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Archivo del Autor: Belen De Leon

Turning an Amazon Echo Into a Spy Device Only Took Some Clever Coding

Researchers didn’t have to hack Amazon’s Alexa voice assistant to use it for eavesdropping. They just took advantage of the system in place.
Source: Wired

Twitter axed 142k apps violating ToS in Q1, accounting for 130M ‘low-quality’ Tweets

Twitter is making good on its pledge to fight the persistent problems of spam, bots, harassment, and misinformation that have plagued the social platform for years. Today, in its generally positive Q1 earnings report, the company announced that changes that it has made related to TweetDeck and its API in in the past quarter have translated into real numbers that point to overall improvements in quality on the service.

In the company’s letter to investors, Twitter noted that there are now 90 percent fewer users relying on TweetDeck to create false information and automated engagement spam. It’s not clear if this is due to changes to TweetDeck itself, or simply because of a new and more proactive approach that Twitter is taking (we have asked and will update when we hear back).

In any case, Twitter has been engaged in both. In February, Twitter stopped allowing automating mass retweeting — or TweetDecking, as it’s been called by some — in which power users turned to TweetDeck to retweet posts across masses of accounts they managed, or across smaller user groups of people who managed masses of accounts — a technique that helps Tweet go viral. Some weeks later it moved to suspend a number of accounts that were guilty of the practice.

Policies and enforcement around the company’s API have also been tightened up. Twitter said that in Q1, it removed more than 142,000 applications connected to the API, which in turn were responsible for no less than 130 million “low-quality Tweets” in the quarter — a sizeable volume that spurred a number of interactions and retweets outside those spam accounts, perpetuated by individuals. As with TweetDeck, this was related to changes Twitter had made specifically to how the API was used for mass-actions.

It’s an interesting turn for the company: given that the mass-action Tweeting ability has been so hugely misused, it’s a wonder why Twitter ever allowed it in the first place. It may have been one of those badly-conceived moments where Twitter thought it would help with traffic and activity on the site at a time when it needed to demonstrate growth, and perhaps just to bring more activity to the platform when it was smaller.

In any case, this appears to be just the start of how Twitter hopes to raise the tone, and generally make its platform a safer and nicer place to be. “Our systems continue to identify and challenge millions of suspicious accounts globally per week as a result of our sustained investments in improving information quality on Twitter,” the company notes.

There are also some interesting plans in the pipeline. The company has been on a “health” kick of late, and is looking to crowdsource suggestions for how to improve trust and safety, and reduce abuse and spam, on the platform. An RFP that it issued to stakeholders — and anyone interested in helping — has so far yielded 230 responses from “global institutions”, the company said. “We expect to have meaningful updates in the second quarter, and we’re committed to continuing to share our progress along the way.”

We are listening to the earnings webcast and will update with more related to this as we hear it.


Source: TechCrunch

Aion launches first public blockchain network

If you believe blockchains will proliferate in the coming years, it stands to reason that you will need some sort of mechanism to move information between them, a network of blockchains with bridges and processes for sharing information between entities. That is exactly what The Aion Network is providing with a new blockchain network released today.

The company wants to be the underlying infrastructure for a network of blockchains in a similar way that TCP/IP drove the proliferation of the internet. To that end, the company, which originally began as a for-profit startup called Nuco, has decided to become a not-for-profit organization with the goal of setting up protocols for a set of interconnected blockchains. They now see their role as something akin to the Linux Foundation, helping third party companies build products and creating an ecosystem around their base technology.

Graphic: Aion Networks

“The core design of network we have been building is to connect various networks, and route data and transactions through a public network. We are launching that network today. It allows you to build bridges to other blockchain networks. That public network acts as relayer between blockchains,” Matthew Spoke, CEO and co-founder at Aion Networks told TechCrunch.

While there clearly could be security concerns with a public by-way for blockchain data moving between systems, Spoke says that can be minimized. Instead of transmitting a medical record between a hospital and insurance company, you send a proof that the person had an operation, which the insurance company can check against the coverage rules it has created for that individual and vice versa.

The idea behind this venture is to provide the underlying plumbing to encourage more highly scalable blockchain use cases. Spoke and his team once ran the blockchain practice at Deloitte before starting this venture, and they saw roadblocks to scaling first-hand. “When we were doing enterprise projects, our biggest realization was that the plumbing wasn’t sophisticated enough. The scaling wasn’t meeting specs that enterprise companies would need long term. Because of that, we were not seeing anyone moving beyond proof of concept projects. What we are doing is trying to mature the possible use cases,” he said.

In order to drive adoption, the company is introducing a token or cryptocurrency to be used to move data across the network and build in a level of trust. Spoke believes if the users have skin in the game in the form of tokens, that could create a higher level of trust on the system.

