A firewall is a community safety system that screens and controls incoming and outgoing community visitors based mostly on predetermined safety guidelines. It establishes a barrier between a trusted, inside community and untrusted exterior networks, such because the Web.
Firewalls have change into important for shielding networks and programs from unauthorized entry, malicious assaults, and information breaches. They play an important position in sustaining community safety and safeguarding delicate information. By implementing firewalls, organizations can improve their cybersecurity posture, adjust to regulatory necessities, and make sure the integrity and confidentiality of their networks.