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What is network security & why is it important?
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Learn what network security is and why it is important for protecting computer networks and systems from cyberthreats. Explore the different types of network security technologies, such as firewalls, VPNs, IDPSs and more.
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- Firewalls. 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.
- Intrusion prevention systems. An intrusion prevention system (IPS) scans network traffic to actively block attacks. Secure IPS appliances do this by correlating huge amounts of global threat intelligence to not only block malicious activity but also track the progression of suspect files and malware across the network to prevent the spread of outbreaks and reinfection.
- Workload security. Workload security protects workloads moving across different cloud and hybrid environments. These distributed workloads have larger attack surfaces, which must be secured without affecting the agility of the business.
- NetWORK security. NetWORK security is Cisco's vision for simplifying network, workload, and multicloud security by delivering unified security controls to dynamic environments.
Network security protects your network infrastructure from data theft, unauthorized access, and manipulation. It also includes network segmentation for security, which involves dividing your network into regions by using firewalls as borders. Learn how network security works, its benefits, types, tools, and threats.
- What is network security?Network security is made up of a variety of applications, configurations, and tools implemented to protect the integrity of your network from unaut...
- Why do enterprirses need network security?Vulnerabilities in your network security give hackers an opening to do untold damage to your network while exposing potentially sensitive and confi...
- How does network security work?A computer network provides communication and enables the sharing of information to multiple users within a network. Network security technologies...
Learn what cybersecurity is and why it matters for individuals and organizations. Explore the types of cybersecurity domains and threats, and how IBM can help you protect your systems and data.
- What Is Network Security?
- Types of Network Security
- Network Security Capabilities and Policies
- How Can You Benefit from Network Security?
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Network securityrefers to the tools, technologies and processes that protect an organization’s network and critical infrastructure from unauthorized use, cyberattacks, data loss and other security threats. A comprehensive network security strategy leverages a combination of advanced technologies and human resources to prevent, detect, contain and r...
Next-generation firewall
For many organizations, the first line of network protection is a next-generation firewall (NGFW). Like a traditional firewall, a NGFW inspects all incoming and outgoing network traffic and creates a barrier between internal and external networks based on trust principals, rules and other administrative settings. A NGFW also includes additional features like application awareness and control, intrusion prevention and threat intelligence services. While an NGFW is a critical component within t...
Next-generation antivirus
Next-generation antivirus (NGAV)is a network security tool that uses a combination of artificial intelligence, behavioral detection, machine learning algorithms and exploit mitigation, so known and unknown threats can be anticipated and immediately prevented. NGAV is cloud-based, which allows it to be deployed quickly and efficiently, reducing the burden of installing and maintaining software, managing infrastructure and updating signature databases for the IT or information security team.
Virtual private network
A virtual private network (VPN) is a security tool that encrypts the connection from an endpoint to an organization’s network, allowing authorized users to safely connect and use the network from a remote setting. VPNs usually leverage advanced authentication methods to ensure both the device and user are authorized to access the network.
Since no single tool or technology is capable of providing complete protection, organizations must take a multifaceted approach to network security. Here we explore some common network security capabilities and policies that can be integrated to prevent a variety of digital threats, as well as enhance detection, containment and remediation efforts.
Network security is of critical importance given the rise in cybercrime over the past several decades. The growing trend of remote-based work, as well as the shift to the cloud, has expanded the attack surface, giving cybercriminals a wider range of targets and entry points to the network. For many businesses, interruption of network service can re...
Learn what network security is and how it protects an organization's network and critical infrastructure from cyberattacks. Explore the main components, tools and policies of network security and how they can prevent, detect and respond to threats.
Cybersecurity is the practice of protecting systems, networks, and programs from digital attacks. Learn about the types of cyber threats, the importance of cybersecurity, and the Cisco products and services that can help you stay safe online.
Network security consists of the policies, processes and practices adopted to prevent, detect and monitor unauthorized access, misuse, modification, or denial of a computer network and network-accessible resources. [1] . Network security involves the authorization of access to data in a network, which is controlled by the network administrator.
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