System Design & Architecture-focused Fullstack Engineer with extensive experience in scripting (Js/Python/Bash) and core Computer Science algorithms. Skilled in diagnosing critical performance bottlenecks, evidenced by achieving less than 50ms frame variance in multi-device XR environments through custom drift-correction algorithms.
Recently, there have been many tips on how to use ChatGPT effectively on the Internet. This skill is called Prompt Engineering. Some people are very good at using ChatGPT, but in the case of people who are not familiar with IT or have little exper...
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In April 2025, SK Telecom faced a major security breach involving unauthorized access to USIM data. This article analyzes the timeline, response gaps, and key risk management lessons from the incident.