Tianyancha.com

In early 2023 reports emerged regarding a significant data exposure involving Tianyancha a prominent Chinese business data provider. The incident involved the scraping and potential leak of millions of user records and company profiles through unsecured API endpoints. The exposed data included sensitive user identification details and professional contact information. Security researchers observed that the data was circulating on various dark web forums where actors claimed to have accessed the backend database containing registration details of millions of corporate professionals and business owners.