What is a secret key

BlockSurvey uses Stacks blockchain for Account / Identity Management. 

When you create an account with us, you're actually creating a decentralized identity (DID) that gets anchored to the Bitcoin blockchain through Blockstack. 

And to make sure that you're the only one who can access your identity on the Blockstack blockchain, we give you a secret key - it's a set of 12-word or 24-word that prove your ownership of your account/identity.

Words, for example:

applied binge crisp pictorial fiery

dancing agreeable frogs light finish ping apple