If you are storing bitcoin in your computer for sure you need to have protected computer and have an updated computer and anti-virus but as well you need to have a password on your wallet to make sure that no one will be able to access it or to make transfers but mostly for me I just used the two-factor or the authentication which is pretty good and it really gives a security in your account. You should not tell anyone that you have a bitcoin or that where your bitcoin is stored, for me I never tell anyone except my family but they don't know how it works and where do I store it to make a privacy with my coins.
Simple tips to keep my Bitcoin from hackers, we must be carefull of our private key or password. We don't put our password on mobile or that are connected to the internet because it is usually easy to hack. We just write a piece of paper or we can create a flash drive to save our password and we put it in our bag that we carrying everyday especially when we are workers so that it will prevent to hackers.