Friday, 20 September 2019

What is Cookie Stuffing and Ad Fraud Scheme ? || techtalksgroup ||



Cookie Stuffing, also known as Cookie Dropping, is one of the most popular types of fraud schemes in which a website or a browser extension drops handfuls affiliate cookies into users' web browser without their permission or knowledge.


This type of SIVT involves inserting, deleting, or misattributing cookies to manipulate or falsify the prior activity of users. Also known as ‘cookie dropping,’ it pertains to the fraudulent manipulation of visitor cookies to disguise or conceal legitimate user cookies.

Often considered a black hat online marketing technique, cookie stuffing can potentially generate fraudulent affiliate income for the cookie stuffer by overwriting legitimate affiliate cookies. A website visitor may unknowingly receive a third-party cookie from a website unrelated to the one actually visited. Later on, if the visitor goes to a targeted website and completes a qualifying transaction or makes a purchase, the cookie stuffer illegally earns a commission from the targeted site and deprives the legitimate affiliate of its referral commission.

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Acer Nitro 5, A budget gaming latop yet realased. || techtalksgroup ||


Enjoy premium looks without the premium price with the Acer NITRO Gaming notebook (model AN515-52), which features a beautiful exterior. It features a 15.6-inch high-def. display giving you ample space for opening multiple windows and digital entertainment. It's powered by Intel i5 8300H Enjoy smooth multitasking and excellent performance with 8GB installed RAM and 1TB HDD + 256GB SSD with NVIDIA GTX 1050 (4 GB Dedicated GDDR5).

lets take a review of the specifications in detail:-

Technical Details

  • Brand                                         Acer
  • Series                                       Nitro 5
  • Colour                                     Shale Black
  • Item Height                           26 Millimeters
  • Item Width                           39 Centimeters
  • Screen Size                             15.6 Inches
  • Maximum Display Resolution  1920 x 1080 (Full HD)
  • Item Weight                                2.5 Kg
  • Product Dimensions           26.6 x 39 x 2.6 cm
  • Batteries: 1 Lithium ion batteries required. (included)
  • Item model number            AN515-52
  • Processor Brand                          Intel
  • Processor Type                   Core i5 8300H
  • RAM Size                                    8 GB
  • Memory Technology                    DDR4
  • Maximum Memory Supported   32 GB
  • Hard Drive Size                             1 TB
  • Hard Disk Technology                   Mechanical Hard Drive
  • Speaker Description                Optimized Dolby Audio Premium
  • Graphics Coprocessor                    NVIDIA GeForce GTX 1050
  • Graphics Card Ram Size                      4 GB
  • Connectivity Type                        Wi-Fi, Bluetooth-V4, Infrared
  • Wireless Type                                      802.11a/b/g/n/ac
  • Number of USB 2.0 Ports                          2
  • Number of USB 3.0 Ports                          1
  • Number of HDMI Ports                                  1
  • Number of Audio-out Ports                          1
  • Number of Ethernet Ports                          1
  • Voltage                                                         220
  • Card Reader                                           Secure Digital Card
  • Operating System                              Windows 10 Home 64-bit
  • Supported Software                                AcerTrueHarmony
  • Average Battery Life (in hours)                7 Hours
  • Lithium Battery Energy Content             48 Watt Hours
  • Number of Lithium Ion Cells                          4
  • Included Components             Laptop, Battery, AC Adapter, User Guide, Manuals


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Friday, 6 September 2019

Repeater Vs Hub Vs Bridge Vs Routers Vs Gateway Vs Brouters ... || tech talks group ||

1. Repeater – 

A repeater operates at the physical layer. Its job is to regenerate the signal over the same network before the signal becomes too weak or corrupted so as to extend the length to which the signal can be transmitted over the same network. An important point to be noted about repeaters is that they do not amplify the signal. When the signal becomes weak, they copy the signal bit by bit and regenerate it at the original strength. It is a 2 port device.

2. Hub – 

 A hub is basically a multiport repeater. A hub connects multiple wires coming from different branches, for example, the connector in star topology which connects different stations. Hubs cannot filter data, so data packets are sent to all connected devices.  In other words, collision domain of all hosts connected through Hub remains one.  Also, they do not have intelligence to find out best path for data packets which leads to inefficiencies and wastage.

Types of Hub

Active Hub :- 

These are the hubs which have their own power supply and can clean , boost and relay the signal along the network. It serves both as a repeater as well as wiring center. These are used to extend maximum distance between nodes.

Passive Hub :- 

These are the hubs which collect wiring from nodes and power supply from active hub. These hubs relay signals onto the network without cleaning and boosting them and can’t be used to extend distance between nodes.

