DenisChenu wrote: Only with broken browser then : cookies can not be read by another website without browser consent.

The fact that LimeSurvey places a cookie on the browser for a year with a certain date is the point. Not how and if someone else is able to access these data.

This access prevention cookie is not a big thing (when seen in context with everything else), but just data stored in the browser of a user for one year. That needs to be pointed out. No big deal, but when we state "LimeSurvey stores nothing when the session is over" this is not always true. Nothing more, nothing less.