I secure my bitcoin by adding 2 Factor Authentication to provide an extra layer of security to my wallet. 2 Factors Authentication is usually in the form of verification via an SMS pin that will enter the cellphone number that I registered when I made a wallet, or in the form of a Google Authenticator pin that I installed on my laptop or on my smartphone. As a result, every time I want to enter my wallet, I need to be able to enter my e-mail address, password and SMS pin or my GA pin to access my wallet.