In order to confirm the identity of the person entering an account, a verification code is given to a different device. It's used for two-factor authentication.
Encryption
Information can be converted into code using encryption, which conceals the true meaning of the data.
Satoshi (SATS)
The smallest unit of bitcoin with a value of 0.00000001 BTC.
Falling Knife
The term falling knife (also known as "Catching a Falling Knife" or "Catching the Bottoms") refers to the action of buying an asset which is rapidly declining in price.