The cookies for the non-members can be placed only if the social network obtained priory their consent, and they need to be only session cookies
opposed to permanent cookies.
* Principle of Integrity: If session cookies
can be intercepted in transit, unauthorized users can assume someone's identity and alter the information on that system.
"The website's privacy statement declares that the site uses 'session cookies
' which are erased after use, whereas in fact it uses so-called 'persistent cookies' that remain on people's computers after they visit the website.
The web browser must allow session cookies
. A mouse is required.
You just download it from the web, install it on Firefox, click on a button, and, voila, you're free to snatch any session cookies
floating around the WiFi network to which you're currently connected.
Agencies could still use session cookies
to track users in a single browser session, but they could not track activities through multiple agencies.