Monday, February 27, 2023

Phishing, Vishing and Smishing: What You Need To Know To Better Protect Yourself

Vishing phone call

In today's digital age, phishing, vishing, and smishing have become common types of cyberattacks that threaten people's online security. These attacks are designed to trick individuals into revealing sensitive information, such as login credentials, credit card numbers, or personal data. In this article, we will explore what phishing, vishing, and smishing are, and what steps people can take to protect themselves from these attacks.

Phishing: Phishing is a type of cyberattack that involves sending emails, text messages, or social media messages to individuals, posing as a legitimate organization or business. These messages usually contain a link or attachment that, when clicked, leads the recipient to a fake website that looks identical to the legitimate one. The goal of the attacker is to get the victim to enter their login credentials or other sensitive information, which the attacker can then use to steal money or sensitive information.

Vishing: Vishing, or voice phishing, is a type of phishing attack that involves phone calls. The attacker usually poses as a representative of a legitimate organization, such as a bank or government agency, and tries to get the victim to reveal their sensitive information. The attacker may use various techniques, such as urgency, threats, or promises of rewards, to get the victim to comply.

Smishing: Smishing, or SMS phishing, is a type of phishing attack that uses text messages to trick victims into revealing sensitive information. Like phishing attacks, smishing messages usually contain a link that, when clicked, leads the victim to a fake website. The attacker may also use social engineering techniques, such as urgency or fear, to get the victim to click the link.

Protecting yourself from phishing, vishing, and smishing: Fortunately, there are several steps you can take to protect yourself from these types of attacks:

  1. Be suspicious of unsolicited messages: If you receive an email, phone call, or text message from an unknown sender, be suspicious. Check the sender's email address, phone number, or website URL to make sure they are legitimate.
  2. Don't click on links or download attachments: Avoid clicking on links or downloading attachments from unknown senders, especially if the message seems suspicious or too good to be true.
  3. Verify requests for information: If someone asks you to provide sensitive information, such as your login credentials or credit card number, verify their identity first. Call the organization or business directly to confirm the request.
  4. Keep your software up-to-date: Keep your operating system, web browser, and other software up-to-date to ensure that you have the latest security patches and bug fixes.
  5. Use security software: Install and use security software, such as antivirus and anti-malware programs, to protect your computer and devices from cyberattacks.
  6. Educate yourself: Learn more about phishing, vishing, and smishing attacks so you can recognize them when they occur. Share this knowledge with your friends and family to help them stay safe online.

In conclusion, phishing, vishing, and smishing attacks are serious threats to our online security. By following the tips mentioned above, we can better protect ourselves from these attacks and keep our personal and sensitive information safe. Remember to stay vigilant and always be suspicious of unsolicited messages.

Sunday, February 26, 2023

Here’s why it’s not such a good idea to share details regarding your device’s anti-virus software, publicly online.

Security

In today's digitally connected world, personal computing devices have become an essential part of our daily lives. With the rise of cyber threats and online attacks, antivirus software has become a necessary tool to protect our devices and data. However, it is not advisable to share details about your antivirus software publicly, online, as it can put your device and personal information at risk.

Here are some reasons why sharing details about your antivirus software publicly, online, is not a good idea:

  1. Security Risks: By sharing details about your antivirus software online, you are essentially providing valuable information to potential cybercriminals. They can use this information to exploit vulnerabilities in the software, bypass security measures, and gain unauthorized access to your device and personal information.
  2. Increased Vulnerability: Sharing details about your antivirus software online can also make your device more vulnerable to attacks. Cybercriminals can use the information you provide to tailor their attacks specifically to your device and antivirus software, making it more challenging for the software to detect and mitigate the attack.
  3. Privacy Concerns: Sharing details about your antivirus software publicly, online, can also compromise your privacy. Cybercriminals can use this information to track your online activities, monitor your browsing habits, and collect personal data, such as login credentials, financial information, and other sensitive information.
  4. Social Engineering Attacks: Cybercriminals can use the information you provide about your antivirus software to trick you into downloading malware or other malicious software. They can use social engineering techniques to create fake antivirus software updates or alerts, convincing you to download and install the malware on your device.
  5. Impact on Antivirus Software Performance: Sharing details about your antivirus software publicly, online, can also impact the performance of the software. Cybercriminals can use the information you provide to create malware specifically designed to evade the software's detection and protection mechanisms, rendering it ineffective.

