I think I found two great videos on youtube on the dos and don'ts of password creation. A real must watch. I encourage everyone to watch these and then consider if your passwords are really safe.
https://www.youtube.com/watch?v=7U-RbOKanYs Also https://www.youtube.com/watch?v=3NjQ9b3pgIg
If you don't trust my link the video is called: "Password Cracking - Computerphile" also "Password Choice - Computerphile "
If you know of a better video on password creation plz post it.
Edit: would also like to recommend everyone watch "How NOT to Store Passwords! - Computerphile" and "Security of Data on Disk - Computerphile"
No one gonna share their password to anyone. If you do a mistake like keeping hard password and logging in to the site same like blockchain other wallet site means also your funds will be taken out by hackers. Please make proper log in attempt and keep safe private key and don't share your DAT file of tour wallet this enough to be safe.
Also using 2FA in your online wallet whatever it is where you are storing your bitcoin is also a good idea beside on using private key, and when it comes to professional hackers, there is no such thing as
SAFE PASSWORD, I remember the hacking that happened in the blockchain way back 2015, where hundred of millions dollars worth of bitcoin was stolen, correct me if I am wrong.
So, there is no safe password to be honest, all we have to do is to secure our accounts and check it daily to be sure that no one is using it or already know our password.
True, 2FA is a must if you want your Bitcoins to be okay, especially on online wallets which can be compromised at any time. If you have a password and your login isn't going through a device that you've got near you, your safety is slightly compromised. Good passwords do help but they're not the magic solution to everything.