It occurred to me recently that a lot of people probably use screen or tmux in
ways that leave an easy path to privilege escalation open. For example if you
start a screen session as your local user and then escalate to root inside the
screen session. As soon as you do that, anyone with access to the non-root
account can simply resume the screen session and immediately be root.
The vim keybindings are wonderful once you get used to them.
What some people don't know is that the same keybindings are available in other
programs, for example bash has a "vi mode" which can be enabled with:
set -o vi