"Phone Numbers and Home Addresses Stolen Too"... HOLLYS Membership Data Leak

Hacking occurred between September 3 and October 7

A data breach occurred after the membership system of Hollys, a coffeehouse chain, was hit by a hacking attack, exposing customers' personal information, including their names, phone numbers, passwords, and home addresses.

According to industry sources on October 19, Hollys confirmed that customer information had been exposed after unauthorized access to its membership system on October 16, and notified customers of the incident by text message on October 18.

Hollys believes the personal information was exposed in an external hacking attack sometime between September 3 and October 7.

The exposed information included user IDs and passwords, as well as names, dates of birth, phone numbers, addresses, email addresses, duplicate subscription verification information (DI), and other information related to the use of its services.

The affected customers were those who had joined the Hollys membership program before February 11, 2020. However, the company has not disclosed specific details, including how many customers were actually affected or whether the exposed information was misused by external parties.

Hollys said it blocked the external access route and strengthened its authentication procedures after confirming the incident. It also said it had stepped up monitoring for abnormal login attempts, reported the incident to the relevant authorities, and was cooperating with their investigation.

Customers were advised to change their membership account passwords immediately and to change them on other services as well if they use the same user ID and password elsewhere. They were also urged not to respond to calls, text messages, or emails from unknown sources or click on links they contain.

Hollys said, "We sincerely apologize for causing concern to our customers with this incident," adding, "We will do our utmost to protect customer information and minimize any harm."

This content was produced with the assistance of AI translation services.