Information security is more than just keeping information from getting into the wrong hands. Manage information from being accessed, used, shared, disrupted, changed, inspected, recorded, or destroyed. Information can be anything, such as Your details, your social media profile, the data on your phone, your biometrics, etc. So, Information System Security covers a wide range of research fields. Such as cryptography, mobile computing, cyber forensics, online social media, etc.

What is information system security?

Information system security refers to businesses’ methods and practices to keep information safe (or InfoSec). InfoSec is a field that is growing and changing quickly. It includes testing and auditing to the security of networks and infrastructure. This also has policy settings that stop people who shouldn’t be able to access data from doing so.

Information security protects sensitive data from being accessed, changed, or recorded without permission and from being disturbed or lost. The goal is to protect important data, such as information about customer accounts, finances, and intellectual property.

Security events can lead to the theft of private information, changes to data, and deletion of data. Attacks can stop work, hurt a company’s reputation, and cost money.

Organisations should set up a budget for security. They should ensure they are ready to recognise, respond to, and stop threats like phishing, malware, viruses, and ransomware.

What are the regulations for information security?

Information security is all about keeping information private, making sure it is correct, and making sure it is accessible. Every part of the information security programme must follow more than one of these rules. Their group name is the CIA Triad- Integrity, Availability, Confidentiality.

Integrity– Integrity is keeping data accurate and complete means best Information System Security. This defines data can’t change without permission. If an employee leaves an organisation, the data for that employee is in all departments. Accounts should be changed to “JOB LEFT” so that the data is complete and accurate. Only authorised people should also be able to edit employee data.

Availability- Information must be available when needed. In order to check an employee’s leave balance, for example, it would take the combined efforts of many departments within an organisation, such as those in charge of network and development operations, incident response, policy and change management, and so on. 

A denial-of-service attack is one of the many things that can make it harder for people to get to data.

Confidentiality- When we say, “keep something secret,” we mean to hide it from people who might want to know. Let’s pretend I use a password to get into my Gmail account, but that password was stolen while logging in. If that’s the case, my password has been stolen, and my account’s privacy has been broken.

Information security programmes are based on a further rule other than this one. This is called “non-refutation.”

Non-repudiation– Because of this, neither party can say they did not send or receive a message or complete a transaction. Non-repudiation is based on data that has been checked to ensure it is accurate and complete. In cryptography, for example, it is enough to show that the sender sent the message. It matches the digital signature signed with the sender’s private key. This proves that it did not change the message while in transit.

Authenticity– This means ensuring that users are who they say they are. Also, all inputs coming into the system come from trusted sources.

If you follow this rule, you can be sure the message and source are valid and accurate. For example, the sender sends the message with a digital signature to make using the message’s hash value and private key. Now, at the receiving end, the public key decrypts the digital signature. It makes a hash value, and the message is hashed again to make the hash value. The message received at the other end is “authentic,” or “real.” If the two values match. It’s called a “valid transmission” and best Information System Security.

Accountability– As we discussed in the section on integrity, only some employees should be able to change the data of other employees. This means that an entity’s actions should be traceable to that entity alone. For this, an organisation has a separate department in charge of making these changes. When they request a change, the letter must be signed by a higher authority, like the director of a college, and the person who is given that change will be able to make it after verifying his biometrics.

Make a complete plan to protect your technology.

Overall, we will discuss Information System Security, where many organisations begin and end. The most important things to know about keeping your computer systems safe are:

User access control- The “need to know” principle necessitates a multi-tiered system of access control and the provision of system access based on this principle. Only a few people who really need them should be given administrative privileges. On mission-critical systems, you should use multi-factor authentication. All users should follow a strict password policy that requires them to change their passwords often.

Data Backups- Make sure you back up your data regularly to a safe place, preferably somewhere else. When ransomware attacks, your only protection may be your backups.

Secure configurations- You must also set the default passwords and eliminate software that isn’t being used or needed.

Security Software- Endpoint security software protects workstations and servers. It can allow a quick response to any problems. In an ideal world, security software that manages centrally to make sure it stays up-to-date.

Portable and mobile devices- You must protect your laptops, tablets, and smartphones with passwords, PINs, fingerprint, or face recognition technologies. It is strongly recommended that portable devices use encryption Information System Security.

Software management: Operating systems for workstations should be set up to install security patches as soon as they become available automatically. The only software approved and useful to your business should be on your devices.

Firewalls- Personal workstations must be firewall turned on, and “perimeter” security. This is usually taken care of by firewalls built into edge routers.

Monitoring- Always monitor computers, networks, and software to catch security problems early.

A Systematic Approach to Information Security

One of the organisation’s management team members needs to lead and drive a systematic approach that covers the whole organisation.

At TECHOM Systems, our plan is based on the rules set by the National Cyber Security Agency to enhance information system security.

The layered structure from the top-down works down and across the organisation:

• Governance: led by a senior director so that guidance and direction come from the top;
• Policies: to tell staff and technology providers what the goal, principles, and rules are for keeping data secure.
• Procedures: to turn the policies into instructions and rules to follow when needed.
• People: This includes everyone who works for or in the organisation. Technology: This includes your computer systems, networks, and data storage, all of which need to be set up and run by security policies.

Need help? Get in contact on call at +61 3 9005 6868.

Schedule a call with our best consulting officers to get the best solution and service.