Let's face it - we live in a digital world where electronic
and online transactions are a part of our everyday lives. Companies
are under constant competitive pressure to provide faster and more
convenient ways for their customers to conduct business
electronically. Unfortunately, electronic and online transactions
are still vulnerable to security breaches. Despite determined
efforts by businesses, Internet service providers, software
providers, law enforcement agencies, and individual consumers to
make online transactions more secure, private individuals and
public companies continue to be victimized by cyber-crimes.
Common cyber-crimes include cyber-extortion, cyber-fraud, and
identity theft, with each carried out in a myriad of ways. A
well-known tactic used to carry out all three of these cyber-crimes
is spamming. Spam emails can be used to obtain unauthorized access
to accounts and can deploy massive amounts of malware in the form
of computer viruses, worms,
