* consider [[I want to be anonymous connecting to the web|anonymity services]] when using the social network
* use a [https://securityinabox.org/en/guide/passwords good password] to protect your login
* configure your account's security and privacy settings (guide for [https://www.facebook.com/help/325807937506242/ Facebook] and [https://support.twitter.com/categories/51#category_267 Twitter])
You help [https://immersion.media.mit.edu/ create the social graph] of your friends and associates. This is useful information to companies and security services. By remaining constantly signed in on your social network account in the browser, you are also disclosing your [https://trackography.org/ browsing habits] on the Internet in general, outside of their service.