3. Bridge –

 A bridge operates at data link layer. A bridge is a repeater, with add on functionality of filtering content by reading the MAC addresses of source and destination. It is also used for interconnecting two LANs working on the same protocol. It has a single input and single output port, thus making it a 2 port device.

Types of Bridges

Transparent Bridges :- 

These are the bridge in which the stations are completely unaware of the
bridge’s existence i.e. whether or not a bridge is added or deleted from the network , reconfiguration of
the stations is unnecessary. These bridges makes use of two processes i.e. bridge forwarding and bridge learning.

Source Routing Bridges :- 

In these bridges, routing operation is performed by source station and the frame specifies which route to follow. The hot can discover frame by sending a specical frame called discovery frame, which spreads through the entire network using all possible paths to destination.

4. Switch –

 A switch is a multi port bridge with a buffer and a design that can boost its efficiency(large number of  ports imply less traffic) and performance. Switch is data link layer device. Switch can perform error checking before forwarding data, that makes it very efficient as it does not forward packets that have errors and  forward good packets selectively to correct port only.  In other words, switch divides collision domain of hosts, but broadcast domain remains same.

5. Routers –

 A router is a device like a switch that routes data packets based on their IP addresses. Router is mainly a Network Layer device. Routers normally connect LANs and WANs together and have a dynamically updating routing table based on which they make decisions on routing the data packets. Router divide broadcast domains of hosts connected through it.

6. Gateway – 

A gateway, as the name suggests, is a passage to connect two networks together that may work upon different networking models. They basically works as the messenger agents that take data from one system, interpret it, and transfer it to another system. Gateways are also called protocol converters and can operate at any network layer. Gateways are generally more complex than switch or router.

7. Brouter –

 It is also known as bridging router is a device which combines features of both bridge and router. It can work either at data link layer or at network layer. Working as router, it is capable of routing packets across networks and working as bridge, it is capable of filtering local area network traffic.

So that's it. Hope you guys like it. If yes then please .. comment down below and do not forget to like follow and share our social media platforms.

Sunday, 1 September 2019

Top 10 Countries with highest number of Jobs.


One of the most important decision a person has to take is finding a good job and professional environment. Long time ago people used to work for one employer their entire life and usually it used to be where they were born. Nowadays technology and modern way of life gives the opportunity to have much more options to choose from. More liberal Legislations and democracy gives a lot to people who want to have the career and professional development they want in the country they want to live and have happy life. Boundaries are not obstacles any more Visa and work permits are not obstacles as well/check visafirst.com/

There are a number of countries which economies are growing and they need professionals to help fill their needs of good work force. In this research the top 2 positions are occupied by Asian countries.


  • Singapore
  • Hong Kong
  • United Arab Emirates
  • Australia
  • USA
  • France
  • China
  • Netherlands
  • UK
  • Mexico


The leader in this research Singapore has huge needs in telecommunications and IT sector. The stable economy and good business relations of the country on global level creates a lot of opportunities for qualified people.

The runner up Hong Kong is famous for its global trading and business environment as well as great tourist destination which provides a lot of opportunities for young and ambitious people who want to explore new culture and have some Asian experience with global business environment.

3rd place is for United Arab Emirates. This country has a lot of resources mainly thanks to its oil. There are a lot of huge projects financed by the government and a lot of opportunities in the oil and engineering sectors as well as construction building. The huge demands of those industries and endless resources leads to good salaries for people that are not afraid of the hot climate.

Number 4 is for Australia a vast country with endless needs for people in any sector of business and skill sets.

The surprising country here is Mexico. Famous for its culture, good climate and famous tourist destination. The country has 14th largest economy and is in top 10 for production of electronics and computers globally. The oil industry is very well developed taking 6th place in the world. This makes this economy appealing for qualified workers.

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Saturday, 24 August 2019

eMMC vs SSD ?? What's the Difference. Check it Out.!! || tech talks group ||


If you're shopping for a new laptop, there are a lot of factors to think about. One of the most important aspects to consider is the kind of storage a laptop offers. Your average laptop (whether it's a 2-in-1, big and expensive, or budget-friendly and compact) will most likely sport either eMMC storage or SSD storage, but how are they different? Keep reading to learn more about eMMC hard drives vs. SSD hard drives.

What Is eMMC Storage and How Does It Work?

eMMC (embedded MultiMediaCard) storage is a form of internal storage made up of a controller and NAND flash memory, both of which are located in one integrated circuit. eMMC storage chips are usually embedded in a given device's motherboard. The controllers housed within eMMC chips have the ability to put data into storage, which, according to SearchStorage, allows the device's CPU to conserve its already limited speed and power for other computing tasks. In addition, eMMC's use of NAND flash memory also requires little to no power from the device to hold onto data.


