Hi Jean-Francois,
Thanks for your explanation.
On Fri, 28 Feb 2003, rj3 Jean-Francois RODRIGUEZ wrote:
> >
> > Hi All,
> >
> > Can some body explain the following:
> >
> > 1) Can a Web Bug (i.e., display of an image file from a third
> > party web site) be a security problem?
>
> I don't know about it.
>
> > 2) Does it cause a cookie to be sent from the browser to that
> > third party web site?
>
> About that, yes, it is used by advertisers to get cookies when you visit a
> website where they have put (paying $$) such an image.
> When your browser download this image, it must make a connection to the
> advertiser's website where this image comes from, and so they can ask to
> your browser to accept a cookie.By this way, this third party web site can
By "accept a cookie" you mean "return (or send) a cookie"?
I thought the browser already got the cookie (some where and some how>.
> put and read cookies that your
> browser have accepted visiting different web sites, because they all come
> from the same advertiser's web site (and so they can gather different
> information about you : what kind of sites you are usual to visit, so what
> are your interests...).
1) So, by returning a cookie (because of connection via the web bug)
this third party will know that I had visited a particular site?
2) What if I had visited multiple sites? Can this one cookie tell
this third party web site what sites I had visited?
Or do I (i.e., my browser) send more than one cookies?
Any way, very interesting!
> I must have learned all that here : www.searchlores.org
I'll visit this site.
Thank you!
Philip
> Regards
>
> Jean-François
>
>
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