In message <[EMAIL PROTECTED]
m>, "Trei, Peter" writes:
>Actually, it's unlikely that anyone would embed watermarks in billboard
>ads, or in ads in general. Copying an ad is usually a Good Thing from
>the advertiser's point of view - more exposure. It's only the program
>material which needs protection.
>

In other words, an ad-skipping device should skip anything not 
watermarked, since those are ads....

What's your threat model, and what are *all* the implications of it?

                --Steve Bellovin, http://www.research.att.com/~smb (me)
                http://www.wilyhacker.com ("Firewalls" book)



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