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Archivo del Autor: Belen De Leon

John McAfee's 'unhackable' Bitcoin wallet is hackable, company admits – CNET

The man himself hasn’t weighed in yet.
Source: CNET

Leak: Google's notchless Pixel 3 surfaces on Reddit – CNET

We’d seen plenty of an alleged Pixel 3 XL, but this could be our first look at the normal Pixel 3 phone.
Source: CNET

Enveritas’ technology lets small growers tap into the market for sustainable coffee

Demand for sustainable coffee is growing, a boon for socially conscious coffee lovers — but many small growers are missing out because they lack the ability to verify that their coffee beans are grown using fair labor and eco-friendly practices. In fact, verification is often accessible only to large coffee estates or cooperatives. Enveritas wants to change that. The nonprofit, which recently completed Y Combinator’s accelerator program, uses geospatial analysis to make the process more efficient, enabling it to offer free verification to small farms.

Enveritas’ goal is to end poverty in the coffee sector by 2030. Before founding Enveritas in 2016, CEO David Browning and head of operations Carl Cervone worked at TechnoServe, a nonprofit that serves businesses in developing economies. Browning led TechnoServe’s global coffee practice, while Cervone advised coffee growers in Africa, Asia and Latin America about sustainability trends.

Browning tells TechCrunch that TechnoServe’s coffee team spent a lot of time working with small farmers, many of whom don’t have access to sustainability verification because their farms are too remote or small. The typical coffee grower served by Enveritas has less than two hectares of land, lives on less than $2 a day and relies on cash crops for their family’s income.

“The existing solutions work well for large estates and it can also be effective for farmers organized into cooperatives, but many of the world’s coffee farmers are smaller farmers and not organized into estates,” Browning explains. “For those farmers, the existing solutions can be more difficult to access.”

Part of the reason is because many verification solutions rely on field workers who visit farms and track sustainability standards using pen and paper, a time-consuming and costly process.

To develop a more efficient and scalable system, Enveritas uses geospatial and machine learning to identify coffee farms through satellite imagery and monitor for issues like deforestation. Though it still relies on local partners to visit farms and confirm that sustainability standards are being followed, its technology enables Enveritas to provide verification services for free.

Enveritas checks for 30 standards, which it divides into three categories: social, environmental and economic. “Social” includes no child labor and workers’ rights; “environmental” checks for problems like deforestation, pollution or banned pesticides; and “economic” covers fair wages, ethical business practices and transparent pricing, among other standards.

The organization currently operates in 10 countries, including Uganda, Indonesia, Ethiopia, Nicaragua and Costa Rica, with plans to expand into more markets.

Sustainable coffee isn’t just in demand by caffeine lovers with a penchant for social justice. Many of the world’s biggest coffee companies, including Illy and Starbucks, have launched sustainability initiatives as part of their corporate responsibility measures. Offering coffee grown using fair labor or environmentally friendly practices also helps differentiate their products in a crowded marketplace. Research by the National Coffee Association, an American trade group, recently found that many millennials prefer sustainable coffee, with up to two-thirds of 19 to 24-year-olds surveyed said they pick their coffee based on whether it was grown using environmentally friendly practices and fair labor.

While coffee is currently its main focus, Browning says Enveritas’ system can be applied to other agricultural products that need more visibility in their supply chains. For example, it also can be used to verify the sustainability of cocoa, cotton and palm oil.

As a nonprofit, Enveritas faces different funding challenges from other tech startups. Browning says it is currently at the equivalent of being ready for a Series A. Much of its backing comes from coffee companies (Enveritas can’t disclose which ones) that hope to benefit from Enveritas’ solutions.

“One of the advantages of this system is that it reduces the cost for coffee companies relative to the traditional pen and paper system, but it’s also simultaneously free for farmers,” Browning says. “That’s one of the most compelling innovations, so it’s a win-win for both.”


Source: TechCrunch

Firefox mobilizes a three-pronged attack against ad-based tracking

The Firefox browser will eventually block ad-based tracking by default. To get there, Mozilla plans to roll out new features over the next several months, such as an ad-blocking component already available in Firefox Nightly.

The post Firefox mobilizes a three-pronged attack against ad-based tracking appeared first on Digital Trends.


Source: Digital trends

Weebly brings more e-commerce features to mobile

Weebly is part of Square now, but it continues to update as a standalone product. This week, for example, the company announced a number of new e-commerce features for the Weebly mobile app.

Those features include the ability to ship and print labels, to respond to customer questions (via Facebook Messenger, which can be embedded on Weebly sites), to approve customer reviews, to create branded coupon codes and to edit every aspect of your store, including product listing and pricing — all from the app.

Much of this functionality already existed on desktop, so the announcement is about moving these capabilities onto smartphones. In a blog post, the company outlined a vision for the mobile phone to become “the new back office.”

