Showing posts with label laptop. Show all posts
Showing posts with label laptop. Show all posts

Saturday, December 3, 2016

Hackers can hack any Visa credit card or debit card in six seconds

Visa credit hacked
Visa credit hacked

02 Dec 2016 , 14:50


It can take hackers just six seconds, a laptop and an internet connection to hack any Visa credit or debit card, new research has revealed. The research, published in the journal “IEEE Security and Privacy”, said that the “distributed guessing attack” circumvents all the security features put in place to protect online payments from fraud. Neither the network, nor the banks are able to detect attackers making multiple, invalid attempts to get payment card data.
The current online payment system does not detect multiple invalid payment requests from different websites. This allows unlimited guesses on each card data field, using up to the allowed number of attempts – typically 10 or 20 guesses – on each website, explained Mohammed Ali, a PhD student in Newcastle University.
“Different websites ask for different variations in the card data fields to validate an online purchase. “This means it’s quite easy to build up the information and piece it together like a jigsaw,” Ali added. The combination of these two factors — unlimited guesses and variation in the payment data fields — makes it easy for attackers to hack all the card details.
Each generated card field can be used in succession to generate the next field and so on. “If the hits are spread across enough websites then a positive response to each question can be received within two seconds – just like any online payment,” Ali warned.
The researchers explained that even starting with no details at all other than the first six digits — which tell you the bank and card type — a hacker can obtain essential pieces of information. These are — card number, expiry date and security code — to make an online purchase within as little as six seconds. Researchers believe this ‘guessing attack’ method could have been used in the recent Tesco cyber attack where the hackers defrauded customers of 2.5 million pounds.
The risk is higher at this time of the year as many people are making online purchases ahead of Christmas. However, researchers found that unlike Visa cards, MasterCard’s centralised network was able to detect the guessing attack after less than 10 attempts – even when those payments were distributed across multiple networks.
The researchers suggested that to minimise the chances of hacking, card-holders should use just one card for online payments and keep the spending limit on that account as low as possible. “If it’s a bank card then keep ready funds to a minimum and transfer over money as you need it,” said Martin Emms, co-author of the research.
IANS

Saturday, October 29, 2016

Acer Aspire S13 review: This might just be the best Windows-based Ultrabook in its price range


