Click-jacking: By placing an invisible overlay over top of a legitimate page, a malicious agent can hijack a users mouse clicks. To overlay the vulnerable page, the malicious agent will host the victim page inside a full page frame with no borders.Click-jacking: By placing an invisible overlay over top of a legitimate page, a malicious agent can hijack a users mouse clicks. To overlay the vulnerable page, the malicious agent will host the victim page inside a full page frame with no borders.