The reason why many use file encryption is to protect important files when sending or sharing them online. It is becoming evidently popular as businesses are using email to send important information that should only be seen by the intended recipient. By encrypting the file you are securing the document and making sure no one who hasn’t got the correct key can decode the document.
Depending on the kind of file encryption you require there are many different types suited to different requirements. So if you require a file encryption software that gives cloud storage and works with internet servers such as FTP and FTPs, you can upload files to the ‘cloud’ that are encrypted.
The main reason why it is important to send large files through file encryption software is due to the many data breaches that have recently been made evident. These companies face a large fine from the ICO for not protecting their data, so it is important to secure your data, but obviously the main reason would be to stop your private information from getting into the wrong hands.