Today, we’re taking an important step to make it easier to manage the security of your Twitter experience – we are adding a user setting that lets you always use HTTPS when accessing Twitter.com. Using HTTPS for your favorite Internet services is particularly important when using them over unsecured WiFi connections.
For some time, users have been able to use Twitter via HTTPS by going to https://twitter.com. We’ve made it simpler for users to do this by adding the option to always use HTTPS.
To turn on HTTPS, go to your settings and check the box next to “Always use HTTPS,” which is at the bottom of the page.