Network Security is an activity designed to protect the integrity and usability or a network and data. This includes both hardware and software technologies. This type of security is targeted towards many different threats and can stop them entering or spreading through your network.

There are many different types of network security which include:

• Access Control – Being able to recognise each user and device, then enforcing security policies. You are able to block noncompliant devices and give them limited access.
• Antivirus & Anti-malware Software – Malware can infect a network but can lie dormant. The best anti-malware programs scan for this upon entry and continually track files to find, remove and fix any damage.
• Application Security – Encompasses the hardware, software and processes that you use and close any holes and vulnerabilities that attackers can utilise.
• Behavioural Analytics – these tools automatically source out any activity that is different from the norm.
• Data Loss Prevention – DLP technologies can stop people from uploading, forwarding and printing any critical information in an unsafe way.
• Email Security – This blocks incoming attacks and controls any outbound messages to prevent loosing private and important data.
• Firewalls – Barriers that are put up between trusted internal networks and trusted outside ones, for example the Internet, and there are specific rules to either allow or block the traffic.
• Intrusion Prevention Systems – IPS scan network traffic to block attackers.
• Mobile Device Security – In the future IT companies may support corporate applications on mobile phones. This will require keeping control of the devices that are able to access the network and also configure these connections to ensure that they stay private.
• Network Segmentation – This software-defined segmentation puts network traffic into separate classifications, which ultimately makes enforcing security policies easier.
• Security Information and Event Management – The products pull together all of the information that security staff require to identify and also respond to a threat.
• VPN – This network encrypts the connection from an endpoint to a network, usually over the Internet.
• Web Security - This will control staffs’ web use, block any web based threat and deny any access to malicious websites. It can also refer to the steps that are taken to protect your own website.
• Wireless Security - To prevent any exploitation taking place you will need products that have been specifically designed to protect a wireless network.

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