Computer threats FAQ - Kaspersky Labs

Couldn’t explain the difference between a virus and a worm? Think a ‘rootkit’ is used in the garden, or a ‘botnet’ is something out of Star Wars? Read on to brush up on your cybercrime lexicon.
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Be it Trojans, keyloggers or spyware, ‘Crimeware’ represents a new type of threat to our security, posing new challenges for those tasked with fighting crime in the 21st century. Be aware.

http://www.kaspersky.com/threats_faq

Interesting how much threats have changed over a relatively small time.

Compare "spyware": http://www.google.com/trends/explore?q=spyware#q=spyware&cmpt=q

To "malware": http://www.google.com/trends/explore?q=spyware#q=malware&cmpt=q

The same applies to the term "adware" http://www.google.com/trends/explore?q=spyware#q=adware&cmpt=q