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GS Construction has confirmed that personal information of residents in some of its apartments was leaked due to an external unauthorized access to the apartment community facility reservation management system. The leaked data includes names, mobile phone numbers, addresses, passwords, and RF card numbers used for building access. The company stated that the hacking occurred on the afternoon of October 28 and is currently assessing the scale of the damage. The incident has raised concerns as similar hacking attacks have recently affected the financial and communication sectors. (citations_ids:,,,)