10 TIPS TO STEER CLEAR FROM DAILY CYBERCRIME

| November 6, 2019

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When it comes to cybersecurity tips, we are bothered about securing social media accounts or financial accounts. Cybercrime continues to evolve, surfacing new threats that are more complex every year. Being cautious while tending to financial transactions won’t ensure that you are cyber safe. There are many digital devices that you use, different websites that you visit, and various e-commerce sites that you use for online transactions. As a victim of identity theft, you are prone to various financial and non-financial attacks. However, when you hear about the range of cybercrimes, you might find that the best option is to avoid the internet altogether. But that’s too drastic, isn’t it? Instead, a solution would be to become cyber aware and learn the basic precautions to protect yourself and your data. These precautionary measures also include learning how to respond when identifying others involved in criminal activities online.

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nexus IT group

nexus IT group’s strategic intent is to cater to the IT market from an application development, IT infrastructure, IT security, and IT communications standpoint to help our selected clients position themselves for continued success. nexus IT group is an up-and-coming IT recruiting and consulting firm that provides solutions that reduces risk, improves recruitment productivity, delivers top IT talent, and provides cost reductions to human capitol.

OTHER ARTICLES

Wormable, Unpatched Microsoft Bug Threatens Corporate LANs

Article | March 11, 2020

Microsoft is warning on a wormable, unpatched remote code-execution vulnerability in the Microsoft Server Message Block protocol – the same protocol that was targeted by the infamous WannaCry ransomware in 2017.The critical bug (CVE-2020-0796) affects Windows 10 and Windows Server 2019, and was not included in Microsoft’s Patch Tuesday release this week. The bug can be found in version 3.1.1 of Microsoft’s SMB file-sharing system. SMB allows multiple clients to access shared folders and can provide a rich playground for malware when it comes to lateral movement and client-to-client infection. This was played out in version 1 of SMB back in 2017, when the WannaCry ransomware used the NSA-developed EternalBlue SMB exploit to self-propagate rapidly around the world.

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Best Cybersecurity Tips for Remote Workers

Article | June 21, 2021

Remote working and cybersecurity risks, unfortunately, go hand in hand. As the COVID-19 pandemic appears to be far from over, cyber threats to individuals and businesses continue to loom large. The only solution at the moment is to invest in robust technology solutions that protect your network and to train employees in cybersecurity so that they develop healthy remote working practices. If you allow a bulk of your employees to work remotely, it is important to adopt a few basic habits to protect your devices and your business network from cyber criminals. Here’s a quick look at a few basic tips for remote workers that can go a long way in enhancing the overall security posture of your organisation. Passwords provide the first line of defense against unauthorized access to your devices and personal information. By creating a strong, unique password, you increase protection levels tremendously. You make it more challenging for cybercriminals to gain access and disrupt your systems networks. Rule number two is never to ignore those little pop-up windows that tell you that software updates are available for your device. Once you get such a notification, be sure to install the latest software as soon as possible. Timely software updates (including antivirus updates) help patch security flaws and safeguard the computer system. Are you busy with your work and don’t like to be distracted by such notifications? We highly suggest you encourage your employees to select auto-update for software on both mobile devices and computers. It will help you and your staff to prevent problems caused by delayed system updates.

