Cybersecurity Questions
A firewall is a network security device that acts as a barrier between an internal network and external networks, such as the internet. It monitors and controls incoming and outgoing network traffic based on predetermined security rules.
Firewalls protect against cyber attacks by examining the data packets passing through it and determining whether to allow or block them based on the established rules. They can prevent unauthorized access to a network by blocking malicious traffic, such as viruses, malware, or unauthorized connection attempts. Firewalls also help in detecting and blocking suspicious activities, such as port scanning or denial-of-service attacks. By enforcing security policies, firewalls play a crucial role in safeguarding networks and systems from potential cyber threats.