Total Marriage Support: unauthorized access to its matchmaking event sites, with data of up to 910,795 people possibly leaked and 52 confirmed

1. 2025-05-19

   An expert investigation judged that unauthorized access to the site was likely from this day through July 1. [1]

2. 2025-06-24

   A user reported phishing emails from a fake domain closely resembling its own, and it began investigating. [1] [3]

3. 2025-07-14

   It announced the incident after reporting to the Personal Information Protection Commission and filing a damage report with the police. [1] [2]

The people covered registered or took part in the four services TMS Event Portal, Smile Stage, Fiore Party and Matching Party by July 1. The data includes name, nickname, date of birth, email address, phone number, and hobbies, tastes and lifestyle. The leak was confirmed for 52 people, and because the attack method made the actual number impossible to determine, it announced the maximum count it holds as the range. [1] [3]