Phone Number Relationship Database

In 2025, a significant data breach occurred in China. The incident involved the leakage of customer use the SIM(phone number) on the same device(IMEI), containing 100,000,008 records. The leaked data specifically included personal information such as phone numbers and unique device identifiers, known as International Mobile Equipment Identity (IMEIs). This exposure raised concerns about privacy and the potential misuse of the data, as individuals telecom details and device connections were compromised. The incident underlined the importance of data security measures in protecting personal information and the need for stricter regulations to prevent future breaches of this scale.