In conclusion, sharing details about your antivirus software publicly, online, is not a good idea as it can put your device and personal information at risk. It is essential to keep your antivirus software up to date, use strong passwords, and avoid sharing any personal information online. By taking these steps, you can help protect your device and data from cyber threats and online attacks.

Wednesday, February 22, 2023

The History of USB (Universal Serial Bus) Technology - From USB 1.0 to USB4

USB logo

Universal Serial Bus (USB) technology has become ubiquitous in modern computing and consumer electronics. USB allows for the transfer of data and power between devices, making it an essential component in today's connected world. In this article, we will explore the evolution of USB technology from its early days as USB 1.0 to the latest version, USB4.

USB 1.0

The USB 1.0 specification was released in 1996, and it was the first standardized USB interface. It offered a data transfer rate of up to 12 Mbps, which was much faster than the existing parallel and serial ports. USB 1.0 also introduced the concept of plug-and-play, which allows devices to be connected and used without requiring any additional configuration. However, USB 1.0 had its limitations, such as its inability to supply power to connected devices.

USB 1.1

In 1998, the USB 1.1 specification was released, which improved upon the original USB 1.0. USB 1.1 added support for lower-speed devices and allowed for power to be supplied to connected devices. It also introduced the concept of bus-powered devices, which could draw power directly from the USB port, eliminating the need for an external power source. USB 1.1 had a maximum data transfer rate of 12 Mbps, which remained the same as USB 1.0.

USB 2.0

The USB 2.0 specification was released in 2000, and it was a significant improvement over its predecessors. USB 2.0 offered a maximum data transfer rate of 480 Mbps, which was 40 times faster than USB 1.1. It also introduced support for new devices such as webcams and external hard drives. USB 2.0 also improved the power delivery capabilities, allowing devices to draw up to 500mA of power from the USB port.

USB 3.0

SuperSpeed USB logo

USB 3.0 was introduced in 2008, and it offered even faster data transfer rates than its predecessors. USB 3.0 had a maximum data transfer rate of 5 Gbps, which was ten times faster than USB 2.0. It also introduced a new transfer mode called SuperSpeed, which allowed for faster data transfer rates while using less power. USB 3.0 also improved power delivery capabilities, allowing for devices to draw up to 900mA of power from the USB port.

USB 3.1

The USB 3.1 specification was released in 2013 and improved upon the USB 3.0 specification. USB 3.1 offered faster data transfer rates than USB 3.0, with a maximum transfer rate of 10 Gbps. It also introduced a new reversible USB Type-C connector, which is now widely used in modern devices. USB 3.1 also improved power delivery capabilities, allowing for devices to draw up to 100W of power from the USB port.

USB4

USB4 was introduced in 2019 and is the latest version of USB technology. USB4 builds upon the USB 3.2 and Thunderbolt 3 specifications, offering even faster data transfer rates and more advanced features. USB4 has a maximum data transfer rate of 40 Gbps, which is four times faster than USB 3.2. It also introduces support for dual-lane operation, which allows for two lanes of 20 Gbps each to be used simultaneously. USB4 also improves power delivery capabilities, allowing devices to draw up to 100W of power from the USB port.

Conclusion

In conclusion, USB technology has come a long way since its introduction in the mid-1990s. Each new version has brought significant improvements in terms of data transfer speeds, power delivery, and the ability to connect multiple devices simultaneously. As technology continues to advance, it will be interesting to see what new advancements USB 5 will bring.

Friday, January 20, 2023

Wi-Fi 7 vs. Previous Generations of Wi-Fi –How Does it Compare?

Wi-Fi Generations

Wi-Fi 7, also known as 802.11be, is the next generation of Wi-Fi technology that is currently being developed by the IEEE. This new technology promises to bring a number of improvements over previous generations of Wi-Fi, including faster speeds, increased capacity, better coverage, lower latency, and enhanced security.

One of the most notable improvements of Wi-Fi 7 over previous generations is its expected speed. Wi-Fi 7 is expected to offer faster speeds than its predecessor, Wi-Fi 6E (802.11ax), potentially reaching speeds of up to 20 Gbps. This will allow for faster downloading and streaming of large files, as well as more seamless video conferencing and online gaming.

Another advantage of Wi-Fi 7 is its increased capacity. Wi-Fi 7 is expected to support more simultaneous connections than Wi-Fi 6E, which will help to reduce congestion in crowded areas. This will be particularly beneficial in public spaces such as airports and stadiums, where many people are trying to connect to the same network at the same time.

Wi-Fi 7 also promises to have better coverage than previous generations. The new technology is expected to have better coverage than Wi-Fi 6E, which will help to reduce the number of "dead zones" in homes and buildings. This will allow for more consistent and reliable connectivity throughout a given area.

