Seoul Bike Service Leaks 4.5 Million Records

Personal information of about 4.5 million members of Seoul's municipal public bike-sharing service Ttareungyi was believed leaked in April 2024, Yonhap reported on Friday. Leaked fields reportedly included names, phone numbers, birthdates and addresses, while resident registration numbers were not collected; police have opened an investigation and suspect hackers, raising fraud and secondary-harm concerns.
Key Points
- 1Affects about 4.5 million Ttareungyi members; leaked fields include phone numbers, birthdates, addresses
- 2Prompts police probe after Yonhap discovery; authorities suspect hacker-driven breach from April 2024
- 3Exposes users to fraud and secondary harm; municipal operator and city coordinate response and notifications
Scoring Rationale
Large Yonhap-reported leak affecting 4.5 million users raises serious privacy risk, but scope limited to one municipal service and investigation ongoing.
Sources
Public references used for this report.
Practice interview problems based on real data
1,625 SQL & Python problems across 15 industry datasets — the exact type of data you work with.
Try 250 free problems
