--Originally published at Computer and Information Security
A countermeasure is an action that can prevent or mitigate the effects of threats to a computer, server or network. Software, hardware and modes of behavior can be used as countermeasures.
Software countermeasures: firewalls, anti-virus software, pop-up blockers and spyware detection.
Hardware countermeasures: routers that can prevent the IP address of a computer from being visible on the Internet, physical restriction of access to computers and alarms.
Behavioral countermeasures: frequent deletion of cookies, regular scanning for malware, regular installation of updates for operating systems and staying away from questionable Web sites.
Photos:
- Flickr photo by Gabriel Salvadó https://www.flickr.com/photos/eldibuixant/2984113124 shared under a Creative Commons (BY) license.
- Flickr photo by debsilver https://www.flickr.com/photos/debsilver/102508862 shared under a Creative Commons (BY) license.
- Flickr photo by Marcos Castellano https://www.flickr.com/photos/guspim/16068339396 shared under a Creative Commons (BY) license.
