Is it possible to pick up a virus using external file storage services?

Question

Malware

In fact, our server is only an intermediary, we accept the file, set the settings for saving the resolution type and format, and send it to a third-party service where it is saved.

Answer 1

If your server is an intermediary, then it may suffer due to untimely receipt of regular OS updates, and then through the OS it may become vulnerable to external threats, which means that files can be infected/replaced/encrypted, etc...