Category Archives: social media

Top 20 Biggest Websites In The World

Google is not the biggest website in the world.

It’s No. 2.

Do you know who’s No. 1?

Hint: It’s another American company.

By the way, guess how many of the top 20 websites in the world are Chinese.

1? 5? 10?

Thanks to ComScore, which provided us data on the top most popular Web domains in the world.


biggest websites in the world : ehack

biggest websites in the world : ehack

20. – 163 Million Unique Visitors – 163 Million Unique Visitors : ehack – 163 Million Unique Visitors : ehack

What it is: The ultimate online shopping destination for electronics, apparel, sporting goods, and even food.

How it got so big: When Amazon first launched, it was nothing more than a few people packing and shipping boxes of books. But it has since grown to shipping everything from trumpets to the Kindle Fire.


19. – 169 Million Unique Visitors - 169 Million Unique Visitors : ehack – 169 Million Unique Visitors : ehack

What it is: Chinese mobile portal for media and user-generated content.

How it got so big: In the early 2000s, Sina was known as the “Yahoo of China.” Sina launched microblogging service Weibo in 2009, and has grown to more than 400 million users.

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Facebook Announces 2013 Hacker Cup Competition

Hackers, start your keyboards: Facebook has officially opened registration for its third annual Hacker Cup, set to begin at the end of this month.

facebook hacker cup : ehack

facebook hacker cup : ehack

Facebook has announced that it has opened registration for the Hacker Cup, its annual competition for programmers with a $10,000 top prize, up from $5,000 last year, for the best of them all. Facebook holds the Hacker Cup in rounds, starting first online and then culminating in a final onsite round at Facebook’s HQ in Menlo Park, CA for the top 25 programmers. This years preliminary rounds will be held between January 25 and February 16. Facebook will fly the top 25 for the onsite final round that takes place March 22-23.

The Hacker Cup is important for a couple of reasons. For one is shows that, although Facebook is pushing past one billion members of its social network and is now one of the world’s biggest public tech companies, it is committed to trying to staying close to its Hacker Way roots.

This is important for it to stay innovative, but it also helps keep Facebook in touch with the world community of top, smart programmers — an obvious route to tapping for top engineering talent.

Facebook says that those who registered for a previous year are automatically registered for the competition year, although they still need to check their information is up-to-date.

There is no limit to the number of people registering for the competition, as long as you sign up by the end of the first round, on the 27th of January.

But there are a few limits on who can participate. Facebook notes in its rules and regulations that you need to be registered on Facebook yourself, you need to be 18 or older, and you cannot be resident in Quebec (!) or any other place where these kinds of competitions are prohibited by law. You also need to provide your real name, postal address, phone number, email address, and date of birth, which may weed out a few Anonymous types, as brilliant as some of them may be.

The competition will follow the same form as in past years. Rather than free-form hackathon-style hacking, contestants are given problem sets that they need to solve. Answers come by way of source code and an output file to show how it works. They will be judged on how well they can come up with the solution in a set period of time, via a timer in the input set. They have six minutes to submit the source code and output file — and they can submit multiple answers in that time.

Last year, the Hacker Cup attracted 8,000 hopefuls from 150 countries, but the final 25 came from a relatively narrow list of countries – Russia, Germany, Poland, Ukraine, China, South Korea, Japan, Taiwan, and the U.S., with the winner, Roman Andreev, hailing from Russia. You can read more about him and last year’s competition here. Just as it is telling that Facebook runs a Hacker Cup, it will be telling to see how many enter this year and how the country spread for finalists compares.



Original post at –TechCrunch

Thanks for reading. hope it might helped you.



Facts of facebook [infographic]

infographical : ehack

infographical : ehack

facts of facebook : ehack

facts of facebook : ehack

500000000 Active Facebook user.

Mostly Facebook users are between 18 to 34 years old.

Facebook was the most shared term in 2010.

750 Million photos were uploaded to Facebook over new year’s weekend.

Original post at –mashable

Thanks for reading. hope it might helped you.

Hacking Facebook Passwords like changing your own Password

Hacker found a way to hack and change your password like, just he used to change his own password. Confused ? Recently Facebook fix a very critical vulnerability on the tip of ‘Sow Ching Shiong‘, an independent vulnerability researcher. Flaw allows anyone to reset the password of any Facebook user without knowing his last password.

Hacking Facebook Passwords like changing your own Password : ehack

Hacking Facebook Passwords like changing your own Password : ehack

At Facebook, there is an option for compromised accounts at “” , where Facebook ask one to change his password for further protection. This compromised account recovery page, will redirect you to another page at “” .


Hacking Facebook Passwords like changing your own Password : ehack

Hacking Facebook Passwords like changing your own Password : ehack

Researcher notice that the URL of the page having a parameter called “f” which represents your user ID and replacing the user ID with victim’s user ID allow him to get into next page where attacker can reset the password of victim without knowing his last password.

The Vulnerability was very simple to execute, but now patched by Facebook Security Team.



Original post at –thehackernews

Thanks for reading. hope it might helped you.


Password reset Vulnerability in Facebook Employees Secure Files Transfer service : ehack : ehack

Many be many of you are not aware about this, but Facebook having a Secure Files Transfer service for their Employees at and Hacker reported a very critical password reset vulnerability.

Nir Goldshlager, a researcher told ‘The Hacker News‘ that how he defeat Facebook‘s Secure Files Transfer service and help Facebook by reporting them about this issue in a responsible non-disclosure way till patch.

After analyzing the site, he found that the script Facebook is using is actually “Accellion Secure File Sharing Service” script and so next he download the demo version of service from Accellion website and explore the source codes and file locations.

He found that, there is a user registration page also available in source, that was also on Unfortunately Facebook had removed the Sign up option (link) from homepage, but forget to remove the registration page from its actual location i.e (/courier/web/1000@/wmReg.html).

So this way, Goldshlager was able to make an account on the site for further pentest. He found that the  demo source code of the service is encrypted by  ionCube PHP Encoder, and decryption of many parts of the source code was not possible by him.

Source code of a web application is like a treasure for a penetration tester, once you have source code, you can look for many critical web application vulnerabilities easily. Anyway, he drop that idea because source code is encrypted.

There is a Password Recovery page (wmPassupdate.html) also available on site, which was actually allowing anyone to reset the passwords of any account. Goldshlager notice that when one request to reset the password of his account, the page was validating the user by a cookie called “referer” that contained the email ID of same logged in user but encrypted in Base64.

Facebook Employees : ehack

Finally, Goldshlager hack the Facebook  Employees Secure Files Transfer service by tampering the values of cookies equals to the victim email ID and Password parameters. This way he was able to reset the password of Facebook Employees using this critical flaw. Flaw was reported by him and now patched by Facebook.

Video Demonstration by Nir Goldshlager–

Original post at –thehackernews

Thanks for reading. hope it might helped you.

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