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MERGING AND SORTING FILES IN LINUX: EASIER THAN YOU THINK

Article | November 24, 2020

There are several reasons to choose Linux over other operating systems such as Windows and macOS. Linux is an open-source, secure, and very lightweight operating system consuming minimal system resources. It also has huge community support and has a ton of distros (variants) to choose from. While we have already posted a bunch of articles on simple file handling methods in Linux, sending email from the terminal, and more, we are going to walk you through the simple yet efficient process of merging and sorting files in Linux. Just like with any other operation in Linux, there are several ways you can sort and merge the files in Linux. Choosing which method to use solely depends on the user and based on what needs to be accomplished. In this article, we will show you some easy yet powerful file sorting and merging methods in Linux while pointing out the differences and importance of each method. Cat Cat is one of the easiest and simple commands in Linux that can combine multiple files into one. All you have to do is list all the files that you wish to merge into a single file along with the new file name you wish to create. If a file with the name of the final output already exists, then it will be overwritten by the one being created. Here is a very simple implementation of cat command. $ cat file1 file2 file3 file4 > Newfile However, if you wish to append information from multiple files into an already existing file, you can use ">>" instead of ">." Below is an example $ cat file1 file2 file3 file4 >> Newfile The cat command can also be used in many ways. It is also one of the most flexible and simple ways of reading the content of the file. To view the content of a file called file1, simply use the below command. $cat file1 Join Join is another command to merge the data of multiple files. While it is as easy and simple as the cat command is, it has a catch. Unlike cat, join cannot just simple combine the data of multiple files. Instead, the command allows users to merge the content of multiple files based on a common field. For instance, consider that two files need to be combined. One file contains names, whereas the other file contains IDs, and the join command can be used to combine both these files in a way that the names and their corresponding IDs appear in the same line. However, users need to make sure that the data in both these files have the common key field with which they will be joined. There are several reasons to choose Linux over other operating systems such as Windows and macOS. Linux is an open-source, secure, and very lightweight operating system consuming minimal system resources. It also has huge community support and has a ton of distros (variants) to choose from. While we have already posted a bunch of articles on simple file handling methods in Linux, sending email from the terminal, and more, we are going to walk you through the simple yet efficient process of merging and sorting files in Linux. Just like with any other operation in Linux, there are several ways you can sort and merge the files in Linux. Choosing which method to use solely depends on the user and based on what needs to be accomplished. In this article, we will show you some easy yet powerful file sorting and merging methods in Linux while pointing out the differences and importance of each method. azure linux Shutterstock Cat Cat is one of the easiest and simple commands in Linux that can combine multiple files into one. All you have to do is list all the files that you wish to merge into a single file along with the new file name you wish to create. If a file with the name of the final output already exists, then it will be overwritten by the one being created. Here is a very simple implementation of cat command. $ cat file1 file2 file3 file4 > Newfile However, if you wish to append information from multiple files into an already existing file, you can use ">>" instead of ">." Below is an example $ cat file1 file2 file3 file4 >> Newfile The cat command can also be used in many ways. It is also one of the most flexible and simple ways of reading the content of the file. To view the content of a file called file1, simply use the below command. $cat file1 Join Join is another command to merge the data of multiple files. While it is as easy and simple as the cat command is, it has a catch. Unlike cat, join cannot just simple combine the data of multiple files. Instead, the command allows users to merge the content of multiple files based on a common field. For instance, consider that two files need to be combined. One file contains names, whereas the other file contains IDs, and the join command can be used to combine both these files in a way that the names and their corresponding IDs appear in the same line. However, users need to make sure that the data in both these files have the common key field with which they will be joined. Syntax $join [OPTION] FILE1 FILE2 Example: Assume file1.txt contains ... 1 Aarav 2 Aashi 3 Sukesh And, file2.txt contains ... 1 101 2 102 3 103 The command ... $ join file1.txt file2.txt will result in: 1 Aarav 101 2 Aashi 102 3 Sukesh 103 Note that by default, the join command takes the first column as the key to join multiple files. Also, if you wish to store the final data of the two files joined into another file, you can use this command: $ cat file1.txt file2.txt > result.txt Paste The paste command is used to join multiple files horizontally by performing parallel merging. The command outputs the lines from each file specified, separated by a tab as a delimiter by default to the standard output. Assume there is a file called numbers.txt containing numbers from 1 to 4. And there are another two files called countries.txt and capital.txt containing four countries and their corresponding capitals, respectively. The command below will join the information of these three files and will be separated by a tab space as a delimiter. $ paste numbers.txt countries.txt capital.txt However, you can also specify any delimiter by adding a delimiter option to the above command. For example, if we need the delimited to be "-" you can use this command: $ paste -d “-” numbers.txt countries.txt capital.txt Sort The sort command in Linux, as the name suggests, is used to sort a file as well as arrange the records in a particular order. Sort can also be paired with multiple other Linux commands such as cat by simply joining the two commands using a pipe "|" symbol. For instance, if you wish to merge