What is IT security? 

What is IT security? 

What is IT security? 

IT security is all about “data security.” The IT security specialist will focus on the integrity, confidentiality, and availability of the data. In the present time, numerous volumes of data remain in the PCs, laptops, servers or somewhere on the internet. However, in the late 90’s, before all sensitive data was transferred online, it was sitting in a filing cabinet. Today, IT security software is involved in making sure data in any form is kept secure and is a bit broader than cybersecurity. So, essentially an IT security expert need not be a cybersecurity expert!

IT security is a set of cybersecurity strategies that prevents unauthorized access to organizational assets such as computers, networks, and data. It maintains the integrity and confidentiality of sensitive information, blocking the access of sophisticated hackers.


Hackers are smarter these days, thereby it is important to implement efficient IT security software that can prevent computer systems from the online dangers. Online fraudsters aim at stealing or damaging the hardware, software or electronic data.

How do I benefit from IT security?

Ever since the advent of the Internet of Things (IoT) and the rise of the cloud – enterprises (small & big) are facing increased vulnerabilities. The other reasons could be that they are less monolithic, legacy architectures and more distributed, microservice-based networks.

Overall, computers play a vital role in the management of all businesses. When IT security software fails, each and every element of the business will be exposed to online threats. In such situations, it is likely to impact on the productivity, profits and customers experience, so, clients may also opt for other companies. With all these things happening in the background- financial losses will increase by the minute. Not to forget, IT Security isn’t just a quality parameter; it can cause a havoc if not chosen carefully. Besides that, it also requires revisiting at regular intervals.


IT security prevents malicious threats and potential security breaches that can have a huge impact on your organization. When you enter your internal company network, IT security helps ensure only authorized users can access and make changes to sensitive information that resides there. IT security works to ensure the confidentiality of your organization’s data

What it Cyber Security?

Cybersecurity is a subset of IT security. Besides the fact that it is all about shielding that data which resides in the electronic form. The other aspects of it are to identify what the essential data is, where it resides, and the measures that need to be implemented in order to safeguard it. In the process, the Cybersecurity is bound to defend an organization’s networks, computers, and data from unlawful digital access, assault or vandalism by incorporating multiple technologies, processes, and regulations.

Cyber security refers to the body of technologies, processes, and practices designed to protect networks, devices, programs, and data from attack, damage, or unauthorized access. Cyber security may also be referred to as information technology security.

The Importance of Cyber Security

Cyber Security is important because government, military, corporate, financial, and medical organizations collect, process, and store unprecedented amounts of data on computers and other devices. A significant portion of that data can be sensitive information, whether that be intellectual property, financial data, personal information, or other types of data for which unauthorized access or exposure could have negative consequences. Organizations transmit sensitive data across networks and to other devices in the course of doing businesses, and cyber security describes the discipline dedicated to protecting that information and the systems used to process or store it. As the volume and sophistication of cyber attacks grow, companies and organizations, especially those that are tasked with safeguarding information relating to national security, health, or financial records, need to take steps to protect their sensitive business and personnel information. As early as March 2013, the nation’s top intelligence officials cautioned that cyber attacks and digital spying are the top threat to national security, eclipsing even terrorism.


What is the difference between IT security and information security (InfoSec)?

Although IT security and information security sound similar, they do refer to different types of security. Information security refers to the processes and tools designed to protect sensitive business information from invasion, whereas IT security refers to securing digital data, through computer network security.

What are the threats to IT security?

Threats to IT security can come in different forms. A common threat is malware, or malicious software, which may come in different variations to infect network devices, including:

  • Ransomware
  • Spyware
  • Viruses

Types of IT security

Depending on which experts you ask, there may be three or six or even more different types of IT security. Each security expert has their own categorizations. Furthermore, as networks continue to expand with the cloud and other new technologies, more types of IT security will emerge.

However, for the most part, there are three broad types of IT security: Network, End-Point, and Internet security (the cybersecurity subcategory). The other various types of IT security can usually fall under the umbrella of these three types.

Network security

Network security is used to prevent unauthorized or malicious users from getting inside your network. This ensures that usability, reliability, and integrity are uncompromised. This type of security is necessary to prevent a hacker from accessing data inside the network. It also prevents them from negatively affecting your users’ ability to access or use the network.

Network security has become increasingly challenging as businesses increase the number of endpoints and migrate services to public cloud.

At its simplest, network security refers to the interaction between various devices on a network. This includes the hardware and the software. 

For thorough network security, start with configuration. Make sure that from the get go all device configuration incorporates reasonable preventative measures. Next, put in place a detection system. For example, detection software analyzing logins could check for irregularities. Finally, set up response protocol for if and when a breach occurs. This will ensure smooth communication and hopefully minimize the damages of the network insecurity.

Some common methods of network protection include two-factor authentication, application whitelisting, and end-to-end encryption. Additionally, using a security framework, such as NIST’s cybersecurity framework, will help ensure best practices are utilized across industries. Whether the framework is more cybersecurity or IT based is a marginal concern, the key is to have some set of guidelines to follow when setting up or improving security operations.


Internet security

Internet security involves the protection of information that is sent and received in browsers, as well as network security involving web-based applications. These protections are designed to monitor incoming internet traffic for malware as well as unwanted traffic. This protection may come in the form of firewalls, antimalware, and antispyware.

Internet security, as noted above, tends to fall under the name of cybersecurity. It deals largely with the transit of information. For example, imagine you send an email, and while that message is in transit, a third party sweeps in and takes it before the message is delivered to its intended recipient (i.e., man-in-the-middle attack). Such hijackings are just one of many examples of crimes regarding the Internet. In such a case encryption serves as one method of defense, making any stolen information significantly less valuable to the perpetrator.

In particular, Secure Sockets Layer (SSL) and Transport Layer Security (TSL) are forms of encryption and authentication commonly used by business for their online platforms. They create public and private keys when interactions with customers take place, ensuring the integrity of the data during transactions. Sites using such encryption methods will usually have https in the address bar along with a small lock icon. Other common security measures for the Internet include firewalls, tokens, anti-malware/spyware, and password managers.

Beyond network, end-point and Internet security, the introduction and expansion of the cloud and the extensive application market also warrants attention. Cloud security parallels on premise security procedures in that the goals are generally the same – to protect stored date and data in transfer. The main difference lies in the expansion of the security “border.”

Endpoint security

End-point security provides protection at the device level. Devices that may be secured by endpoint security include cell phones, tablets, laptops, and desktop computers. Endpoint security will prevent your devices from accessing malicious networks that may be a threat to your organization. Advance malware protection and device management software are examples of endpoint security.

End-point protection software may include privileged user control, application controls, data controls, intrusion detection, and encryption. Encryption ensures the integrity of data being transferred, while application security controls protect against dangerous downloads on the user’s end. Furthermore, security departments typically install such software not only on the device in question, but also on the company’s server. When a security update occurs, the central server pushes the update to all end-point devices, thus ensuring a certain level of security uniformity. Likewise, having a central sign-in page allows enterprises to monitor who logs on and tracks any suspicious behavior.

Cloud security

Applications, data, and identities are moving to the cloud, meaning users are connecting directly to the Internet and are not protected by the traditional security stack. Cloud security can help secure the usage of software-as-a-service (SaaS) applications and the public cloud.  A cloud-access security broker (CASB), secure Internet gateway (SIG), and cloud-based unified threat management (UTM) can be used for cloud security.

Application security

With application security, applications are specifically coded at the time of their creation to be as secure as possible, to help ensure they are not vulnerable to attacks. This added layer of security involves evaluating the code of an app and identifying the vulnerabilities that may exist within the software.

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