What is the most pricey bug in history?

The most pricey bug in history is the Love Bug infection, which was launched in 2000. This virus caused an estimated $5.5 billion in damage worldwide, making it the most expensive virus ever.  https://zerogov.net/?p=990 The Love Bug infection was a mass-mailing worm that infected over 45 million computers in just a couple of days. The infection spread quickly by emailing itself to everyone in the victim's address book. As soon as a computer system was infected, the infection would erase crucial files and spread itself to other computers. The Love Bug virus was ultimately come by a group of anti-virus scientists who developed a vaccine that could safeguard computer systems from the virus.