Changes

*'''Adware''': This software is responsible for undesired pop-ups and other kinds of aggressive advertisements.<ref name="vera">[http://www.veracode.com/blog/2012/10/common-malware-types-cybersecurity-101/ Common Malware Types: Cybersecurity 101] (October 12, 2012), Veracode</ref><ref>[http://en.wikipedia.org/wiki/Adware Adware] at Wikipedia</ref>  

*'''Adware''': This software is responsible for undesired pop-ups and other kinds of aggressive advertisements.<ref name="vera">[http://www.veracode.com/blog/2012/10/common-malware-types-cybersecurity-101/ Common Malware Types: Cybersecurity 101] (October 12, 2012), Veracode</ref><ref>[http://en.wikipedia.org/wiki/Adware Adware] at Wikipedia</ref>  

*'''Bots''': This software, once installed, operates based on orders given from an outside party, such as a hacker.<ref name="vera"/> While bots can be used for harmless purposes, they can also create large security threats if programmed to "infect a host and connect back to a central server or servers that act as a command and control (C&C) center for an entire network of compromised devices."<ref name="cisco">[http://www.cisco.com/web/about/security/intelligence/virus-worm-diffs.html What Is the Difference: Viruses, Worms, Trojans, and Bots?], Cisco Systems</ref> Bots can be used in [[Botnet Attacks|botnets]], [[DDoS Attacks|DDoS]], [[Spam|spam]] or [[Fast Flux|fast flux]] attacks. Botnets have become an increasing problem in recent years, and individuals with compromised computers may not be aware they are infected.<ref>[http://www.fbi.gov/news/news_blog/botnets-101 Botnets 101: What They Are and How to Avoid Them] (June 5, 2013), Federal Bureau of Investigation</ref>

*'''Bots''': This software, once installed, operates based on orders given from an outside party, such as a hacker.<ref name="vera"/> While bots can be used for harmless purposes, they can also create large security threats if programmed to "infect a host and connect back to a central server or servers that act as a command and control (C&C) center for an entire network of compromised devices."<ref name="cisco">[http://www.cisco.com/web/about/security/intelligence/virus-worm-diffs.html What Is the Difference: Viruses, Worms, Trojans, and Bots?], Cisco Systems</ref> Bots can be used in [[Botnet Attacks|botnets]], [[DDoS Attack|DDoS]], [[Spam|spam]] or [[Fast Flux|fast flux]] attacks. Botnets have become an increasing problem in recent years, and individuals with compromised computers may not be aware they are infected.<ref>[http://www.fbi.gov/news/news_blog/botnets-101 Botnets 101: What They Are and How to Avoid Them] (June 5, 2013), Federal Bureau of Investigation</ref>

*'''Ransomware''': this allows a malicious third party to essentially stop users from accessing their computers, often by locking the users' system or encrypting files, until a specified amount of money is paid.<ref name="micro ransom">[http://www.microsoft.com/security/portal/mmpc/shared/ransomware.aspx Ransomware], Microsoft Malware Protection Center</ref><ref name="vera"/> Sometimes attackers using ransomware will pose as legitimate authorities.<ref name="micro ransom"/> McAfee security observed a large increase in ransomware in 2012 with 200,000 new versions of it found per quarter.<ref name=state>[http://www.scmagazine.com/the-state-of-malware-2013/slideshow/1255/#5 The state of malware 2013], ''SC Magazine''</ref>

*'''Ransomware''': this allows a malicious third party to essentially stop users from accessing their computers, often by locking the users' system or encrypting files, until a specified amount of money is paid.<ref name="micro ransom">[http://www.microsoft.com/security/portal/mmpc/shared/ransomware.aspx Ransomware], Microsoft Malware Protection Center</ref><ref name="vera"/> Sometimes attackers using ransomware will pose as legitimate authorities.<ref name="micro ransom"/> McAfee security observed a large increase in ransomware in 2012 with 200,000 new versions of it found per quarter.<ref name=state>[http://www.scmagazine.com/the-state-of-malware-2013/slideshow/1255/#5 The state of malware 2013], ''SC Magazine''</ref>