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John Klimarchuk

PSIRT Incident Manager
Security Research and Operations

John Klimarchuk, CISSP 20512 works as a PSIRT Incident Manager in the Security Research and Operations organization at Cisco. In this role, John investigates, drives to resolution and writes associated security advisories for any reported vulnerability affecting Cisco products.

John has over 15 years of experience working with information technology and cyber security. John has designed, implemented, and supported numerous secure networks from Fortune 500 to startup companies.

Prior to his current role, he supported several product’s in Cisco's Technical Assistance Center (TAC).

John Klimarchuk's Articles