These are my personal guesses:

• NBC wanted someone who was the opposite of Lester, and he was given the decision to either host another show or resign.

• Doing a show five days a week for ten years can really wear down someone, and he decided to host something that didn’t require him to host as often (since Dateline is a weekly show).

• Lester wanted a change (as he has hosted the same show for many years).

• NBC (as a whole) is changing, so they thought they should slowly change their hosts to reflect the political view they want, and why not start with a nightly show.

We all know how this is going to end, we investigated ourselves and found nothing wrong. And if they find something wrong, they’ll either “fix” it or omit it from the public report.

Encrypt your computer (which will make it harder for someone to get into it). Use more complex passwords (lowercase, uppercase, numbers and symbols). Use open-source software (or at least the ones that are fully offline / can turn off tracking). Using physical devices (not bluetooth) where possible (as someone could be nearby and see that you use that brand of mouse). Turn off microphone and camera when not using it (physical switch is better, if possible).