What is the most costly computer system virus in history?

The most expensive computer system virus in history is the Love Bug infection, which was launched in 2000.  https://sakeradvantage.com/?p=866 As soon as a computer was infected, the infection would delete essential files and spread itself to other computer systems.  investigate this site The Love Bug virus was ultimately stopped by a group of anti-virus researchers who developed a vaccine that could secure computer systems from the infection.