Skip to main content

Here's what a VPN can't protect you from (but you need to use it)

The abbreviation " VPN " has slowly become established among average Internet users, which is certainly good, but the problem is that people have started to see VPN as the ultimate solution to all problems.

How does the new Google ReCaptcha work?

How does the new Google ReCaptcha work?

You've probably seen that some sites have a new Captcha anti-robot system where you only need to unhook the house. But how does Captcha know that the house was unhooked by a man and not a robot?

In fact, it's not a classic Check field, but a giant within an iframe. In addition, there is an invisible field in which a unique value is entered, and that field cannot be loaded by a robot because it does not support JavaScript.

New ReCaptcha

Still, some robots support JavaScript, does that mean the new Captcha is still vulnerable? Of course not. Clicking the Check field and storing the unique Code in an invisible field is not the only protection mechanism. Captcha is so sophisticated that it uses many more parameters, based on which it determines whether the field was clicked by a human or a robot.

This algorithm tracks the movement of the cursor on the site, how you clicked on the field, how long you stayed on the site, what you watched, tracks your internet surfing history, activities, cookies… And Google Analytics and AdSense algorithms even better block bots that otherwise increase views on pages and the number of ad clicks.

However, these are just some of the methods that the new Captcha uses. Google did not provide all the information for security reasons – so as not to create robots that falsify this information.

Testing Captcha

If Captcha is hesitant, i.e., can't determine if the field was clicked by a human or a robot, offer a classic test where you need to enter numbers from an image (or select thumbnails if you're on a mobile device). But there is also improved protection, so this action has limited time to make it harder for robots to solve the task.

ReCaptcha on mobile

The new Captcha is widely available to everyone and anyone can implement it on their site, and is it better than the previous one? Of course! Instead of making it increasingly difficult to identify images, Google decided to make it easier for people and make robots' work harder.

Comments

Popular this month

Facebook is introducing another new service

Facebook is preparing another novelty for us. This is the  " Listen With Friends " application that will soon appear on chats , and with it, you will be able to listen to music with the person you are corresponding with.

Interesting gadgets for less than $5 [2. part]

Due to the great interest in the article in which I presented several interesting gadgets that cost less than $ 5 , I decided to compile another list. Note :  all the products I listed below can be purchased on various sites, but I posted links to Aliexpress because I have bought a lot there and have the most experience.

Android TV Box - a guide to buying up to 30 euros

What is Android TV Box? This is a great solution if you want to add a " Smart " function to an existing TV . With this device, you can watch live TV online for free (later on), play games, upload all kinds of files, watch movies (from USB, over the internet, phone…), listen to songs, surf the internet, use social networks… or everything you can on your Android phone. It is usually a cube-shaped device (but it doesn't have to be) and has various inputs and outputs. It connects to the TV via an HDMI cable , but some also have an AV output over 3.5mm that goes to the familiar 3 cinches, so you can also connect to an older TV (even to SCART if you have an adapter). It is also standard for these devices to have WiFi , LAN port (RJ45), IR Remote , at least 2 USB ports , support for high definition video formats (these cheap ones often have 4K support), and usually come with a remote .

Android ROOT - programs and applications

I have already written several posts on how to root an Android device, so I decided to make one in which I will unite everything.

Serbia will soon have the strongest supercomputer in the Balkans!

By upgrading the "Paradox" supercomputer, Serbia will receive in the next few months the most powerful supercomputer in the Balkans, worth around one million euros! Today, the " Paradox " supercomputer has 1,100 processors and operates at seven teraflops, which is 7,000 billion operations per second. With the upgrade, the computer will have 5,000 processors and will work at 40 teraflops, or 40,000 billion operations per second. It can currently store 60 terabytes (60,000 gigabytes) of data.