— Spam emails are usually so crude that it might seem impossible that spammers make money from them, but the sheer volume of messages sent every day makes spamming a profitable industry - most emails sent worldwide are spam.
This constant stream of cheap drug offers and other scams is pumped out by botnets, networks of computers that have been hijacked without their owners' knowledge, which are rented out to spammers as a mass email delivery service. In August last year, researchers at
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