a person, thing, or event that acts as a barrier or protection against something undesirable: The new employee handbook should create a firewall against unethical business conduct. Digital Technology. an integrated collection of security measures designed to prevent unauthorized electronic access to a networked computer system.
Industry definition for the term Firewall. A firewall acts as defense for a local computer against viruses, worms, Trojans and brute-force hacking attacks. noun 1 A wall or partition designed to inhibit or prevent the spread of fire. ‘In a building, a firewall prevents a fire from quickly burning through, giving firefighter a chance to douse flames, and occupants a chance to find safety.’ These firewalls monitor traffic to all the computers and devices that are connected to that router’s network, meaning you can filter access to all of them with just one piece of equipment. Hardware firewalls provide essential security for the Internet of Things (IoT), like smart thermostats and smart light bulbs. The primary method for keeping a computer secure from intruders. A firewall allows or blocks traffic into and out of a private network or the user's computer.
A firewall is software used to maintain the security of a private network. Firewalls block unauthorized access to or from private networks and are often employed to prevent unauthorized Web users or illicit software from gaining access to private networks connected to the Internet. A firewall may be implemented using hardware, software, or a combination of both.
Nov 26, 2019 · A firewall is a type of cybersecurity tool that is used to filter traffic on a network. Firewalls can be used to separate network nodes from external traffic sources, internal traffic sources, or even specific applications. Firewalls can be software, hardware, or cloud-based, with each type of firewall having its own unique pros and cons.
A firewall is a fire-resistant barrier used to prevent the spread of fire for a prescribed period of time. Firewalls are built between or through buildings, structures, or electrical substation transformers, or within an aircraft or vehicle.
Jun 03, 2020 · Definition: A firewall is a network security system designed to prevent unauthorized access to or from a private network. In other words, it prevents unauthorized internet users from accessing private networks connected to the internet, especially intranets.