Twitter users urged to turn on the service’s new ‘always use https’ encryption setting. The ‘Firesheep’ add-on has exposed the ease with which session keys can be sniffed when users connect to social media sites using open public WiFi hotspots. The only defence until now has been to login to the site using https://://://twitter.com. Users can protect themselves against the Firesheep scourge by selecting https encryption from in the settings panel without having to remember to use the correct site. There are some limitations for mobile users who still have to access https.”]
Source: https://www.csoonline.com/article/2127622/twitter-embeds-encryption-to-foil-firesheep-hackers.html