What do you understand by the term Network Security?
Improve Network Security: Network security refers to the set of rules and layout designed for protection, maintaining confidentiality and providing easy accessibility to the computer networks and databases using software(s) or hardware(s) technologies.
It also briefly hints at the access to an immense scale of tech, processes and devices. Every organisation or business irrespective of the kind, scale or economy requires a certain aspect of network security to protect it against cyber threats, which is pretty common in today’s time period.
Network architectures in this age are super complex therefore constantly face threat from the ever-changing environment as hackers are always looking for areas to exploit and discover vulnerabilities.
Vulnerabilities exist in multiple areas i.e. they can be found in hardware, databases, apps and sometimes in users or locations too. In order to affix and prevent these threats or areas of exploits, network management and security tools are used.
What are the different types of Network Security?
A. Access Control:
Only specific personnel should have complete accessibility to the databases or the network. Access should be granted once the admin has complete detail of the pupil who is granted the access key.
Network Access Control ensures only a few authorised people will be granted access to these databases, other crucial resources or the network gateways.
Antiviruses make sure that any kind of malicious software or hardware is denied access to the network or even cause risk databases. Trojans, Worms, and malware are a few viruses that are identified and immediately removed by antivirus.
They make sure the entry point is protected from malware but, if it still finds a loophole to enter the device antiviruses still execute them before any major issue is caused.
C. Cloud Security:
Most organisations have entered partnerships with cloud security tech firms since they provide secured yet enormous servers for storing information or databases of any kind. The data is protected and the security firm takes full liability for protection.
Tons of businesses have adopted SaaS apps for giving their employees permission to access the databases stored on the “cloud”.
What are the different types of characteristics of Network Security?
I. Privacy: Having the confidential transfer of databases, requests or information end-to-end is termed privacy.
The messages transmitted should be sent to only the intended receiver, i.e having end-to-end encryption is essential, if a 3rd party is allowed to access the intended messages then it is called a breach of privacy or unprotected network.
II. The integrity of the message: It refers to data arriving in the receiver end in the same format it was sent. No changes in the content should occur during the transmission period, irrespective of whether it was an accident or for malicious intent.
In this digital age, the use of digital banking and currency exchange has increased, therefore the integrity of data is of utmost importance now.
III. Authentication at End-point: Authentication refers to the confirmation of identity i.e. that the receiver isn’t getting ghosted, and has some kind of knowledge or acquaintance of the sender’s. Thus eliminating the risk of imposter sending the message.
IV. Non-Repudiation: It refers to the receiver being able to provide information about whether the received message is being sent from a specific sender or not.
Therefore it makes sure that the sender isn’t in a position to deny the action of sending the message, i.e., during a case of transferring money from one account to another, the bank has all the receipts of the customer who has requested transfer of funds.
Vulnerabilities or Threats to Network Security.
1. Computer Virus:
Viruses are the most generic networking threats when talking about cybersecurity. More than 33% of personal computers have been affected by one or another class of malware, among which viruses are the most common.
It refers to software(s) that are developed to replicate and spread, with the intention to infect your computer databases and applications. As it is often sent using email attachments or downloading files from unauthorised websites, and many other methods.
Viruses once activated will send spam messages to your contact lists, disable your security network and setting, corrupt or steal databases/information from your computer like passwords and other personal info. Some can even format your entire hard drive.
2. Trojan Horse:
It refers to the method of sending attack-based codes or software that will trick the users into willingly executing the code, as it masks itself as a legitimate application.
It can be termed as a scam since it will use details from a known contact and send you an email that contains trojan and as soon as you open the email, you’ve downloaded the malware on your PC.
It can spread through false advertisement websites. “Trojan Horse” will record your data logs, passwords or even hijack your webcam, worst-case scenarios would include stealing non-disclosed information you may have on your computer.
3. Computer Worm:
In today’s generation, we rarely see articles or cases about worm attacks, but these are some of the most basic networking threats.
These are pieces of malware programs that replicate(s) in quick succession and spread rapidly from one server to another, or from one device to another.
It often spreads from one infected computer since it sends spam emails containing malware to the contacts of that infected computer. But, not all worms are developed to create chaos, as it has some other technical uses too.
Since you now know about the threats your network might face, here are 10 methods through which you can improve your Network Security.
