A cookie of your site lacks the Secure flag, or a login cookie lacks HttpOnly. Then it can travel over http or be read by a script.
Cookies keep visitors logged in. A cookie without protection can be intercepted or stolen, and with it someone can take over a session without a password.
This is part of the security check, a separate check next to the crawl, in Studio and Bureau, and only on a site you have verified. Snaglist only looks at what any visitor can see from outside. It never logs in, guesses no passwords and sends no attacks. It reads the cookies the homepage sets and checks the Secure flag, and HttpOnly on cookies that look like a session or login.
In the report for your client this appears under the heading "A cookie of your site is not properly shielded". When everything is in order, the report says: "Cookies are properly shielded".
Snaglist checks every page of your site, for this issue and all the others. Start for free, no credit card needed.
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