In addition to its improved speed, capacity, and coverage, Wi-Fi 7 is expected to have lower latency than Wi-Fi 6E. Latency is the delay between when a signal is sent and when it is received, and lower latency will help to reduce delays in online gaming and other real-time applications. This will provide a more seamless and responsive experience for users.

Finally, Wi-Fi 7 will introduce new security features to protect against emerging threats and will be more resilient to security attacks. Wi-Fi 7 will use advanced encryption and authentication methods, which will help to protect users’ personal information and devices from hacking and other cyber threats.

It is worth noting that Wi-Fi 7 is still under development and some of the features and improvements mentioned above may not be final or may change. However, Wi-Fi 7 is expected to be a significant improvement over previous generations of Wi-Fi and will bring many benefits to users in terms of speed, capacity, coverage, latency, and security.

Friday, October 21, 2011

How To Add Custom Album Art To Your MP3 Music Using Mp3Tag & GIMP


Introduction:

In this short, 4-step tutorial, you will learn how to make custom album art for those mp3’s of yours that don’t come with album art already pre-embedded within the MP3 file itself. If you always use known reputable music e-tailer’s, such as Amazon.com, for your music purchases, this should never be a major problem. However, for those of you that don’t purchase from these e-tailer’s, and find your music without full tags, or simply want to create different album art for tracks that already have art, this tutorial is for you. The entire process should take less than 25 minutes.

Tools needed:

  1. GIMP Image Editor (download from: https://www.gimp.org)
  2. MP3Tag (download from: https://www.MP3Tag.de/en/)
  3. Windows Media Player or Apple iTunes

Optional:

  1. Freemake Audio Converter (download from: https://www.freemake.com/free_audio_converter/)
  2. Windows Virtual PC & Windows XP Mode

Step 1: Finding A Track

For this tutorial, we’re going to use the famous Windows XP welcome music file, found at: C:\Windows\System32\oobe\images\title.wma (assuming C:\ is your Windows OS partition) on the Windows XP operating system. If you already have a MP3 track you’d like to use, please, skip to STEP 2. If you don’t have Windows XP and are running Windows 7, consider installing Windows Virtual PC & Windows XP Mode and locate the title.wma file in Windows XP Mode at the location detailed above, then continue following along to the next paragraph.

For this example, we want to use the MP3 file format so we’ll use an audio converter to convert the WMA format, the music is currently encoded in, to a more tag-friendly MP3 file format (Should this be in a separate tutorial? Maybe, but we’ll discuss it here, for now, to complete our current example).To complete this task, we will use Freemake Audio Converter found at https://www.freemake.com/free_audio_converter/. With just a few clicks you can convert the WMA file into MP3 file format using the application as shown in the image below. Next, find the converted file and proceed to STEP 2.


Step 2: Preparing Your Image

We will next find the image on the hard drive we would like to use as the album art for the MP3 file, and open the file in the GIMP image editor application*. We will have to adjust the canvas size of the image sides to be equal to its smallest side (E.g. If you have an image with a width of 1920 (pixels) and a height of 1080 (pixels), then you will have to adjust the canvas to a width of 1080 (pixels), and leave the height as-is. This is achieved by disconnecting the link on the right side of the proportion fields, and adjusting ONLY the width value), hence, creating a perfect square. The canvas size window is opened by selecting ‘Canvas Size…’ from the ‘Image’ menu. The image chosen for this example was 1333×1000 pixels large. So we will need to resize the image to 1000×1000 . We will next need to scale the image to the proper size.

NOTE: The default size and format of MP3 album cover art is 400×400 JPG. If your image is already in this format please, skip to Step 3.

We achieve this by selecting ‘Scale Image’ from the ‘Image’ menu and leaving the link connected, we scale the image down to 400×400 (pixels).

Finally, we save the image as a high-quality JPG file under the name “Windows XP Album Cover Art”, and are now free to proceed to STEP 3.


Step 3: Using MP3Tag

We open the MP3Tag application, and using the file menu, add the directory where our MP3 audio file is stored. We then verify that the audio file was successfully imported by checking for its name in the right pane of the window. With the file highlighted in the right pane of the window, we will then need to click the extended tags button, as shown in the image below. Under the right-hand ‘Cover’ menu we will need to click the ‘Add Cover…’ button, and select the 400×400 JPG image we created earlier in STEP 2. MP3Tag notifies us that the image was saved (embedded) successfully. From here we can either add text tags or save our work, and close the application. We’ll add text tags later, so for now we’ll just save our work, and close the application. It is now time to proceed to step 4.


