Internet and computer brings both good and bad effects in equal measures. It creates security challenges. Computers used in homes, education, business, and in government offices are prone to risk of internet threats. We can perform so many things like online shopping, banking transactions, reserving tickets, join raffles, etc. A firewall is hardware, software or a combination of both that is used to prevent unauthorized programs or hackers to access a private network. It is an internet security device or set of devices. Routers that transfer the data between networks have firewalls to secure the information and the system.
Depending upon the necessity, the firewall is divided into network level firewalls, circuit level firewalls, and application level firewalls. There is software that provides firewall protection to your PC. Some of them are
Norton internet security 2011 offers a powerful two way firewall that protects your computer against all threats and hackers. It will not allow the personal information to leave your computer without your knowledge. This firewall allows you to change the dynamics of the website you view. You can instantly turnoff the pop-ups, cookies and quick configure your security settings. It is easy to use and install. It is one of the top software firewall.
Sunbelt personal firewall will help you to browse, download files, and do social networking without the fear of threats or hackers. The un-obstructive firewall gives enhanced phishing and malware protection. It is vital for desktop PCs linked to broadband internet with satellite, Wi-Fi, ISDN, cable or DSL modems. It also catches the malware that the inbuilt firewall misses.
Kaspersky internet security firewall applies to all network connections. Protection against threats is performed at two levels-Network level and application level. It breaks down the entire network into security zones to make rules that are user-friendly. Depending on the firewall protection levels there are two firewall rule types-packet rules that create restrictions regardless of applications and rules for applications that create restrictions on network activity for specific application.
Bit defender firewall is known for its award winning solid protection against malware, phishing attacks and spam. It is easy to install and use. It works effectively against Trojans, spyware, hackers and viruses. Virus bulletin gave bit defender 100% distinction award for its security. All emails, instant messaging conversations are scanned in a real-time mode which means that it will prevent identity theft.
McAfee internet security firewall detects and blocks threats caused to the computer through internet. It also detects the invisible threats that are not detected by other firewalls. The latest firewall version discovers and controls thousands of network applications based on user profiles. It is the excellent firewall that secures incoming and outgoing information from the computer.
Zone Alarm internet security firewall device will impede hackers, block email spammers, internet website snoops, viruses, spyware, website pop-ups, and provide advertisement blocking. It is simple to install and use. It provides a triple protection firewall which protects the hardware and operating system. Smart security protection provides your PC with real-time security notices and fresh attack resistance capabilities. It has automatic wireless protection that regularly detects wireless internet networks and protects computer from the pests.