Page 72 - TechPluse_C7_Flipbook
P. 72

Clickipedia

                        ✶  Most of the malware programs are distributed over the Internet, often bundled with

                          other software.
                        ✶  The best way to guard against malware is to install antivirus software.



                      ANTIVIRUS

                  An antivirus program is a software which can detect the presence of a virus on a computer and
                  remove the virus. Eradicating a virus is the term used for cleaning a computer.

                  There are several methods of eradication:
                      ✶ Removing the code in the infected file which corresponds to a virus.

                      ✶ Removing the infected file.
                      ✶ Quarantining the infected file, which involves moving it to a location where it cannot be run.
                      ✶ Inform the user about the presence of the malware and the action that has been taken.
                      ✶ Separate all the infected files and applications so that the infection cannot spread further.
                  Some well-known  antivirus  programs  are  Norton,  AVG,  McAfee,  Symantec,  SmartDog,
                  Kaspersky, etc.

                      FIREWALL

                  The term ‘firewall’ originally referred to a wall intended to confine a fire or potential fire
                  within a building. In computer, a firewall is a software or hardware-based network security
                  system that controls the incoming and outgoing network traffic based on applied rule set.
                  A firewall acts like a gatekeeper and prevents unauthorised access to a computer network.
                  It inspects every data packet that arrives at a network and decides, on the basis of a set of
                  predefined rules whether to pass or not. Firewall  establishes a barrier between a trusted,
                  secure internal network and another network (for example, the Internet) that is not assumed
                  to be secure and trusted.

                         Restart


                        Computer safety refers to the protection of computer-based  resources against
                        unauthorised use or physical damage.
                        Authentication is the process of verifying a user’s identity before granting him or her
                        access to a computer system.
                        Password protection, face recognition, voice recognition are some important techniques
                        for computer safety.
                        Malware is designed to damage or do unwanted actions on a computer system.
                        The  different  types  of  malware  are  virus,  worm,  trojan  horse,  spyware,  zombies,
                        ramsomware, rootkit and backdoor.
                        A set of programs that identify and remove malware are known as antivirus software.
                        A firewall is a type of security program or hardware that prevents unauthorised access
                        to a computer network.


               70       Premium Edition-VII
   67   68   69   70   71   72   73   74   75   76   77