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Firewall is a cybersecurity solution that scrutinizes all data packets entering and leaving your network, keeping you safe from cyber threats. Its role is vital to the digital safety of your company. It acts as a vigilant barrier between trusted and untrusted networks to thwart attacks before they become real threats to your company’s integrity.

Firewalls work at the OSI layers 3 and 4, inspecting all traffic moving between a protected network and external devices, as well as between different segments within the same network. They examine and compare data packets against pre-configured rules. If a packet doesn’t meet a set of criteria, entry is denied.

The firewall also enables organizations to control bandwidth, prioritize applications and devices, and manage security policies. This ensures business-critical applications have priority over non-business activities that may be vulnerable to attack, and helps protect against potential security breaches by ensuring users are accessing only authorized information.

Some threats are difficult for firewalls to defend against, including Distributed Denial of Service (DDoS) attacks that flood servers with traffic, causing them to stop functioning. Firewalls can also be used to prevent attackers from gaining remote control of machines on your network, which could enable them to infect other computers and spread malware across your organization.

Firewalls can be implemented in a wide range of ways, from simple software to hardware solutions. It is important to choose a solution that will offer you the best mix of features, such as network segmentation, advanced application controls, and bandwidth prioritization. It is also important to update the firewall often as threats and security requirements change.