You forgot to write:
1.Don't click on suspicious links (newbie links),
2.Don't download brand new wallets from new projects before you can review Virustotal.
3. All accounts can be hacked and this is very hard to notice, strange behavior mostly is noticable.
4.Don't share your personal infoes.
5.Do not trade without third trusted party included.
6.And most of all do not be naive! All scams are commited with opportunistic promisses with much help of a greed..