Net users who have not ever been infected by browser hijacker regularly may have more difficulty distinguishing Smartnewtab.com than those who have once it appears on computer. The infection of this browser hijacker raise the risks of a number of privacy lose, as well as system risks of damage and error. The attack of this threat tends to climb in tandem with the number of third parties that users just download from the internet recently – a pattern that suggest a cause-effect relationship.