LuminPDF Data Breach (2019)

Lumin PDF, a cloud-based PDF editing and sharing platform, suffered a data breach in 2019 that exposed the personal information of more than 15 million users. The stolen data included email addresses, passwords (stored as bcrypt hashes), and Google tokens, which could have potentially given unauthorized access to other Google services. The breach was believed to have been caused by a vulnerability in Lumin PDF's backend infrastructure.