METHODS TO PREVENT NETWORK ATTACKS
Threats to computers and networks are a major issue as long as information is accessible and transferred across the Internet. Different defense and detection mechanisms are developed to deal with these attacks 1.FIREWALL A firewall is a system of computer hardware and software that provides security to the computer network in an organisation. A firewall controls the incoming and outgoing network traffic by analysing the data and determining whether they should be allowed through or not, based on a rule set. Firewalls deny malicious data from entering into the computer networks. 2.ANTI-VIRUS SCANNERS Viruses, worms and Trojan horses are all examples of malicious software (malware). Antivirus tools are used to detect them and cure the infected system. Anti-virus software scans files in the computer system for known viruses and removes them if found. The antivirus software uses virus definition file containing signatures (details) of viruses and other malware that are known. When an ant