@sochul please IMMEDIATELY change your password on Steem because you sent your private key in a memo that anyone can now use to access your account! I am going to show this in a post tomorrow to help assist with a feature request and am commenting here to give you time to do it before anyone hopefully notices.

Changing your password at https://steemit.com/@sochul/password will stop anyone from being able to use your private keys to sign into your account. Make sure on your new owner key to keep it backed up with something such as LastPass or another password manager or an offline backup because the original password will not work after changing it!

In the future make sure to never sent a memo that includes a private key in it! Hopefully Steemit will make a feature that blocks private keys in memos in a future update!