Unsurprisingly, the fact eMMC chips are able to perform with little to no power drawn from their devices goes hand-in-hand with the fact that eMMC chips are generally found in PCs and mobile devices that have limited power, performance, and speed; especially when compared with more expensive, fully-featured laptops. In fact, you'll normally find eMMC chips in compact/budget laptops, Chromebooks, tablet PCs, 2-in-1s, and even smartphones and tablets.

WHEN SHOULD YOU BUY EMMC STORAGE?

If you're looking for something portable with a lower price point, a PC with eMMC storage may be worth considering. And, as Windows Central points out, PCs with eMMC storage may also be best for those who already own an external hard drive, have a cloud storage subscription, or can at least afford a cloud storage subscription. This is because PCs with eMMC storage tend to have smaller storage capacities available. So, if you need to store a lot of files and other data, you'll need to have an external storage option if you still plan to use an eMMC PC.


Another thing to consider is how you plan to use your laptop. Laptops featuring eMMC storage are generally best for those who plan to use them for web browsing and streaming media and not much else. They're not really built for labor-intensive tasks.

What Is SSD Storage and How Does It Work?

SSD (solid-state drive) storage is a type of internal storage that consists of a number of flash memory chips, a circuit board, and usually either a SATA or PCIe interface that moves data and provides an SSD with power.

Unlike more traditional hard drives, SSDs don't require moving parts like drive motors to read data. The lack of moving parts in SSDs means they don't need as much power to read data and can do so much faster than hard drives. And, like eMMC storage, SSDs use NAND flash memory, which enables SSDs to use less power when storing data.


SSDs are usually found in bigger, more fully-featured laptops or desktop computers. These computers also tend to be more expensive and have larger storage capacities than eMMC computers and mobile devices. The larger storage capacities are due to the fact that SSDs have larger sizes available.

WHEN SHOULD YOU BUY SSD STORAGE?

Customers who need a fully-featured laptop that can handle a wide variety of computing tasks (web browsing, watching movies, gaming, and productivity tasks) would probably be best served by a laptop that has SSD storage.

Due to the fact the SSDs often offer large storage capacities, SSDs are best for those who plan on storing large files (or just more data in general) on their PCs.

Also, price is an important factor when considering SSDs. While they're often worth the money (SSDs tend to be faster, perform better, and can store more than eMMC devices), they also tend to be more expensive. They're generally not considered "budget laptops," but if your budget can support the cost of an SSD laptop, it may be worth the purchase.

How They Compare: eMMC flash vs. SSD

When comparing eMMCs to SSDs, there are three primary things to look at.

PERFORMANCE (SPEED/DATA TRANSFER SPEED)

eMMC devices and PCs aren't super slow, but they're generally considered to be much slower than PCs outfitted with SSD storage.

Currently, eMMC storage can reach up to a transfer speed of 400 MB/s, whereas the best SSDs (including high-performance PCIe SSDs), which vary widely in their read/write speeds, can have read speeds ranging from about 500 MB/s to over 3,000 MB/s. The best SSDs can also have write speeds that vary from about 300 MB/s to over 3,000 MB/s.

CAPACITY (STORAGE)

eMMCs also lose to SSDs in the battle for storage capacity. eMMCs have a much more limited storage capacity, but it kind of makes sense considering what they're used for. eMMCs are generally intended for lightweight, mobile devices and ultra-portable PCs.

eMMC devices mostly offer the following storage sizes: 32GB, 64GB, 128GB, and 256GB. SSDs, since they're intended to be used with full-featured laptops and desktop computers, can offer up to 1TB of storage or more.

PRICE

eMMCs finally score a victory against SSDs when it comes to price. While eMMCs have their limitations, they're also cheaper. There are many eMMC budget laptops that are less than $500, and a good number of those are even less than $300.

You can get new SSD laptops from online retailers (with a minimum of 512GB in SSD storage) starting at around $500 - $600. There are certainly SSD laptops that cost much more than that, even reaching into the thousands, but the pricing often depends on the type of SSD involved, storage size, and other computing features included in the laptop.

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Any Idea About When Will The Life of Windows 10 Will Get End .?



Microsoft will not be implementing the same end of life process for Windows 10 that it has for previous versions of Windows. There is no forthcoming Windows version to install. Instead, Windows 10 users will need to continue allowing Windows 10 to update itself indefinitely. Older versions of Windows 10 will reach end of service, but this will be largely irrelevant for users who keep Windows 10 updated.

What Does End of Life Mean?

Previous versions of Windows were subject to Microsoft’s software lifecycle. Microsoft states, “Every Windows product has a lifecycle. The lifecycle begins when a product is released and ends when it's no longer supported. Knowing key dates in this lifecycle helps you make informed decisions about when to update, upgrade or make other changes to your software.”

Why Is Windows 10 Different?

