2026-11-15
Unauthorized access at the provider of a LINE delivery tool: Keihan Holdings, Kintetsu Real Estate and Human Adjust say official-LINE friend data may have leaked — what registrants should do
On November 12, 2026, the provider of a cloud-based delivery tool for LINE official accounts announced that a third party had gained unauthorized access and obtained customer information of multiple companies and organizations. The access ran from 23:04 on November 9 to 09:17 on November 10, after the credentials of the provider's internal accounts used for operations and support were improperly obtained. Keihan Holdings (November 14), Kintetsu Real Estate (November 13) and Human Adjust (November 13) then published the scope for their own accounts. All counts are the current maximum and may change. The items centre on the LINE display name, profile image (URL) and LINE user ID. For Keihan Department Store, up to 28,000 people had at least one of name, phone number, email address, address, date of birth or gender affected, and for Human Adjust up to 58,510 people had at least one of similar items. The provider says the tool does not hold credit card information, and Keihan Holdings' notice also says the service does not hold it. Kintetsu Real Estate says it confirmed the friend-data leak, while Keihan Holdings and Human Adjust say it is possible. The companies' counts may overlap, so this article gives no total. As of November 15, 2026, the cause (how the credentials reached a third party) is under investigation. Our conclusion: even when a message arrives through an official LINE account, do not act on anything that asks you to enter information or pay through a link until you have checked it on the official website or app.