One of the things that Internet users can do to improve their sign in security is to make sure that the sites that they connect to is offering connections via https. Why is that important? Because it encrypts the data transfer between the user’s computer and the server they are connecting to.
This protects the traffic from network snooping, for instance on public computer networks, by the Internet Service Provider or the government, as well as from attempts to tamper with the data that is send and received. HTTPS does not conceal the site urls that you access in the browser on the other hand.