How to Choose a Password - Computerphile

It depends on several things. Are you trying to secure a physical device like your computer or phone? Then you’ll need a memorable password that you can type out. What threats are you trying to defend against? If you’re worried about being targeted by an adversary like the government with physical access to your device and basically infinite resources, then you should never try to come up with your password from your head, humans are terrible at randomness. You should instead create a Diceware passphrase that’s at least around 8 words long. If you’re just worried about basic thieves/nosy people, then I would still go with a Diceware passphrase but you can make it shorter so you are able to remember it better. For online accounts, you should always use a password manager to generate and use those passwords. You don’t have to worry about making them memorable since you won’t need to remember them. Also use passkeys whenever you’re able to. Slightly misspelling a word or using weird characters doesn’t improve the security as much as you think and makes it difficult to remember (I know people that have lost passwords multiple times because they couldn’t remember the special characters they used), so just stick with Diceware.