was justified a year ago is rarely justified today. A recurring recertification cycle — owners attest to the rules they still need, the rest are queued for removal — keeps the rulebase converging on least privilege instead of accreting. Pre-change validation stops new over-permission from entering in the first place.
The outcome leadership cares about is a trend line: over-permissioned rules down, unused rules retired, every removal traceable to an owner and a date. That is a program, not a project, and it is what survives the next audit.
Common questions.
OpClerk normalizes rules and objects from each vendor into one model, then scores over-permission and usage on common terms — so a Palo Alto rule and a Fortinet policy are compared on the same scale.
See OpClerk against your own policy.
A scoped walkthrough mapping a sample of your firewall policy to the controls you report on — inside your perimeter, nothing leaves.