Add to Chrome.
Click 'Add extension' above.
The installation process should take less than a minute.
Next, you'll Create an Account.
What are Secure Notes?
LastPass Secure Notes allow you to store private information safely and securely. Think of it as a password-protected, digital notepad that you can access from anywhere, at anytime. Some examples of data that you might save in a secure note include bank account numbers, social security numbers of your family members, passport numbers, combinations to safes, etc.
Learn more here https://helpdesk.lastpass.com/secure-notes/