What Is Network Security?
Network Security is any activity designed to protect the usability and integrity of your network and data. It includes both hardware and software technologies. Effective network security manages access to the network. It targets a variety of threats and stops them from entering or spreading on your network.
How does Network Security Work?
Network security combines multiple layers of defenses at the edge and in the network. Each network security layer implements policies and controls. Authorized users gain access to network resources, but malicious actors are blocked from carrying out exploits and threats. Businesses benefit from Network Security by preventing unauthorized access to sensitive information.
Types of Network Security Services and their benefits to organizations:
Network Access Control (NAC) is a process of blocking noncompliant endpoint devices or giving them only limited access. Under this model you enforce security policies, by limiting the users who have access to your network. This way you are able to control potential attacks, by recognizing users and devices.
Anti-virus and anti-malware software
Malware or Malicious Software includes viruses, worms, Trojans, ransomware, and spyware. Malware can infect a network but lie dormant for days or even weeks. Anti-malware programs not only scan for malware upon entry, but also continuously track files afterwards to find anomalies, remove malware, and fix damage.
Any software you use to run your business needs to be protected, whether your IT staff builds it or whether you buy it. Unfortunately, any application may contain holes, or vulnerabilities, that attackers can use to infiltrate your network. Application security encompasses the hardware, software, and processes you use to close those holes.
To detect abnormal network behavior, you must know what normal behavior looks like. Behavioral analytics tools automatically discern activities that deviate from the norm. Your security team can then better identify indicators of compromise that pose a potential problem and quickly remediate threats.
Data loss prevention
Organizations must make sure that their staff does not send sensitive information outside the network. Data loss prevention (DLP) technologies can stop people from uploading, forwarding, or even printing critical information in an unsafe manner.
Email gateways are the number one threat vector for a security breach. Attackers use personal information and social engineering tactics to build sophisticated fishing campaigns to deceive recipients and send them to sites serving up malware. An email security application blocks incoming attacks and controls outbound messages to prevent the loss of sensitive data.
Firewalls put up a barrier between your trusted internal network and untrusted outside networks, such as the Internet. They use a set of defined rules to allow or block traffic. A firewall can be hardware, software, or both. Top firewall devices offers Unified Threat Management (UTM) to guard your network.
Intrusion prevention systems
An Intrusion prevention system (IPS) scans network traffic to actively block attacks. This is done by linking vast amounts of global threat intelligence, to not only block malicious activity, but also track the progression of suspicious files and malware across the network. Thus, preventing the spread of outbreaks and reinfection.
Virtual private network (VPN) encrypts the connection from 2 unaffiliated endpoints, often over the Internet. Typically, a remote-access VPN uses IPsec or Secure Sockets Layer to authenticate the communication between device and network.
A web security solution will control your staff’s web use, block web-based threats, and deny access to malicious websites. It will protect your web gateway on site or in the cloud. “Web security” also refers to the steps you take to protect your own website.
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