“Instead of paying for infrastructure, you are going to pay to be part of a common trusted protocol. It comes down to the mechanism of consensus and being incentivized to do business in an honest way,” Spoke said

This is probably not something that will get adopted widely overnight. Just because they have built it, they still require a level of utilization for it to really take off, and that will require more blockchain projects. “We still need a few years of pure focus on infrastructure to make sure we are getting these layers right. Every time you move data of any kind there are security vulnerabilities and we need to make sure there are good specs and comfort in using it,” he said.


Source: TechCrunch

Spotify's free tier has side benefit: smarter recommendations – CNET

Unlocking on-demand listening for free users means Spotify is getting better at pin-pointing your preferences. That means the songs it picks for you hit closer to the bull’s-eye.
Source: CNET

There’s an Echo Dot for kids now

This was nothing if not inevitable. Alexa’s steady home takeover just found its way into your kids’ rooms — and it’s doing so with a brightly colored case. Amazon just unveiled the Echo Dot Kids Edition — the first time the company’s popular smart speaker line has targeted children directly.

From a hardware perspective, there’s not really a lot different here. The Echo Dot Kids Edition is essentially a standard Echo Dot, with a color bumper to help it withstand your standard kid jostling and the same “two-year worry-free guarantee” the company introduced on its kids’ Fire Tablets. That means it’s covered for accidental and intentional breakage, should the little one take the thing apart out of curiosity.

At $80, it’s a $30 premium over the standard Dot. That price jump is largely due to the software included herein, making the device a bundle of sorts. It covers two years of FreeTime Unlimited on Alexa — a new premium version of the company’s smart assistant built for kids. That includes a bunch of child-friendly content, including 300 Audible books, an ad-free version of iHeartRadio Family and skills and content from the likes of Disney and National Geographic. Amazon’s also partnered with Disney and Nickelodeon on alarms, so kids can get woken up by the likes of Coco each morning.

Like the free version of FreeTime, it also includes a number of parental controls that can be adjusted directly from the Alexa app, similar to what the company has already rolled out on the tablet side of things. Parents can adjust time limits, filter out explicit content and review their kids’ Alexa activity from the new parental dashboard. The Dot also features the new intercom functionality rolled out from Alexa, but disables the ability to call Echos outside of the home network.

Beyond that, there aren’t any new privacy features baked into the hardware. There’s still that mute button, and parents can set a sleep mode that will disable the device from answering questions. But the microphone can’t be disabled by default, and even in sleep mode, the device is still listening for a wake word. Amazon stands by the same privacy features it’s rolled out on all of its products (encryption, etc.), but many parents will no doubt still be wary about putting an always-listening device into their kids’ room.

The Echo Dot Kids Edition is available for pre-order today. It starts shipping May 9.


Source: TechCrunch

Alexa is going kid-friendly

In a briefing earlier this week, Amazon told TechCrunch that it was surprised by how Alexa has been embraced by families. But while the smart assistant isn’t exactly risqué (with a couple of notable exceptions), there are certainly things you don’t necessarily want your kid getting access to — shopping and explicit music among them.

With that in mind, the company is rolling out an update to the Alexa, designed specifically with concerned parents in mind. On May 9, the assistant is getting its very own version of FreeTime, the parental control program the company introduced for its Fire tablets. The offering is available in both free and premium tiers, the latter of which runs $3 a month for Prime members. If parents are already FreeTime Unlimited subscribers, however, they’ll get the new version for free.

The free version of FreeTime on Alexa (confusing, I know), gives parents device time limits, parental controls over skills and services and the ability to view their kids’ activity via a new parental dashboard in the app. This version of Alexa also maintains the new intercom functionality, but drops the ability to make phone calls outside of the home.

Alexa has also been trained to understand kid questions and speech patterns and has new answers targeted specifically at kids. You can, say, ask it to tell you a dinosaur joke, and it will be suitably groan-inducing.

The premium tier adds a bunch of kid-friendly content to the assistant. The list includes 300 Audible books, ad-free stations from iHeartRadio Family and premium skills and stories from Disney, National Geographic and Nickelodeon. That includes wake-up alarms featuring familiar Disney and Nickelodeon IP, like Coco.

A year of premium will also come bundled with the Echo Dot Kids Edition.


Source: TechCrunch

How mobile money could help the world’s poor – CNET

Digital cash from PayPal, Mastercard and cryptocurrency startups have the potential to break the cycle of poverty.
Source: CNET

13 of our favorite convertibles for summer – Roadshow

Summer’s almost here, and it’s time to put the top down. Here are 13 of our favorite droptops for warm-weather days.
Source: CNET

A One-Minute Attack Let Hackers Spoof Hotel Master Keys

Researchers found—and helped fix—a flaw in Vingcard RFID locks that would let hackers break into any room in hotels around the world.
Source: Wired

USC Wide Receiver Josh Imatorbhebhe's Crazy Floating Jump

Is this normal physics, some type of optical illusion, or just plain magic?
Source: Wired

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