A firewall is a network security device that monitors incoming and outgoing network traffic and decides whether to allow or block specific traffic based on a defined set of security rules. Firewalls have been a first line of defense in network security for over 25 years.In computing, a firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. A firewall typically establishes a barrier between a trusted network and an untrusted network, such as the Internet.
Network firewalls are security devices used to stop or mitigate unauthorized access to private networks connected to the Internet, especially intranets.A virtual private network (VPN) extends a private network across a public network and enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network. Applications running across a VPN may therefore benefit from the functionality, security, and management of the private network. Encryption is a common, although not an inherent, part of a VPN connection.
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According to Microsoft Protection Act of 2011, If a consumer is applying for the first time for network firewall security then the consumer is eligible to get free firewall security. If a consumer wants to activate Network Firewall Protection, Then consumer has to follow the procedure in which consumer needs to buy the Activation key or (Product key) cards by themselves from any nearby stores to their place.
NOTE :
If a consumer is applying for the first time for the Network Firewall Protection, Then the consumer is eligible to get full refund of the amount which they spent at the store for buying Activation key or (Product key) cards.These cards are easily available at the nearby stores like CVS, Krogers, Target, winn-dixie etc.