Twitter has just released (15th March) a new user setting that lets you use HTTPS when accessing http://twitter.com. Most people who use Twitter, don’t realize that you can type in https://twitter.com, which provides you with a significantly more secure connection, especially when using a public wireless network.
Last month it was Facebook, now Twitter has followed suit with the HTTPS option. Be aware, HTTPS is not a default option with Twitter. You will need to go to your settings and check the box next to “Always use HTTPS” which you will see at the bottom of the page.
TIP: The Firefox plugin Firesheep which automatically steals (sidejacking) session cookies will not work if you have HTTPS enabled.
Worth noting, HTTPS doesn’t currently work with your mobile browser, so you will still need to go to https://mobile.twitter.com to use HTTPS. Twitter is apparently working on a solution whereby you will be able to use the HTTPS setting on both twitter.com and mobile.twitter.com. Third party Twitter apps (i.e. TweetDeck) may or may not support HTTPS, so I suggest you first check with these Twitter app developers before downloading and installing.
Safe surfing folks!