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The online ad industry has attacked Mozilla over its decision to block third-party cookies in a future release of Firefox, calling the move "dangerous and highly disturbing," and claiming that it will result in more ads shown to users. The fierce reaction came from the Interactive Advertising Bureau (IAB) and Association of National Advertisers (ANA), both of which laid out positions in blog posts on March 14.

In their blogs, the two groups lambasted Mozilla, predicting dire consequences, including the shuttering of small businesses and small websites, fewer choices for online users, and more ads in Firefox. "If Mozilla follows through on its plan ... the disruption will disenfranchise every single Internet user," said Randall Rothenberg, president and CEO of the IAB, in his post. "All of us will lose the freedom to choose our own online experiences; we will lose the opportunity to monitor and protect our privacy; and we will lose the chance to benefit from independent sites ... because thousands of small businesses that make up the diversity of content and services online will be forced to close their doors."

What raised the IAB's and ANA's hackles was Mozilla's decision last month to automatically block all third-party tracking cookies in a future version of Firefox, perhaps as soon as June with the release of Firefox 22. Cookies are used by online advertisers to track users' Web movements, then deliver targeted ads, a practice labeled "online behavioral advertising," or OBA, by the ad industry. The new Firefox policy will allow cookies presented from domains that users actually visit -- dubbed a "first-party" site -- but will automatically block those generated by a third-party domain unless the user had previously visited the cookie's site-of-origin.

Microsoft Corp. has agreed to change its policies and always tell email customers when it suspects there has been a government hacking attempt after widespread hacking by Chinese authorities was exposed. Microsoft experts concluded several years ago that Chinese authorities had hacked into more than a thousand Hotmail email accounts, targeting international leaders of China's Tibetan and Uighur minorities in particular — but it decided not to tell the victims, allowing the hackers to continue their campaign, according to former employees of the company. On Wednesday, after a series of requests for comment from Reuters, Microsoft said it would change its policy on notifying customers. Microsoft spokesman Frank Shaw said the company was never certain of the origin of the Hotmail attacks.

The company also confirmed for the first time that it had not called, emailed or otherwise told the Hotmail users that their electronic correspondence had been collected. The company declined to say what role the exposure of the Hotmail campaign played in its decision to make the policy shift. The first public signal of the attacks came in May 2011, though no direct link was immediately made with the Chinese authorities.

That's when security firm Trend Micro Inc announced it had found an email sent to someone in Taiwan that contained a miniature computer program. The program took advantage of a previously undetected flaw in Microsoft's own web pages to direct Hotmail and other free Microsoft email services to secretly forward copies of all of a recipient's incoming mail to an account controlled by the attacker. Trend Micro found more than a thousand victims, and Microsoft patched the vulnerability before the security company announced its findings publicly

The Web was designed to bring people together and make knowledge freely available. It has changed the world for good and improved the lives of billions. Yet, many people are still unable to access its benefits and, for others, the Web comes with too many unacceptable costs. Everyone has a role to play in safeguarding the future of the Web. The Contract for the Web was created by representatives from over 80 organizations, representing governments, companies and civil society, and sets out commitments to guide digital policy agendas. To achieve the Contract’s goals, governments, companies, civil society and individuals must commit to sustained policy development, advocacy, and implementation of the Contract text.

"Danny O'Brien from the EFF has a weblog post about how the Encrypted Media Extension (EME) proposal will continue to be part of HTML Work Group's bailiwick and may make it into a future HTML revision." From O'Brien's post: "A Web where you cannot cut and paste text; where your browser can't 'Save As...' an image; where the 'allowed' uses of saved files are monitored beyond the browser; where JavaScript is sealed away in opaque tombs; and maybe even where we can no longer effectively 'View Source' on some sites, is a very different Web from the one we have today. It's a Web where user agents—browsers—must navigate a nest of enforced duties every time they visit a page. It's a place where the next Tim Berners-Lee or Mozilla, if they were building a new browser from scratch, couldn't just look up the details of all the 'Web' technologies. They'd have to negotiate and sign compliance agreements with a raft of DRM providers just to be fully standards-compliant and interoperable."

When I first started reading Ars Technica, performance of a processor was measured in megahertz, and the major manufacturers were rushing to squeeze as many of them as possible into their latest silicon. Shortly thereafter, however, the energy needs and heat output of these beasts brought that race crashing to a halt. More recently, the number of processing cores rapidly scaled up, but they quickly reached the point of diminishing returns. Now, getting the most processing power for each Watt seems to be the key measure of performance. None of these things happened because the companies making processors ran up against hard physical limits. Rather, computing power ended up being constrained because progress in certain areas—primarily energy efficiency—was slow compared to progress in others, such as feature size. But could we be approaching physical limits in processing power? In this week's edition of Nature, The University of Michigan's Igor Markov takes a look at the sorts of limits we might face.

In a post on Wednesday, researchers Alex Halderman and Nadia Heninger presented compelling research suggesting that the NSA has developed the capability to decrypt a large number of HTTPS, SSH, and VPN connections using an attack on common implementations of the Diffie-Hellman key exchange algorithm with 1024-bit primes. Earlier in the year, they were part of a research group that published a study of the Logjam attack, which leveraged overlooked and outdated code to enforce "export-grade" (downgraded, 512-bit) parameters for Diffie-Hellman. By performing a cost analysis of the algorithm with stronger 1024-bit parameters and comparing that with what we know of the NSA "black budget" (and reading between the lines of several leaked documents about NSA interception capabilities) they concluded that it's likely NSA has been breaking 1024-bit Diffie-Hellman for some time now. The good news is, in the time since this research was originally published, the major browser vendors (IE, Chrome, and Firefox) have removed support for 512-bit Diffie-Hellman, addressing the biggest vulnerability. However, 1024-bit Diffie-Hellman remains supported for the forseeable future despite its vulnerability to NSA surveillance. In this post, we present some practical tips to protect yourself from the surveillance machine, whether you're using a web browser, an SSH client, or VPN software. Disclaimer: This is not a complete guide, and not all software is covered.