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Computer security[]

Prevention is

the process of hardening a system or service so that it is less vulnerable to compromise and exploitation. For example, on many systems, prevention may involve:
Patching the operating system and all applications with available security fixes
Installing or enabling a firewall
— Using anti-virus software
— Making sure the system is regularly backed up
— Using strong passwords
Disabling all unneeded network services
— Encouraging users to safely use internet services (e.g., e-mail, web browsing, etc.)[1]


Prevention is

[a]ctions to avoid an incident or to intervene to stop an incident from occurring. Prevention involves actions to protect lives and property. It involves applying intelligence and other information to a range of activities that may include such countermeasures as deterrence operations; heightened inspections; improved surveillance and security operations; investigations to determine the full nature and source of the threat; public health and agricultural surveillance and testing processes; immunizations, isolation, or quarantine; and, as appropriate, specific law enforcement operations aimed at deterring, pre-empting, interdicting, or disrupting illegal activity and apprehending potential perpetrators and bringing them to justice.[2]
[d]eveloping proper interdiction guidance for prevention activities. Prevention activities include bi-directional information sharing within the IT and communications sectors, and with government (Federal, state and local) and international agencies.[3]

National security[]

Prevention is

[a]ctions taken and measures put in place for the continual assessment and readiness of necessary actions to reduce the risk of threats and vulnerabilities, to intervene and stop an occurrence, or to mitigate effects.[4]
[t]hose capabilities necessary to avoid, prevent, or stop a threatened or actual act of terrorism.[5]


See also[]