> ...receiving client tries to do a link preview I understood that the link in question was to some google.com, not a 'hacker' controlled URL. [ ...Yossi sent

> ...receiving client tries to do a link preview I understood that the link in question was to some google.com, not a 'hacker' controlled URL. [ ...Yossi sent me a link via Skype text chat to google.com. The link was to the real Google site, and not an imposter. ] It may be something which is kept in the app's db following the generation of a preview. Would it make sense to restrict the chats to only 'address book' contacts, supposedly trusted?