Protovision is a famous game studio in Sunnyvale, California. Recently, the studio made national media attention when it announced it would no longer offer updates to its games for free. Lightman $($an amateur hacker and avid fan of Protovision's games$)$ was angry at Protovision's announcement. In retaliation, he replaced the main page of the Protovision website with a single image of a computer with the words "GAME OVER." on its screen.

This is an example of what type of an attack?

Group of answer choices

ESPIONAGE

WEBSITE DEFACEMENT

THEFT

CLICKJACKING