| The computer age has developed so quickly that | | | | security and network security. Information security is |
| there are more applications to it than users to | | | | preventing loss of data by malware attack and hacker |
| implement them and make complicated tasks much | | | | attacks, or due to mistakes of the members belonging |
| easier. The number of computers however, has | | | | to the organization. This type of security is restricted to |
| increased tremendously thereby furnishing each | | | | the internal boundaries of the network. Network |
| household with at least two or more computers. | | | | security is worked on a larger scale and is responsible |
| Offices can easily provide advanced PCs for each of | | | | for protecting the data belonging to the network from |
| their workers whether their job requires it or not. The | | | | being placed in the wrong hands of a hacker. It draws |
| fact that in most cases there is usually more than one | | | | a boundary around the network against any outside |
| computer in the same establishment, calls for the | | | | sources. |
| networking of computers, a network technician, and of | | | | Network security begins as soon as a user enters the |
| course proper network security, to provide security | | | | network, by authenticating the user before he or she |
| against hackers and sensitive data theft. | | | | has access to any private information belonging to the |
| To link up a group of computers in a given space, | | | | network. Authentication can vary from network to |
| there are several approaches that one can use. Some | | | | network depending on the level of security required. |
| methods are simple and cheap while others are | | | | Sometimes, for home networks, a username and |
| complicated and involve high initial cost. The options | | | | password will suffice. This is one factor security. |
| vary with the way the PCs are connected to each | | | | Two-factor security is the scanning of some object in |
| other and to the modem. Internet Service Providers will | | | | your possession that can validate your identity, for |
| mostly recommend linking the modem to a hub from | | | | example, a passkey, ATM card, security card, etc. |
| which network cables can connect the individual PCs. | | | | Three-factor security will screen the person for some |
| This might be simpler if you ignore the additional | | | | character that he or she possesses naturally. For |
| monthly costs of configuring individual IP addresses for | | | | example, retinal eye scans, fingerprint scans, etc, is |
| all the PCs, which can be quite expensive. | | | | three-factor authentication. |
| A professional network technician will suggest cheaper | | | | Following the authentication, the network technician can |
| methods of networking without involving any monthly | | | | further install a firewall to prevent unauthenticated |
| charges. However, he will also take into account the | | | | users from gaining access to information they do not |
| necessary adjustments to improve network security | | | | have the right to possess. Blocking of malware and |
| and to make it resistant towards any virus in the form | | | | Trojans has to be done by installing anti virus software |
| of malware and prevent the infiltration of any hacker | | | | or IPS systems. Depending on the requirement, |
| on your private information. | | | | network technicians will install the appropriate software |
| There are two types of security that have to be | | | | to ensure that there is no threat towards your |
| installed by the network technician, namely information | | | | network under any circumstances. |