What Is a Firewall? - Cisco
A firewall is a network security device that separates a trusted internal network from an external network deemed untrustworthy, such as the internet. It regulates incoming and outgoing network traffic based on preset security rules.
What Is a Firewall? - Cisco
A firewall is a network security device that monitors incoming and outgoing network traffic and decides whether to allow or block specific traffic based on a defined set of security rules. Firewalls have been a first line of defense in network security for over 25 years.
What Is a Firewall? - Cisco
A firewall is a network security device that monitors incoming and outgoing network traffic and decides whether to allow or block specific traffic based on a defined set of security rules. Firewalls have been a first line of defence in network security for over 25 years.
What Is Network Security? - Cisco
A firewall is a network security device that monitors incoming and outgoing network traffic and decides whether to allow or block specific traffic based on a defined set of security rules. Cisco offers both threat-focused firewalls and unified threat management (UTM) devices.
Cisco Security Trials and Offers
Build a future-ready security platform to power your business. Find Cisco Secure free trials and offers for Secure Firewall, Duo, Umbrella and more.
Cisco Secure Firewall
Safeguard your organization from encrypted and zero-day threats. Harmonize your hybrid and multicloud security with Cisco’s AI/ML-driven firewalls, recognized by The Forrester Wave as an industry leader.
Cisco: Software, Network, and Cybersecurity Solutions - Cisco
Cisco is a worldwide technology leader. Our purpose is to power an inclusive future for all through software, networking, security, computing, and more solutions.
Data Center Switches – Cisco Nexus
Transform your data center and cloud networking infrastructure with Cisco Nexus 9000 Series and Cisco MDS switches.
What Is Malware? - Definition and Examples - Cisco
Malware, short for malicious software, refers to any intrusive software developed by cybercriminals (often called hackers) to steal data and damage or destroy computers and computer systems. Examples of common malware include viruses, worms, Trojan viruses, spyware, adware, and ransomware.
Firewall and types - Cisco Community
2019年3月8日 · Firewalls protect a Network of Computers from being Compromised, Denial of Service and other Attacks from Hackers trying to Intrude the network from outside. A Firewall can be in the form of a Hardware or a Software on a Computer, as well.