Kakao Pay Securities said on the 25th that it conducted an "IT disaster response drill" at dawn on the 23rd, assuming a large-scale disaster situation. The goal was to check stability so that transaction services would not be interrupted even if an internet data center (IDC) is shut down.
The drill was carried out on the assumption that one of the two data centers would be completely paralyzed by flooding, among other causes. It replicated in full the worst-case scenario in which an entire center stops, not a simple system error.
The drill ran for about five hours from 3 a.m. to 8 a.m. on the 23rd, with about 40 employees from the Kakao Pay and Kakao Pay Securities technology teams participating. Kakao Pay Securities uses an "active-active" dualization method that operates two data centers simultaneously. This structure allows the other center to immediately take over operations if one site experiences a failure.
The company said, "Even in the actual drill, switchover occurred without downtime, ensuring business continuity in transaction and inquiry services, and we identified some improvement points that we plan to address."
Through this drill, the company also reviewed response speed and collaboration systems for each disaster scenario, and derived additional improvement tasks by analyzing time required by stage and recovery quality. Going forward, it plans to expand the scope of drills to verification of a "triple safety net system," including the cloud.
A Kakao Pay Securities official said, "We will continue to strengthen our technical safety net by conducting regular drills and applying a variety of scenarios."