LINE Yahoo* Leaks 7.1 Million User IDs from Mobile Games

Photo: ITmedia
Quick answer
LINE Yahoo* accidentally exposed the account IDs of 7.1 million mobile game users to a third-party ad tool, including those from LINE PokoPoko, LINE PokoPang Town, and LINE PokoPang.
LINE Yahoo* has reported a critical error resulting in the exposure of 7.1 million user IDs from its mobile games to a third-party advertising tool. The incident affected three popular applications: LINE PokoPoko, LINE PokoPang Town, and LINE PokoPang.
According to the company, the leak stemmed from a technical failure in the data processing system. While the statement emphasizes that sensitive information, such as passwords or payment details, was not compromised, the exact causes of the error and the nature of the exposed data remain undisclosed.
LINE Yahoo* representatives assured that the leaked data was not exploited for fraudulent purposes. Nonetheless, the incident raises concerns about the security of user data storage and transmission in major IT corporations. Users are advised to stay updated with developer notifications and take necessary steps to safeguard their accounts.
Common questions
- What data was exposed in the LINE Yahoo* incident?
- The leak involved user account IDs, including unique identifiers, shared with an external advertising tool. Sensitive data like passwords or payment details were not mentioned as compromised.
- Which apps were affected by the LINE Yahoo* data leak?
- The breach impacted three mobile games: LINE PokoPoko, LINE PokoPang Town, and LINE PokoPang, all developed by LINE Yahoo*.
- Were the leaked data used by malicious actors?
- LINE Yahoo* stated that the exposed data was not utilized by third parties. However, the exact cause of the error and preventive measures remain undisclosed.
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