Qesh, a financial services provider in Brazil, has disclosed a data leak that has potentially compromised the personal information of customers who have registered their Pix keys with the company. The leaked data includes names, email addresses, phone numbers, and Pix key registration details. Qesh has stated that the leak was caused by a third-party vendor and that they are investigating the incident. Customers are advised to monitor their accounts for any suspicious activity and to report any unauthorized transactions immediately. Qesh has also recommended that customers change their Pix key registration details as a precautionary measure. The company has emphasized that the leak does not affect the security of Pix transactions themselves, as the actual Pix keys are not stored by Qesh. The investigation into the data leak is ongoing, and Qesh has assured customers that they will provide updates as they become available.