Open Site - Computers: Security: Network Security

Top: Computers: Security: Network Security

Pages

[ history ]

Security Hole

A Security hole is a sign of fragility within the design of a software program.
A security hole can be present in an Operating System(OS) (Linux, Macintosh, Windows, etc.) or a software program(Apache HTTP server, PHP, Symantec Internet Security) that runs within an operating system. An example of an operating system security hole: The Blaster worm was a worm that exploited a flaw in the Windows operating system and infected several thousands of computers just by making contact over the Internet. An example of a software security hole: A web server running an older version of PHP could be used by a remote attacker to take control of a system. This system could then be used to host a phishing website or put to other malicious purposes.
In summary, a security hole allows the falsification of data, unauthorized access　and potential leakage of personal or corporate information.
When security hole is fixed by a vendor,　it is usually available to download for free. See the Advisories and Patches section.

[ history ]

Port Scanner

Several services or programs that are run on a computer listen for information on either a TCP or UDP port. A port scanner is a program that looks for these open ports on remote computers. Port scanners can scan a single computer or an entire network. This type of program is used for either malicious or professional purposes. If an intruder is looking for a way into a computer system then using a port scanner will be one of the first things done. A systems administrator will use a port scanner to make sure that only the services that are supposed to be listening are present.

[ history ]

Secure Socket Layer (SSL)

Secure socket layer is one of security way.
It usually is used scramble credit card numbers　and 　protection of personal information.
It uses　computer security technology of diverse ways.

[ history ]

Honey Pot

Purport is deal with knowing about　way of countermeasures against unauthorized access and computer viruses to cracker.

[ history ]

Phishing

This is hide one's identity by pretending to
company and bank to gather personal information about credit card and password.　

Protective Measures
Please don't click URL in E-mail.
Please use a search engine or a bookmark to visit a website.

[ history ]

Trojan Horse

This execute computer hacking in panoply.
Disguised as useful software.
It brings computer system to destruction.
However, it is not infected with other files and, is not breeding.
It is important not to use the software which is not reliable.

[ history ]

Backdoor

This is for making it easy to go into the computer to which it accessed unlawfully once.
It may be better to format a hard disk, when unlawful access is checked.