What are security services? ITU-T defines a service as an application that is offered by an independent layer in network communication and which ensures sufficient security for data transfers or the networks themselves, as defined by ITU-TC X. 800 recommendations. Security services can be offers by companies themselves or by independent third-party vendors who contract with the organizations to provide such services. Service providers are responsible for designing, building, maintaining, troubleshooting, configuring and operating the networks. Some service providers have been involved in designing and deploying their own private clouds, while others work as resellers and integrate security services offered by other vendors into their own private clouds.
Network security is more than just protecting information from unauthorized access. It refers to a set of policies that control the policies implemented to ensure the security of a network. This policy may restrict access of files from unauthorized sources, restrict the access of processes and users, control the use of software and hardware, prevent unauthorized modification of code and so on. The policies may be categorized as security management, security access management, access control, firewall protection, and intrusion detection and prevention.
Let’s take a brief look at the different types of security services and their applications. As already explained in the main article, the most common form of security services is encryption. The process of making data difficult to read or decipher without the knowledge of the recipient is called encryption. Encryption is an important aspect of all Internet security because it prevents hacking and tampering of systems and prevents unauthorized connection of computers. There are two forms of encryption: data encryption and connection encryption. Data encryption involves a system that secures all the data sent over the Internet, while connection encryption involves measures to protect the communication between Internet-connected computer and servers.
Another major aspect of security services is the securing of networks. A security architecture consists of various devices that work together to secure networks. The most common components of the security architecture are firewall devices, anti-virus software, intrusion detection and prevention equipment, and so on. Firewalls can either interfere with the normal flow of network traffic or act as a blocking device. They prevent unauthorized access and unauthorized use of computers and information contained in the network.
Managed security services help to protect the network and also identify, prevent, and mitigate security threats. Managed security services provide visibility and notification of new security threats and vulnerabilities, and the ability to respond to them quickly and efficiently. For companies operating in a large area or relying on multiple networks, this capability can be very handy. Many companies are also using security threat intelligence (SIS) to track criminal activity and other security threats. By tracking criminals via the Internet, companies can identify new attacks, countermeasures, and vulnerabilities, which can lead to improved security and efficiency.
As part of their threat intelligence activities, many companies have started to conduct vulnerability assessments and cyberdefense training for their employees. Vulnerability assessments identify the vulnerability and what it can do to an organization’s system. Cybersecurity training helps the employees to deal with the vulnerabilities that they may come across while dealing with hackers. Most companies conduct both vulnerability assessments and cybersecurity training. However, vulnerability assessment requires a thorough knowledge of Internet security to evaluate the risk of a particular vulnerability. In cybersecurity training, the threat is evaluated from the hacker’s point of view.
A comprehensive security services package involves performing a number of function and activities that help to defend a business against external threats. It includes Digital Signature Management and Digital Access Control (DAC). Digital Signature is the mechanism that authenticates the digital signature of documents before transmission over the Internet. Digital Access Control (DAC) is a mechanism that restricts or prohibits a user from accessing a specific data or application on a network.
Security services providers analyze the threat and develop security mechanisms based on the analysis. Usually, security services vendors provide DDoS protection, content filtering, virtual private LAN service (VPLS), and intrusion detection and prevention (IDS/IDS-like mechanisms). In addition, DDoS protection is available for organizations using a hybrid model that combines traditional firewalls with IP enabled security services for organizations with legacy networking equipment.