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1. SECURITY THREAT.

Computer security is known as cyber security or security of information technologies.
The definition of information security should not be confused with that of "Computer Security", since the latter only deals with security in the computer environment, but the information can be found in different media or forms, and not only in media computer.
Computer Security encompasses a series of security measures, such as antivirus software programs, firewalls, and other measures that depend on the user, such as activating the deactivation of certain software functions, such as Java scripts, ActiveX, caring of the proper use of the computer, network or Internet resources.

 The four main areas covered by computer security:
1. CONFIDENTIALITY: Only authorized users can access our resources, data and information.
2. INTEGRITY: Only authorized users can access our resources, data and information.
3. AVAILABILITY: Data must be available to users when necessary.
4. AUTHENTICATION: You are really communicating with those who think you are communicating.

 The computer security measures you can take include:
*Ensure the installation of legally acquired software: legal software is usually free of Trojans or viruses.
*Antivirus suites: with properly defined configuration and system rules.
*Hardware and Software firewalls: firewalls help with the blocking of unauthorized users trying to access your computer or your network.
*Use of complex and large passwords: passwords must consist of several special characters, numbers and letters. This greatly helps a hacker to break it easily.
*Beware of social engineering: through social networks, cyber criminals may try to obtain data and information that they can use to carry out attacks.
A threat can be either "INTENTIONAL"(i.e. Hacking: an individual cracker or a criminal organization) or "accidental" (e.g. The possibility of a computer malfunctioning, or the possibility of a natural disaster such as an earthquake, a fire, or a tornado) or otherwise a circumstance, capability, action er event. 
   










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