How do firewalls enhance cybersecurity?

Firewalls enhance cybersecurity primarily by monitoring and controlling network traffic. They act as a barrier between a trusted internal network and untrusted external networks, such as the internet. By examining incoming and outgoing packets of data, firewalls can determine whether to allow or block specific traffic based on predefined security rules. This capability helps to prevent unauthorized access, mitigate attacks, and protect sensitive information from being exposed to threats.

In addition to blocking potential intrusions, firewalls can log and analyze traffic patterns, providing insights into potential security breaches or unusual activity that may need further investigation. This functionality makes firewalls a critical component of a comprehensive cybersecurity strategy, as they help maintain the integrity and confidentiality of the network environment.