US Patent 9467410 Just-in-time, email embedded URL reputation determination

A system allows just-in-time checking of information about an email in which a hyperlink is embedded. Upon receipt of the email containing the hyperlink, the resource locator of the hyperlink is modified to allow checking the reputation of the email upon traversal of the hyperlink. At traversal of the hyperlink, the current reputation of the resource locator and the current reputation of the email are both determined, and one or more actions are performed responsive to the determination.