Two teens charged after Seoul bike app breach exposed 4.6M users

Two South Korean teenagers were this week charged with breaching Seoul’s public bike service, Ttareungyi. Identified only as Persons A and B, the pair, now of high school age, allegedly carried out the attack on Ttareungyi in June 2024 and stole data belonging to most of the service’s registered users. Officials said the leak affected 4.62 million people and with Ttareungyi reportedly having around 5 million registered users, that amounts to roughly 90 percent of all users.

Person A carried out the attack that gained access to the data trove, while Person B was the one who suggested downloading it. The information included user IDs, phone numbers, home addresses, email addresses, dates of birth, genders, and weights, according to The Register.