Computer Security
Computer Security is an important segment of technology recognized as an information security applied to the computers.
It means protecting all information from the unauthorized access, disruption, modification, disclosure, or destruction. The reason of computer security differs and helps to protect information from the theft and fraud.
Technological and administrative procedures useful to computer systems make sure the accessibility, reliability and privacy of information run by computer system.
Computer security inflicts requirements on PCs that are dissimilar from most of the system requirements, since they often take the form of restraints on what PCs are not made-up to do.
Typical approaches to improve computer security include the following:
- Limited access to computers for those who doesn’t compromise with security.
- Hardware devices that will impose rules and regulations on the computer programs, therefore it will avoid depending on the PC programs for its computer security.
- The operating system mechanisms impose rules on computer programs to avoid trusting the computer programs.
- Programming plans to make PC programs reliable as well as resist subversion.
Computer Security contains three Layers: Hacking, Cracking and Phreaking
Hacking:
Unauthorized operation of trying to avoid or bypass the computer security mechanisms of the information system or network.
Hacking will always occupy some degree of violation on privacy of others and damage PC based property like web pages, files, or else software. Impact of computer hacking differs from simply being persistent and trying to be illegal.
Cracking:
Software Cracking is an critical alteration of software to eliminate protection techniques: trial/demo version, copy prevention, hardware key, CD check, serial number, or software frustrations such as nag screens and adware.
Most common software break is the alteration of the application’s binary to cause or prevent the specific key division in the program’s implementation.
Phreaking:
The art and science of cracking the phone network.
Security by design:
Technologies of the computer security are all based on the logic. There is no common standard in view of what the secure actions are. “Security” is the concept that is unique to each circumstance.
Security is irrelevant to the function of computer programs, rather than the subsidiary to it, so security essentially imposes limitations on the computer application’s behavior.
Tips for computer security:
- Update and patch all the software now and then!
- Check and change all the settings so that they are secure, since they are not by default!
- Make use of firewall, such as ZoneAlarm to manage what goes in your computer!
