I don't know how many times we have to keep repeating this.
Do NOT give out your username and password to anyone, no matter what.
We've been having a lot of tickets lately of people who lost their account due to someone who had access to it stealing their account. When you give out your password, YOU are responsible for it. You cannot blindly depend on GMs who will "recover it anyway, so it's fine". It's not fine. Not all cases can be recovered.
Whether it's for helping on a quest, borrowing items, heck, even to your brother/sister (yes, we've had family members scamming each other), the same rule applies: do NOT give out your password.
Thank you.
P.S. Boreas wants you all to know that the world will implode and fill your heart with never ending darkness if you share passwords.