Before people get too complacent about keeping passwords secret, that is not the problem. Passwords are cracked by malware, often with an active hacker. The malware just cycles through potential passwords until they get a hit.
Longer and more sophisticated passwords are better because after a certain amount of time, you wither log off, or the hacker has hacked other people first.
For example, if you have a single figure numeric password the software only needs 10 attempts. Double figure 100 attempts, etc. If you use numbers and letters, the number of tries increases by 10x26 factored into the length of the password, reduced if you are using words as those are fixed blocks of characters.
If you use numbers, letters, at least one capital letter, at least one special character (!@#etc.). That sounds familiar.
If you used randomly generated alpha, numeric, special character passwords these are most secure BUT can be easy to forget and a pain in the but to type in. That is why password safes have been flooding the market.
However, it is important to remember the password safe vendors are using scare tactics to frighten people into buying their product. This is a hard sell.