Hello, steemians how are you all today?
Haven been through with my first task , I'm to present my second achievement .

Firstly security is said to be a state of been free from threat or danger(s). So basically, anything can be threatened from our lives to our bank account , our live saving, etc. This is why also your steem account must be secured ,not that it isn't safe but recklessly leaving it unsecure isn't a good idea or action either. So that is why there are keys that are used in steem to insure the safety of our accounts here on steemit. These keys are divided into two parts :

The private and the public keys

The public keys :just as it's name states , it is public to everyone and it poses no threat nor harm to your account.
The private keys :these ones must be kept secure and they include
Posting key: posting key is used for Blockchain purpose. It is used for posting of articles ,commenting on posts replying of steam posts up voting and down voting of posts.
Owners key: this is the most powerful and important key because include the master power and active key and leaving it carelessly isn't right as it may can cause harm to ur account .
master key: This key is capable of resetting every other key which includes the owner key etc and vote for steam witnesses.
Active key: this is used for financial aspects like
Transfer of sbd ,steem, placing of orders changing of account settings , powering up or down.
Private memo key:this key is used to decrypt transfer memos.

Source

So with this, I can answer the questions I have been asked to for evaluation of my comprehension of the basic security on steemit

Question 1

Have you retrieved all your keys on steemit ?

Yes I have .

Question 2

Do you know each of these these keys , their functions and restrictions?

Yes I do know their functions and restrictions
Posting key :for posting of articles, commenting on posts, replying to comments etc

 STEEM EXCLUSIVE | ORIGINAL CONTENT

Achievement 2: Basic security by @thee-courage

Question 1

Question 2