04-05-2020, 12:44 AM
I can almost bet with good odds that it is unattended updates (security updates) that are being downloaded. There is a way to turn them off but it is not advised for new users or people who do not know what is really going on. I will give the code but please use it if you only know what your doing and this is what you really want.
Code:
sudo dpkg-reconfigure unattended-upgrades