Sort:  
 last year  Reveal Comment

the owner key is to change all your keys. The posting is to log in, the active is gor monetary transactions and the memo is to encrypt and decrypt memos. Mostly you need the posting key only. Never NEVER give anyone your owner key! That is only yours!

lol, you got there before me and I didn't spot it.
Nicely done 😁

Each key is a different level of access.
Memo key is the lowest
Posting key lets you post, comment, vote etc
Active key is for moving funds etc
Owners key must be kept secret, it's for password changes & account recovery