Slamming Spam with Symantec Email Security.cloud

| April 26, 2016

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Staff at Brazil's fast-growing supermarket company Grupo Angeloni now save 5-10 minutes a day that they once spent cleaning their mailboxes of spam. It's the result of replacing their previous antispam solution with Symantec Email Security.cloud

Spotlight

eSentire

eSentire® is an industry leader, providing managed detection and response services to mid-sized organizations, keeping them safe from constantly evolving cyber-attacks that traditional security defenses simply can’t detect. eSentire combines people, process, and proprietary technology to deliver an unmatched, premium-level service that hunts, detects, remediates, and communicates sophisticated cyber threats in real-time, 24x7. Protecting more than $3.2 trillion in Assets under Management, eSentire is the award-winning choice for security decision-makers in mid-size enterprises. eSentire has received multiple accolades for exceptional service, including Hedge Fund Manager (HFM) Service and Technology awards, listed on Deloitte’s Technology Fast 50™ and Fast 500™ lists, and named a leader in the 2016 “Market Guide for Managed Detection and Response Services” by Gartner, Inc. For more information, visit www.esentire.com and follow @esentire.

OTHER ARTICLES

Malicious coronavirus map hides AZORult info-stealing malware

Article | March 11, 2020

Cyberattackers continue to seize on the dire need for information surrounding the novel coronavirus. In one of the latest examples, adversaries have created a weaponized coronavirus map app that infects victims with a variant of the information-stealing AZORult malware. The malicious online map, found at www.Corona-Virus-Map[.]com, appears very polished and convincing, showing an image of the world that depicts viral outbreaks with red dots of various sizes, depending on the number of infections. The map appears to offer a tally of confirmed cases, total deaths and total recoveries, by country, and cites Johns Hopkins University’s Center for Systems Science and Engineering as its supposed data source. Malwarebytes issued a warning about the map last week, and Reason Cybersecurity this week has followed up with its own blog post, reporting additional details on the scam, gathered by Reason Labs researcher Shai Alfasi.

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Cybersecurity: Five Key Questions The CEO Must Ask

