A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. It establishes a barrier between a trusted, internal network and untrusted external networks, such as the Internet.
Firewalls have become essential for protecting networks and systems from unauthorized access, malicious attacks, and data breaches. They play a crucial role in maintaining network security and safeguarding sensitive data. By implementing firewalls, organizations can enhance their cybersecurity posture, comply with regulatory requirements, and ensure the integrity and confidentiality of their networks.