Windows 10 was developed to be an as-a-service application, meaning the user doesn’t have to worry about installing new versions or updates. The process is similar to, say, the browser that you use, which gets updated periodically without any effort on your part. These updates include regular improvements meant to make Windows easier to use.

How Can I Make Sure I Have the Latest Update?

If you’ve been using Windows 10 for some time, it’s likely you’ve noticed major or minor updates every few weeks. But if you’re still not sure, you can force Windows 10 to update by using the following procedure:
  • Go to Windows Settings.
  • Click Update & Security. 
  • You will be taken to a Windows Update screen.
  • At the top of the screen, check your update status. If you’re up-to-date, you don’t need to do anything else.
  • If you’re not completely updated, click Check for updates and follow the instructions from there.
  • Once you’re all updated you can modify other update settings from the Windows Update screen. Just click the links under Update settings and make adjustments according to your preferences.

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Wednesday, 21 August 2019

Security Bugs and Vulnerability - The Vulnerability Landscape


Cyber security is an arms race between offensive and defensive capabilities, and unfortunately, we are losing this battle. As users, we want better technology doing cooler things enabling us to do more. But the more we have, the more we rely on it,  and the more complex these systems become.
Complexity is the enemy of security. In fact, complexity is a nemesis of security,
which is one of the main reasons why we’re losing this arms race.
I’m going to get you up to speed on security bugs and vulnerabilities and how they
affect your security. A security bug and a vulnerability are actually the same thing. So they’re synonyms for each other. So if I say security bug or vulnerability, it’s the same thing. And it’s an
error. It’s an error written into software that creates a potential for a threat agent,
such as a hacker, to exploit it. So an example might be the recent Heartbleed bug which you may have heard about because it was on mainstream news. This is a bug in something called Open
SSL which enables the decryption of internet traffic sent to vulnerable sites. So for example, maybe you have a online bank. If it was susceptible to the Heartbleed bug, and when you were sending your username and password, somebody may, if the bug was in that bank, able to decrypt and get access to your username and password. Security bugs will always exist as long as humans write software. That might not be forever, but humans are fallible, so as long as humans write software, there’s going to
be security bugs. And it’s no surprise really if you consider something like the Windows operating
system. It’s made up of millions and millions of lines of code. Humans are fallable, we
will make mistakes, there will be security bugs. On the left here, you can see a diagram that represents your computer, and on the right, we have a diagram that represents the internet. On each side we have things that you care about.  Security bugs can exist in your operating system, firmware, applications, things like Outlook, your media player, Adobe Acrobat. In a particular risk, they can exist in your browser and the extensions and add-ons within the browser.  So for example, there can be a security bug in your Internet Explorer. You visit a website which has special code on it. You won’t see that this code is one there, and this will install malware on your machine and take it over through that vulnerability.
And maybe the consequences are that they choose to encrypt all your files and hold them to ransom until you pay the money to decrypt it, and that’s known as Ransomware. Because you have things you care about online, we have to consider the security bugs that exist on internet sites and on the internet infrastructure. So maybe you use Dropbox and there is a bug that is discovered by Dr. Evil on Dropbox, which gives him access to your files. And because Dropbox stores encryption keys, so encryption isn’t going to save you, he will then have access to your files. There are two main types of bugs. Really, it’s best to draw a distinction between, and those are the Known and Unknown bugs. So if we start with the Known bugs, known bugs of vulnerabilities have patches, and if you patch your system, you are safe against that bug. And we’ll cover the best and easiest way to do patching of all the things that need patching as we go through. And then you have the Unknown bug, also can be referred to as zero-days. These are much harder to protect against as there is no patch. So we’ll cover later techniques to protect against these, and these are referred to in the security industry
as a compensating control. I’m going to bring up a spreadsheet to give you a little bit more of an insight intothe world of the cyber criminal. Your budding, entrepreneur hacker doesn’t even need to be particularly skilled these days. He can go purchase an already made exploit kit. If you look at this spreadsheet, here along the top, these are the various popular exploit kits that are available at the moment and to purchase. And down here are the
various vulnerabilities, what they affect down here. And, as a budding, hacking entrepreneur, we can look through here and see which particular vulnerability we might want to use. Okay, we might want to exploit Internet Explorer, so there you go, we can use this one. And here we can see that this one allows the remote attacker to execute arbitrary code by a crafted website that triggers access to a detailed object. That really means that if you click on a link or go anywhere with an Internet Explorer browser, is susceptible to this vulnerability, they can take over your machine. And if we’re not feeling like potentially buying an exploit kit, you can look online for the exploit. And we can see here this is the code to run the exploit. So I hope that gives you a better idea about what security bugs are and vulnerabilities. And later on, we’re going to be going through the ways to mitigate against the Known vulnerabilities and the Unknown vulnerabilities.

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