lockbox
/ˈlɒkˌbɒks/Definitions
1. noun
a secure container, typically made of metal or plastic, used for storing valuable items, such as money or important documents, in a safe and private place.
“She kept her inheritance money in a lockbox at the bank.”
2. noun
a type of safe or secure storage device, often used for storing digital files or data.
“The company uses a lockbox system to protect customer data from hackers.”