Massive 1.17TB Data Leak Exposes Billions of IoT Grow Light Records A massive data leak exposed 2.7 billion records from Mars Hydro, a Chinese IoT grow light company, including Wi-Fi passwords, IP addresses, and device IDs. The unprotected database, discovered by cybersecurity researcher Jeremiah Fowler, contained sensitive information and was secured within hours of notification. This incident highlights the urgent need for improved data protection measures in IoT devices and apps.