Weebly CEO David Rusenko told me that as his team has been adding more features for merchants, he wants people to think of Weebly “increasingly as an e-commerce platform,” not just a simple website builder. And support for mobile was an important part of that.

“This is what our customers were requesting,” Rusenko said. “Basically, people are taking their entrepreneurial lifestyle and having the freedom to work on things wherever you are.”

And apparently mobile usage is already up significantly, with a 75 percent increase over the past year in customers using the Weebly mobile app to manage orders, as well as a 120 percent increase in mobile usage to manage product listings.


Source: TechCrunch

Firefox's New Browser Will Keep Brands From Stalking You

Future versions of Firefox will block third-party tracking codes, and trackers that take too long to load, by default.
Source: Wired

The Lego Bugatti Chiron Goes 18 MPH (and Is *Made of *Lego*)

Where the ‘real’ Chiron produces 1,500 horsepower from a quad-turbocharged W16 engine and can hit 261 mph, the Lego lookalike makes 5.3 horses from 2,304 tiny motors.
Source: Wired

La tecnogobernanza china: ¿quién necesita democracia si tiene datos?

Gracias a una combinación de vigilancia, inteligencia artificial y ‘big data’, China está silenciando cada vez más las voces críticas y dirigiendo el país mediante algoritmos opacos capaces sepultar a los ciudadanos en listas negras y campos de reeducación política y religiosa
Source: MIT

Empleos 2.0: el cazador de errores de código que nos protege en la sombra

Sin formación académica, con un ordenador trucado y a miles de kilómetros de distancia, Evan Ricaford se dedica a buscar errores en el software de empresas de las que tal vez seamos usuarios. Al veces logra un buen sueldo, otras, debe conformarse con una simple camiseta
Source: MIT

John McAfee’s ‘unhackable’ Bitfi wallet got hacked — again

If the security community could tell you just one thing, it’s that “nothing is unhackable.” Except John McAfee’s cryptocurrency wallet, which was only unhackable until it wasn’t — twice.

Security researchers have now developed a second attack, which they say can obtain all the stored funds from an unmodified Bitfi wallet. The Android-powered $120 wallet relies on a user-generated secret phrase and a “salt” value — like a phone number — to cryptographically scramble the secret phrase. The idea is that the two unique values ensure that your funds remain secure.

But the researchers say that the secret phrase and salt can be extracted, allowing private keys to be generated and the funds stolen.

Using this “cold boot attack,” it’s possible to steal funds even when a Bitfi wallet is switched off. There’s a video below.

The researchers, Saleem Rashid and Ryan Castellucci, uncovered and built the exploits as part of a team of several security researchers calling themselves “THCMKACGASSCO” (after their initials). The two researchers shared them with TechCrunch prior to its release. In the video, Rashid is shown setting a secret phrase and salt, and running a local exploit to extract the keys from the device.

Rashid told TechCrunch that the keys are stored in the memory longer than Bitfi claims, allowing their combined exploits to run code on the hardware without erasing the memory. From there, an attacker can extract the memory and find the keys. The exploit takes less than two minutes to run, Rashid said.

“This attack is both reliable and practical, requiring no specialist hardware,” said Andrew Tierney, a security researcher with Pen Test Partners, who verified the attack.

Tierney was one of the hackers behind the first Bitfi attack. The McAfee-backed company offered a $250,000 bounty for anyone who could carry out what its makers consider a “successful attack.” But Bitfi declined to pay out, arguing that the hack was outside the scope of the bounty, and instead resorted to posting threats on Twitter.

This new attack, Tierney says, “meets the requirements of the bounty in spirit, even if it does not meet the specific terms that Bitfi have set.”

McAfee earlier this month said, “the wallet is hacked when someone gets the coins.”

Bill Powel, vice president of operations at Bitfi, told TechCrunch in an email that the company defines a hack “as anything that would allow an attacker to access funds held by the wallet.”

“Because the device does not store private keys, that is what prompted the unhackable claim,” he said.

When pressed, Powel did not address the specific claims of the cold boot attack. McAfee, who was copied on the email to Bitfi, did not respond.

Within an hour of the researchers posting the video, Bitfi said in a tweeted statement that it has “hired an experienced security manager, who is confirming vulnerabilities that have been identified by researchers.”

“Effective immediately, we are closing the current bounty programs which have caused understandable anger and frustration among researchers,” it added.

The statement also said it will no longer use the “unhackable” claim on its website.

Rashid said he has no immediate plans to release the exploit code so as to prevent the estimated few thousand Bitfi users from being put at risk.

Just last month, Bitfi won the Pwnie Award for Lamest Vendor Response, a traditional award given out at the Black Hat conference for companies that react the worst in response to security issues.


Source: TechCrunch

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