Wu said that according to Ming Pao, hackers claimed to sell Hong Kong people's personal information, including phone numbers, names, ID numbers and addresses, on the "dark web", claiming that the data leakage was related to the Home Affairs Department and border control, and attached data samples. The price was US$1,000 (about HK$7,800) for every 100,000 items of information, and US$5,000 (about HK$39,000) for 100,000 items of information, requiring transactions in virtual currency. The Home Affairs Department said yesterday that it had noticed that someone was selling citizens' information claimed to be obtained from the department's system on an online platform, clarified that there was no data leakage, and had reported to the police. Ming Pao randomly called the victims on the sample list, and at least two people confirmed that the information was correct. Some network security experts believe that the Home Affairs Department should conduct a thorough investigation, including understanding whether employees or suppliers handled the information improperly, resulting in the leakage of information.