3000 bitcoin miners have open telnet port with no password

I was just watching a McAfee video today where he was talking about security, and about how he was working with Jihan Wu on security. I got the impression miners were more careful! In other news, watching the McAfee video encouraged me to get my cryptocurrency the hell off my phone! I’m not quite sure where Mycelium support for Dash and Bitcoin Cash are, but their app does support KeepKey, Trezor and Ledger.