What is the most pricey bug in history?

The most pricey trojan horse in history is the Love Bug infection, which was released in 2000. This infection triggered an approximated $5.5 billion in damage worldwide, making it the most costly infection ever. The Love Bug virus was a mass-mailing worm that contaminated over 45 million computer systems in simply a few days.  i was reading this The virus spread rapidly by emailing itself to everybody in the victim's address book. As soon as a computer was infected, the virus would delete crucial files and spread itself to other computers. The Love Bug infection was ultimately dropped in a group of anti-virus researchers who developed a vaccine that could safeguard computers from the infection. imp source