Step 4: Verification

Next, we will open Windows Media Player to check our work. To do this we place the MP3 File in the ‘My Music’ directory (‘Music’ directory in Windows 7), if not already there, and wait and watch as Windows Media Player finds the new track.

The track's shiny new cover art is then displayed in full bloom!

Going back to MP3Tag to edit the album name and other text metadata should be a piece of cake, and specifically what the app was designed for. So, to give you a fully finished example, I made these final modifications to the MP3 file and posted an image created of Windows 7 Media Player and iTunes below. Also Included (for free download) below is the finalized album art for the MP3 file (title.MP3) we used in this tutorial.




Conclusion:

I hope you had as much fun following along through this tutorial, as I did in writing it. From here, you should be able to successfully create album art for all those special tracks missing all their metadata. I also advise you to take the time to explore all of the applications used in this tutorial to see all the features and functionality they have to offer. If you liked this tutorial, please consider joining my blog or donating in the right-hand column of the page.

Downloads:


Windows XP Album Cover Art (PNG)

Thursday, October 20, 2011

How To Protect Directories And Drives From Children And Other Restricted Users Of A Family PC


This small tutorial explains how to restrict access to select files or even a complete hard drive by modifying some simple security settings already present within Windows 7. This method can also be used on computers on display such as at retail store locations, for customers getting a little too comfortable with the machines. From start to finish the process should take less than 15 minutes. So let's get started!

Setting up the “Restricted Access” group:

  • Create the new user(s) you want to allow restricted access to the computer. For this example, we’ll use a new user named “Visitor”.
  • Set the user(s) up as standard user(s).
  • Open Computer Management (Control Panel --> System and Security --> Administrative Tools --> Computer Management ).
  • Under “Local Users and Groups” select “Groups”.
  • Right-click anywhere within the blank space of the middle window (or select Action from the top toolbar) and then select “New Group…”
  • Give the group a name; ideally we’ll use “Restricted Access” with a description of “Restricted Access”.
  • Click “Create” to create the group.
  • Under “Users” right-click “Visitor” (the newly created user(s) in your case) and select Properties.
  • In the “Member Of ” tab click “Add…”. In the Object Name box (Where it says “Enter the object names to select “) type “Restricted Access” and click 'OK'.
  • The user should now be a unique “Restricted Access” group member.
  • Click ok to close the window
  • Do this for each user you want to restrict access to.

Setting File Permissions for the “Restricted Access” Group:

  • Locate the drive or folder to which you want to restrict access to, right-click it, and select Properties from the context (drop-down) menu.
  • Select the Security tab
  • If you do not see the “Restricted Access” group you created earlier, click “Edit…”, then Click “Add..”; type “Restricted Access” (without the quotes) into the object name box, and then click ok.
  • Back under the security tab select the “Restricted Access” group, and configure desired access permissions for this drive or folder, then click ok.
  • Allow Windows to configure the new permissions you just set up, restart the computer, and Presto! You now have Secured your PC from restricted users!

Wednesday, October 19, 2011

How to Send Local Messages to Computers on a LAN in Windows 7 and Vista


This short, two-step tutorial shows you how easy it is to send messages to other computers on your LAN. This method can also be used to send messages to multiple computers on the LAN simultaneously with just a little bit of modification.

Step 1 - Picking A Destination:

To send a popup message to a computer on your local area network, first identify the computer's name you want to send the message to by logging into your router and checking the device list or wherever the computers on your network are listed within your router's configuration pages. Pick one or more computer(s) from the list to send the message to.

Step 2 - Sending The Message:

Both Windows Vista and Windows 7 come prepackaged with a command for sending messages to other local area network users. It is called ‘msg’. To use it, use the syntax below.

Syntax:
C:\Windows\System32> msg /SERVER:[type computer name here] * /TIME:[type amount of time (in seconds) to display message before it’s automatically closed] “[type the message you want to send here]”

Example 1:
C:\Windows\System32> msg /SERVER:Jeffs-PC * /TIME:300 “Hi Jeff! The server will be shutting down at 11:45 PM tonight for security and maintenance purposes. Please be sure to finish and save all of your work by then. Thanks –James”

That’s really all there is to it. Be sure to use the help command ( /?) included with the 'msg' command to see more options and features you may use, and practice with sending messages to your own PC until you feel more confident and comfortable with using the command to send important, real messages to others.