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Posts Tagged computer network security
The Basics of Computer Network Security
When you first think about computer network security you might picture two security guards watching your computer. Actually computer network security is the line of defense that stops intruders from accessing your computer or network. Detection provides information when somebody tries to access your systems, whether or not they were successful and understanding what they could have done. Information stored on your computers include banking details, credit card credentials and communication logs either chat or email. You can live with someone reading you personal conversations but not when they steal your bank or credit card information.
Intruders often use other computers as a way to launch attacks and disguise themselves as the intruded computer. Custom Malware is one of the biggest network security problems facing the internet. Targeted attacks, designed to be used against a single target, can avoid signature detection. Since the Malware is custom designed to avoid any known signatures and has never been widely released, a signature for it will not exist and no signature detection mechanism will find it, whether in anti-virus software, intrusion detection software, or any other form. Malware can also be disguised from signature detection by using polymorphic tools that change the code constantly, creating a unique version with a unique signature each time the program is created. Polymorphic toolkits such as:ADMutate, PHATBOT, Jujuskins, TAPioN and CLET put this kind of functionality within the reach of the average skilled malware creator, if not the novice In another separate, but real-life example of stealthy malware, the Gozi trojan existed in the wild for over fifty days in the beginning of 2007, and it has been estimated that the first variant of it infected more than 5,000 hosts and stole account information for over 10,000 users. Gozi’s primary function was to steal credentials being sent over SSL connections before they were encrypted and add them to a database server that would dispense them on demand in exchange for payment. Had the malware author made a better choice of the packing utility used, the trojan may have gone much longer before being detected.
Tags: computer network security, gozi trojan, intrusion detection software, network security problems, signature detectionRelated posts
Computer Network Security Services
A good network security ensures that your company meets the mandatory regulatory compliance because network security helps protect sensitive data and reduces the risk of legal action from affected parties due to data theft. Small business n. security also saves your company a lot of embarrassment by not getting bad media attention that follows any security breach, it also protects from unwanted (and usually expensive) disruptions. Ultimately, security ensures the protection of your most important asset – your business reputation. This article explains the concept of security in simple lay terms.
In short, security services measures are implemented to protect the computers in your office by ensuring their integrity, reliability, usability and safety of your computer network and data. Effective n. security targets a variety of threats and stops them from entering or spreading on your network.
Tags: anti virus software, computer network security, intrusion detection system, intrusion prevention system, network security servicesRelated posts