If its a DVR then one needs permission to download the video. Many DVR's have access policies that can limit certain users/groups to only view or playback disab

If its a DVR then one needs permission to download the video. Many DVR's have access policies that can limit certain users/groups to only view or playback disabling download. Then if they do have download access they likely need access to a USB port and have a USB drive handy as they likely have to download the file from a web UI. Then they have to get that video on to a PC or Phone/tablet and upload it. Or just point the phone at the screen, record, click the share button and select YouTube or whatever.