Article | December 15, 2020

Just about every single day, somewhere in the world, a company falls victim to cyber attackers, even with millions spent on cybersecurity. Every company is a target because they have data and there are too many doors, windows and entryways for cyber attackers to get in, whether on-premise or in the cloud. It is not a question of if, but when, the attackers will get in. Prevention efforts are of course important, but since attackers will get in, equal attention must be on detection going forward. And the focus must be on early detection, otherwise, it will be too late. My book, Next Level Cybersecurity, is based on intensive reviews of the world’s largest hacks and uncovers the signals of the attackers that companies are either missing or don’t know how to detect early, apart from all of the noise. So, the attackers are slipping by the cybersecurity, staying undetected and stealing data or committing other harm. In the book I explain the Cyber Attack Chain. It is a simplified model that shows the steps that cyber attackers tend to follow in just about every single hack. There are five steps: external reconnaissance; intrusion; lateral movement; command and control; and execution. At each step, there will be signals of the attackers’ behavior and activity. But the signals in the intrusion, lateral movement and command and control steps provide the greatest value because they are timely. The external reconnaissance step is very early and the signals may not materialize into an attack, while detecting signals in the execution step is too late because by this time the data theft or harm will have already occurred. My research uncovered 15 major signals in the intrusion, lateral movement and command and control steps that should be the focus of detection. My research of the world’s largest hacks reveals that if the company had detected signals of the attackers early, in the intrusion, lateral movement or command and control steps, they would have been able to stop the hack and prevent the loss or damage. My book shows how to detect the signals in time, using a seven-step early detection method. One of the key steps in this method is to map relevant signals to the Crown Jewels (crucial data, IP or other assets). It is a great use case for machine learning and AI. There is a lot of noise, so machine learning and AI can help eliminate false positives and expose the attackers’ signals early to stop the hack. There are two blind spots that just about every single company world-wide faces that cyber attackers will exploit, beginning in 2019, that companies must get on top of. One blind spot is the cloud. There is a false sense of comfort and lack of attention to detection, thinking the cloud is safer because of the cloud provider’s cybersecurity or because the cloud provider has an out-of-the-box monitoring system. However, if the company fails to identify all Crown Jewels and map all relevant cyber attacker signals for the monitoring, the attackers will get in, remain undetected and steal data or commit other harm in the cloud. The other blind spot is Internet of Things (IoT). IoT devices (e.g. smart TVs, webcams, routers, sensors, etc.), with 5G on the way, will be ubiquitous in companies world-wide. While IoT devices provide many benefits, they are a weak link in the chain due to poor built-in security and lack of monitoring. Cyber attackers will focus on IoT devices to make the intrusion, then pivot to get to the Crown Jewels. Detecting early signals of cyber attackers trying to exploit IoT devices will be critical. Companies world-wide need to make cybersecurity a priority, starting in the board room and with the CEO. It all starts at the top. My intensive reviews of the world’s largest hacks reveal in each case a common theme: inadequate or missing CEO and board cybersecurity oversight. Here are five key questions from my book that the CEO must take the lead on and together with the board ask of the management team to make sure the company will not become the next victim of cyber attackers and suffer significant financial and reputational harm: Have we identified all of our Crown Jewels and are not missing any? Do we know where all of the Crown Jewels are located? Have we identified all of the ways cyber attackers could get to the Crown Jewels? Have we mapped high probability signals of cyber attackers trying to get to the Crown Jewels with each Crown Jewel? Are we sifting through all of the noise to detect signals early and reporting to the CEO and the board in a dashboard report for timely oversight? If your answer is No to any of the questions or you are unsure, you have a gap or blind spot and are at risk, and you must follow up to get to a high confidence Yes answer. In my book, Next Level Cybersecurity, I provide other key questions to ask and a practical seven-step method to take cybersecurity to the next level to stay one step ahead of the attackers. It is written in plain language for boards, executives and management, so everyone can get on the same page and together mitigate one of the most significant and disruptive risks faced today, cybersecurity.

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DOCUMENT PROOFREADING AND EDITING SERVICES FOR YOUR CYBERSECURITY POLICY

Article | June 14, 2021

Recent data breaches, ransomware, and malware trends have increased the need to protect customer privacy. Regardless of company size or industry, you need a cybersecurity policy to ensure cybersecurity best practices in your organization. A cybersecurity policy contains preventive measures that protect your network from cybercriminals. To ensure that your cybersecurity policy is easy to read, understand, and implement, you need cybersecurity policy document proofreading and editing services. Your cybersecurity policy spells out cybersecurity dos and don’ts drafted from industry and state regulations that your employees should follow. It states the instructions your employees should follow to prevent cyberattacks and how they should react when they notice a network security breach. This protects data, promotes customer privacy, and prevents cyber-attacks. In this article, we spell out why you need cybersecurity proofreading and editing services.

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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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Spotlight

eSentire

eSentire® is an industry leader, providing managed detection and response services to mid-sized organizations, keeping them safe from constantly evolving cyber-attacks that traditional security defenses simply can’t detect. eSentire combines people, process, and proprietary technology to deliver an unmatched, premium-level service that hunts, detects, remediates, and communicates sophisticated cyber threats in real-time, 24x7. Protecting more than $3.2 trillion in Assets under Management, eSentire is the award-winning choice for security decision-makers in mid-size enterprises. eSentire has received multiple accolades for exceptional service, including Hedge Fund Manager (HFM) Service and Technology awards, listed on Deloitte’s Technology Fast 50™ and Fast 500™ lists, and named a leader in the 2016 “Market Guide for Managed Detection and Response Services” by Gartner, Inc. For more information, visit www.esentire.com and follow @esentire.

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