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Sophos Labs: Two weeks ago, an automatic session-hijacking plugin was released for Firefox. It was named Firesheep, and it’s been downloaded over 600,000 times so far. The decision to release Firesheep publicly is a controversial one. On the good side, it’s reminded people that some of their common web surfing habits are dangerously insecure. Many websites use HTTPS (secure HTTP) for login, which protects your password. But they revert to insecure HTTP for the rest of the session. After you have logged in, security relies on the browser sending a session cookie – a secret authentication token – in every request. ...

Reuters: Google Inc will begin blocking Facebook and other Web services from accessing its users’ information, highlighting an intensifying rivalry between the two Internet giants. Google will no longer let other services automatically import its users’ email contact data for their own purposes, unless the information flows both ways. It accused Facebook in particular of siphoning up Google contact data, without allowing for the automatic import and export of Facebook users’ information. ...

With the expanding amounts of storage available on cell phones, mp3 players, digital cameras, and gaming devices it’s no surprise that malware is increasingly being transmitted over USB. avast! Software is reporting that out of 700,000 attacks reported by its Community IQ system in October, one in eight were exchanged over USB connections. “Cyber-criminals are taking advantage of people’s natural inclination to share with their friends and the growing memory capacity of USB devices,” says avast! virus analyst Jan Sirmer. ...

Last quarter was the first time ever that US pay-for TV subscription rates declined, and in Q3 2010, cable lost over 518,300 subscribers in total, according to GigaOm. Four of the five biggest cable companies lost customers: Comcast had more than half of the losses at 275,000, Time Warner took a 155,000 subscriber hit, Charter Communications lost 63,800, and Cablevision waved goodbye to 24,500 customers. The third largest cable provider, Cox Communications, is privately held and therefore doesn’t have to announce its subscriber numbers publicly. The number is thus likely even bigger if we could include Cox plus all the smaller cable companies. ...

Just 5 years after founding Facebook, Mark Zuckerberg is worth more than Apple’s iconic chief Steve Jobs. This year, Zuckerberg, 26, added $4.9 billion to his fortune–vaulting to #35 on the Forbes 400 with an estimated fortune of $6.9 billion. Why the jump? Recent private equity investments in Facebook valued the firm at around $23 billion–more than triple its 2009 value of $7 billion. Illiquid private shares in secondary markets point to an even richer valuation. ...

David McCandless recently gave a presentation about data visualization in which he unveiled this graph, which tracked 10,000 Facebook status updates to determine precisely when people in relationships broke up. The results look like this: Note the huge surges around Spring Break, the beginning of Summer, and two weeks before Christmas, as well as the sharp decline on Christmas Day itself. The majority of the breakups are announced on Mondays (Garfield was right – lasagna is awesome. Non sequitor.) The graph also doesn’t show what happens when someone in a relationship makes a detailed graph about ending relationships, but I’m guessing that’s been an instant breakup one out of one times. ...

Mozilla Labs: In our first Prospector experiment, Speak Words, we helped Firefox learn what words you might want to type into the Awesome Bar. We have taken that idea to help you find words in your open tab in our latest experiment. Finding a word in Firefox has always been easy because Firefox will move you to the new word formed by your last keystroke. This means you do not need to type out a word then click a search button to try finding a word that you might have misspelled. Firefox will let you know immediately if the new letter you pressed does not form a word that is on the page. ...

Firefox 4 Beta 2 has been released and you can download it in 10 languages on your Android or Maemo device. The new version comes with a wide range of fixes and improvements. The install size of Firefox Beta has been reduced by 60% (from around 43 MB to 17 MB). A new theme has been included in this version, that gives Firefox a fresh new look and the ability to easily share links with your friends from the Site Menu and the ability to undo closing a tab. Checkout the complete change-log below. ...

For Google Chrome users, viewing PDFs in the browser has been a colossal pain for lo these many moons. That’s why we are (and you should be) thrilled to learn that Google is rolling out a better way to look at PDFs in Chrome. For the time being, Chrome’s built-in PDF viewer will be available through the beta version only. If you’re using the non-beta version of Chrome, you can download the beta to get the PDF-related improvements or enable the PDF viewer by typing about:plugins in address-bar and enable PDF viewer. ...

Mashable: A beta version of Google Instant is now available on many U.S. iPhone and Android mobile devices. According to the Google Blog, the Instant search option is presently on Android 2.2 devices, as well as iPhones and iPods running on iOS 4. As of right now, Google Instant is only available in English, although Google plans on adding more languages and bringing the service to other countries and devices. ...