Hello,

Achievement task should be orignal. You have copied the entire text including images from this publication:

• https://steemit.com/hive-172186/@monirm/achievement-2-monirm-task-basic-security-on-steem

I am familiar with each key and I know a lot about the functionality of each key.
For example: 1-Posting Key
2-Active Key
3-Ower Key
4-Memo Key
1.Posting Key
This posting key is used to post, comment, edit, vote, resteem and follow or mute other accounts. I should log in to steemit daily with the posting key. The more I use the password or key the more. There is a high probability of being hacked. Therefore, in order to limit any damage to the account due to being hacked, I use Posting key.

You have to describe the task in your own understanding.

Thank you.