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FIELD NOTE · E21 · Woori FIS · Feb 2026 – Oct 2026

A security review that tested requirements with numbers

In one line
I handled the security part of a review for adopting a new virtualization platform. I organized the requirements, tested them with numbers, and proposed a split of duties by traffic direction.
Highlights
  • Security requirements organized into common, physical, and logical
  • Platform capacity compared with the required level, in figures
  • Proposed a split of duties for north-south and east-west traffic
Tech
Security review · Network separation · Microsegmentation
Physical perimeter firewallNorth-SouthBetween outside and insideServer AServer BServer CEast-WestPlatform policyEach control takes the direction it handles best
The cross is complete. Each control takes the direction it handles best.

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