Assalamualaikum dear friends.
It is not hope but faith that everyone is well and healthy by God's infinite mercy. I am also well by the grace of Allah.
By now I have completed my steemit achievement-1 and got verified. So now it's time to fill my achievement-2.
Steemit's Achievement-2 is said to address security issues. That is, why is any kind of security used in Steemit?
It has been asked to shed light on that matter.
I am trying my level best to thoroughly explain all Steemit security issues.

Blockchain Security
Blockchain Security is a comprehensive risk management system for a blockchain network,
Cyber security frameworks, assurance services, use best practices to reduce risks against attacks and fraud.
Blockchain technology creates a structure of data with inherent security qualities. This is cryptography,
Based on the principle of decentralization and consensus, which ensures trust in transactions.
Blockchain technology is a very important security technology that is
completely different and powerful from other security technologies.

Restoration of Blockchain Security
I got my security key after registration on Steemit and I got security key in document form.
So it is very safe and must be stored carefully.
Also I got the key in the form of a PDF file.
The digital file is saved in my Google Drive and can only be accessed by me.
Using blockchain security recovery
Define and enforce endorsement agreements based on business contracts.
Enable identity and access management (IAM) controls to handle data access in the blockchain.
Execute suitable tokens like OAUTH, OIDC, and SAML2 to perform user authentication, verification, and authorization.
Securely store identity keys.
Use privileged access management (PAM) solution to secure blockchain ledger entries after suitable business logic.
Safeguard API-based transactions with API security best practices.
Use a data classification approach to safeguard data or user information.
Use privacy-preserving technologies for sensitive information.
Use standard TLS for internal and external communications.
Implement multi-factor authentication.
Keep strong cryptographic key management.
Leverage hardware security module (HSM) and security incident and event management (SIEM).
Do regular vulnerability assessment and penetration testing (VAPT)
Patch security loopholes to protect blockchain-based applications from vulnerabilities and data breaches.
Get an industry-recognized security certification for your Blockchain solution.
Enforce compliance and other security controls for the solution.

FUNCTIONS AND KEYS:
Generally there are 4 types of keys are exist.

Posting key
Active key
Owner key
Memo key
Posting key :
Posting key is a two digit number which plays a very important role in posting an accounting document.
As per standard practice, each key is used for a specific business transaction.
Standard SAP offers a large number of predefined keys. Custom keys can also be created.
ACTIVE KEY:
Active Key is a leading manufacturer and vendor of keyboards and mice for
the use in medical and hygiene critical areas but also for industrial, POS, banking and office applications.
/An activation key is a code that is used to register or activate a software application.
It is typically composed of letters and numbers, often with hyphens in between activation key segments
OWNER KEY:
1 under Owner of a key is owner key. An entity authorized to use a cryptographic key
or key pair and whose identifier is associated with a cryptographic key or key pair.
MEMO KEY:
Memo key is simple but important key that is used
to encrypt or decrypt inscriptions when transmitting funds.
Keep master
I have already created my account and saved my master password in my google drive,
As a result no one can access my master password and know any information about my account.
I know I will be in great danger if I lose this master password.
So I make sure that my master password is never lost.
Step 1: First, open any browser on your computer/mobile and go to the Steemit site and log in to your Steemit account using username and password.
When you log in, the profile you will get is yours, you will see the WALLET button in that profile, click on the WALLET button now.

Transfer


Yes, I know how to transfer steam from one steam user account to another steam user account.
And in the meantime I am submitting the tutorial to transfer Steam Tokens to another Steam user's account.
After that open a steemit wallet page. There you can see all your earnings information.
Step 2: After that you will get a Power Up button like (Transfer, Transfer to Savings, Power Up,) Trade and Market.
Step 3: Now you click on transfer button. After that you will get a page which includes From, To Accounts and you will see your balance box....
Fill in the Receiver Address items and click the Next button.
Step 4: After that you will get a new sign in page and want to enter your active key or owner key or master password to perform the task......
After entering the key... Press the Sign in button to sign in and enter.... After that the transaction will be completed.
POWER UP
Yes, I know how to power up steam and I am submitting here the tutorial on how to power up our steam.

Step 1: First we need to go to the wallet to power up.
In the drop down menu list we can see the Power Up button. Click the Power Up button.
Step 2: After that we will get a new page which looks like this.
Now you fill the amount box and click on power up button.
After that we will get confirm transfer on vesting. Click OK to confirm
Step 3: Now get a new page to enter activation / owner key / master password to complete the action.
Now enter your activation / owner key / master password and save it properly.
This is the end of my post on basic security on Steemit.
Thank you all
My Achievement 1 verified; https://steemit.com/hive-172186/@limuakter/achievement-1-my-1st-post-limaakter

@limuakter