1. Proving Training and Appropriate Awareness to Employees:
Giving daily reminders or pop-up updates regarding possible network breaches and internet vulnerabilities is considered a valuable security strategy.
This helps build awareness for the threat to networks, potential breaches and processes to avoid letting any malware infect training sessions or departmental processes. Hosting monthly camps on internet security can also be considered.
2. Safeguarding Your Drives against suspicious giveaways:
There are tons of scams involving giving away U.S.B. drives, or picking up unknown flash drives from local areas since when this drive is inserted into your computer, it will have software that will automatically gather your personal data and files, passwords or any other confidential stuff you might possess in your computer and send it to pre-determined contacts which might cause harm to you and your family. Thus be smart and avoid such scenarios of gaining free stuff from the unknown.
3. Be cautious while responding to emails:
Since emails are massively utilised by hackers to send and spread malware that might carry worms or trojans. As most of these emails look really convincing as they might make employees believe them and click through.
Cases of phishing are also frequent since a site that looks similar to their bank or other important daily visited sites will ask for a user id, passwords or other crucial details. T
herefore one needs to be really cautious while opening emails from unknown websites and should be marked as SPAM or reported.
4. Avoiding Unprotected Websites or Networks:
It is really important to avoid visiting websites which are not safe or have network vulnerabilities. As attacks tend to exploit the weaknesses it finds on the website or in the company(s) network system, it looks for a gateway through which they can pass the malware inside the system.
5. Monitoring Suspicious Employee Activities.
In certain cases, it is found that employees exploit the company they are working at from within. As reports of stealing software which was utilised in high-speed trade gigs.
Therefore the chief staff should be wary of such incidents that might take place and must keep an eye on any employee if they show suspicious actions or behaviour.
6. Looking for Software Vulnerabilities.
Every IT company and even companies from other sectors, those who use cloud computing have access and use tons of software applications from different services providers.
Now there are apps and software(s) which are directly or indirectly connected to the company’s main network system or at least the Internet.
Admins of these Network services have to keep monitoring all the software updates and check for possible vulnerabilities, if found they should immediately report the issue and fix the error.
7. Watching for Anomalies that might take place in Network Traffic.
Always have a keen eye on any kind of unusual network traffic, especially those locations where crucial information or databases is being stored.
As hackers might look for DDoS attacks or Brute Force to inject malware into the network and hijack or corrupt the entire server or network.
Therefore if you see unusual traffic always inquire with the engineers immediately and disconnect the server in order to stop malicious activities from taking place.
Is the information on security an IT issue?
Information security cannot be termed as an IT issue, since it is more of an organisational issue. IT gives security to all central system networks. Units must possess a certain significant number of autonomy to finish operational objectives.
Every unit has its own responsibility to manage and security positions. the balance between the need for information security and the requirement for information to use can be termed Security.
It refers to the importance of database availability and the integrity of the business and operation(s) effectiveness.
It is the reflection of integrity and the availability of data concerns. Database or information criticality ranks higher for its availability and integrity concerns.
Process of managing data safely?
Managing data safely, the best method is recognizing that it’s a crucial aspect of one’s job responsibilities therefore it has to be incorporated into the workplace routine.
Understanding safe computing and exchange of information behaviour, along with being mindful of how your effective actions are taken towards the security of databases and network securities.
Having knowledge of different databases being used and places of implementations is the basic step. This helps you maintain a clean system pipeline and also respond to possible vulnerabilities faster.
What are the I.T. security responsibilities?
All members of the company whether it be the interns, faculty members, or even staff has to be responsible enough when it comes to protecting I.T. resources, which they use, access or maintain.
Access to databases, information, software or hardware devices, or even the network systems has to be treated like a privilege, and those who access them has a responsibility to use it being aware and in line with shared information and databases and might have to go through security procedures and methods if there is any kind of vulnerability outbreak.
Briefly explain encryption?
It refers to the process of protecting files, data, software and hardware devices. While the term encrypts a file means that you “lock” the files or data with a password or some kind of encryption key.
This key is present in a scramble format (Hash value) and is almost unreadable without using the appropriate encryption key or the password.
The Faculty or the staff are required, during the process of encrypting portable devices such as ( smart tablets, smartphones, laptops or any kind of removable storage devices or even highly confidential information regarding your business or company.
IT departments recommend that nearly every member of the company encrypt their personal devices or any other sensitive files to them in order to protect them from hackers or data thieves.