multiple files, sort them alphabetically and store them in another file, you can use this command: $ cat file1.txt file2.txt file3.txt | sort > finalfile.txt There are several reasons to choose Linux over other operating systems such as Windows and macOS. Linux is an open-source, secure, and very lightweight operating system consuming minimal system resources. It also has huge community support and has a ton of distros (variants) to choose from. While we have already posted a bunch of articles on simple file handling methods in Linux, sending email from the terminal, and more, we are going to walk you through the simple yet efficient process of merging and sorting files in Linux. Just like with any other operation in Linux, there are several ways you can sort and merge the files in Linux. Choosing which method to use solely depends on the user and based on what needs to be accomplished. In this article, we will show you some easy yet powerful file sorting and merging methods in Linux while pointing out the differences and importance of each method. azure linux Shutterstock Cat Cat is one of the easiest and simple commands in Linux that can combine multiple files into one. All you have to do is list all the files that you wish to merge into a single file along with the new file name you wish to create. If a file with the name of the final output already exists, then it will be overwritten by the one being created. Here is a very simple implementation of cat command. $ cat file1 file2 file3 file4 > Newfile However, if you wish to append information from multiple files into an already existing file, you can use ">>" instead of ">." Below is an example $ cat file1 file2 file3 file4 >> Newfile The cat command can also be used in many ways. It is also one of the most flexible and simple ways of reading the content of the file. To view the content of a file called file1, simply use the below command. $cat file1 Join Join is another command to merge the data of multiple files. While it is as easy and simple as the cat command is, it has a catch. Unlike cat, join cannot just simple combine the data of multiple files. Instead, the command allows users to merge the content of multiple files based on a common field. For instance, consider that two files need to be combined. One file contains names, whereas the other file contains IDs, and the join command can be used to combine both these files in a way that the names and their corresponding IDs appear in the same line. However, users need to make sure that the data in both these files have the common key field with which they will be joined. Syntax $join [OPTION] FILE1 FILE2 Example: Assume file1.txt contains ... 1 Aarav 2 Aashi 3 Sukesh And, file2.txt contains ... 1 101 2 102 3 103 The command ... $ join file1.txt file2.txt will result in: 1 Aarav 101 2 Aashi 102 3 Sukesh 103 Note that by default, the join command takes the first column as the key to join multiple files. Also, if you wish to store the final data of the two files joined into another file, you can use this command: $ cat file1.txt file2.txt > result.txt Paste The paste command is used to join multiple files horizontally by performing parallel merging. The command outputs the lines from each file specified, separated by a tab as a delimiter by default to the standard output. Assume there is a file called numbers.txt containing numbers from 1 to 4. And there are another two files called countries.txt and capital.txt containing four countries and their corresponding capitals, respectively. The command below will join the information of these three files and will be separated by a tab space as a delimiter. $ paste numbers.txt countries.txt capital.txt However, you can also specify any delimiter by adding a delimiter option to the above command. For example, if we need the delimited to be "-" you can use this command: $ paste -d “-” numbers.txt countries.txt capital.txt There are several other options available for the paste command, and more information can be found here. Sort The sort command in Linux, as the name suggests, is used to sort a file as well as arrange the records in a particular order. Sort can also be paired with multiple other Linux commands such as cat by simply joining the two commands using a pipe "|" symbol. For instance, if you wish to merge multiple files, sort them alphabetically and store them in another file, you can use this command: $ cat file1.txt file2.txt file3.txt | sort > finalfile.txt The above command is going to merge the files, sort the overall content, and then store it in the finalfile.txt You can also use the sort command to simply sort a single file containing information: $ sort file.txt The command above does not change or modify the data in file.txt and is, therefore, just for displaying the sorted data on the console. There are several other ways of merging and sorting files and data in the Linux operating system. What makes Linux unique is its ability to pair up multiple commands to achieve its purpose. Once users start to make themselves acquainted with these commands, it can save a lot of time and effort while performing tasks with more precision and efficiency.

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The British government thinks process sensor cyber issues are real – what about everyone else

Article | February 16, 2020

When Joe refers to analogue devices, he is generally referring to ISA99 / IEC 62443 Level 0 devices, i.e. the sensors and actuators required in any cyber physical system. The vulnerability of these devices is often ignored as the security measures required to protect them are not purely technical but also involve physical and personnel security aspects along with process security (both of the metrology and processing by the device, as well as configuration management and control issues over the lifecycle of analogue devices). The security situation is not helped by the simplistic application of the triad of security goals (confidentiality, integrity and availability) to cyber physical systems.

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Spotlight

nexus IT group

nexus IT group’s strategic intent is to cater to the IT market from an application development, IT infrastructure, IT security, and IT communications standpoint to help our selected clients position themselves for continued success. nexus IT group is an up-and-coming IT recruiting and consulting firm that provides solutions that reduces risk, improves recruitment productivity, delivers top IT talent, and provides cost reductions to human capitol.

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