The Top 10 Worst Pc Viruses Of All Time Вђ“ Azmath -

: The first major mass-mailing virus of the modern era, which forced many large companies like Microsoft to shut down their email systems entirely.

: A worm that exploited a vulnerability in Microsoft IIS web servers to launch DDoS attacks, including one targeting the White House website. The Top 10 Worst PC Viruses of All Time – AZMATH

: A fast-spreading worm that caused roughly $30 billion in damage by overloading corporate servers with millions of emails. : The first major mass-mailing virus of the