By 
The MacBook Air has been the gold standard for ultrabooks almost since its unveiling. At the time it launched, it was the only thin, light and solidly built ultrabook around with decent specifications. Today however, there is a plethora of powerful, gorgeous devices to choose from.
Acer’s Aspire S13 is one such device. It’s slim, light, well-built and more powerful than the Air; it’s also more expensive. It does seem like a great device, but is it worth it?
Build and design: 8/10
Acer Aspire S13 _1 720
First things first. This laptop is thin, very light and looks rather nice. It’s meant to be a business laptop and the muted black finish does help with that image. The entire device seems to be made of metal, though the lid does have a coating of some sort of plastic.
There’s metal under that plastic though, an aspect that we discovered in a rather unfortunate fashion, as you can see below:
Sorry, Acer!
Sorry, Acer!
The device is built very well, with one exception. Everything feels solid and unbendable, but the hinges, they feel like cheap plastic. The hinge mechanism itself is made of metal, but the caps are silvery plastic and very flimsy plastic at that.
Acer Aspire S13 Hinge 720
The plastic pieces around the hinge keep popping open
Another complaint we have with the design of the device is concerning the charger. It’s very compact, smaller even than the MacBook Air’s charger, but the contact point is very flimsy. It doesn’t sit snug in the charging port when plugged in and would have felt at home on a cheaper device.
These are minor niggles in an otherwise great device though. Don’t let those oversights throw you off.
Keyboard and Trackpad: 8.5/10
Acer Aspire S13 keyboard 720
The keyboard and trackpad are a pleasure to use. They’re comfortable and responsive and the trackpad has just the right amount of friction for my taste.
The keyboard is a compact one and lacks a numpad. There are no shared media keys either, but all other functions such as Wi-Fi toggles, brightness and volume controls, etc. can be adjusted in combination with the Fn key.
The keyboard is backlit
The keyboard is backlit
The keys are also very firm in that there’s no wobble when typing. Even if you press a corner, the entire key depresses, which makes for a pleasant typing experience.
The touchpad responds fluidly to gesture inputs and the left-click and right-click buttons are also smooth and responsive. The lack of a touch-screen was a bit of a downer, but overall, I’m very happy with what Acer has done with the keyboard and mouse.
Features: 6/10
Acer Aspire S13 specs 720
The hardware choice for the Acer Aspire is very sensible. You get a 15W Intel Core i7 6500U processor clocked at 2.5GHz (dual-core with HT), 8GB LPDDR3 RAM and a 512GB SSD. The screen resolution is a bit low at 1920×1080, but it’s enough for a 13.3-inch screen and we aren’t complaining.
Acer Aspire S13 ports 720
You get two USB 3.0 ports, one on each side, a USB Type-C 3.1 port and HDMI output. You also get an SD card reader and 802.11ac Wi-Fi with MU-MIMO support, which is to be expected in this day and age.
The fact that all of this is packed into a device that’s as slim and light as the MacBook Air is saying a lot.
The laptop does lose out for its lack of accessories and relatively low-resolution screen – considering we are seeing higher resolution displays from competition.
Display: 7/10
Acer Aspire S13 display 720
The display on the device is an FHD, 13.3-inch IPS panel. It has a matte finish (Thank you, Acer!) and good brightness levels.
Colours are a bit of an issue, they seem a little muted, and black levels are also not up to the mark. We also found banding to be slight problem. Sharpness was on point however, and so were the refresh rates.
The resolution is a bit odd for a 13.3-inch screen. Without scaling, everything feels a tad too small and to make things feel right, you need to scale to 125 or 150 percent. The problem there is that Windows doesn’t handle scaling very well and sharpness is ruined.
Performance: 6.5/10
Acer Aspire S 13 Ice Storm Extreme
In terms of performance, this laptop is right up there alongside the best in its class. Bearing in mind that this device doesn’t come with a graphics card, its CPU performance is actually better than most devices, a step higher up the performance chain.
For comparison, the Acer Aspire S13 scored 44431 in 3DMark Ice Storm Extreme with an i7 6500U, whereas the likes of the Asus G551VW and Dell Inspiron 15 7559, both with the more powerful Intel i7 6700HQ, scored a measly 38,374 and 30,851 respectively. 3DMark Ice Storm Extreme is a CPU intensive test that doesn’t stress the GPU much.
Acer Aspire S 13 Cinebench 15
Even without a dedicated GPU, the Aspire S13 managed 48fps in Grid: Autosport at 720p at the medium preset, which is eminently playable. Obviously, light gaming is possible, but that’s not what the laptop is for.
The video conversion time — using Handbrake — was also quite fast at 11 minutes.
Acer Aspire S 13 Crystal Disk Mark
Another area where the device shines is in the storage benchmarks. Acer very generously equipped the S13 with a 512GB SSD, which leads to stellar read and write rates of 525 MB/s and 414 MB/s respectively.
This laptop is overkill for the average user, but as long as you’re not gaming, you’ll never be left wanting for performance. In fact, the PCMark score of 2912 is among the highest we’ve seen in this category.
There is one problem in this otherwise perfect performance score and that is overheating. Under heavy load, the CPU temperatures cross the 70 degree Celsius mark and the base heats up to 48 degrees Celsius. This is under heavy load though.
Under normal use, the base gets a little warm, but not uncomfortably so.
Battery Life: 5/10
Acer Aspire S 13 PCMark Battery Life
Battery life was a tolerable 3 hours in our benchmarks, which translated to about 4-6 hours of use. This is not bad for daily use, though we wish there was more on offer.
Verdict and Price in India
I enjoyed every moment I spent with the Aspire S13. It’s lightweight and high-performance made it my go-to option whenever I needed something done quickly (it boots up in seconds). If I bought this laptop for myself, I don’t think I’ll be disappointed.
The price of Rs 84,000 is also not that bad. You’ll only get Intel i5 powered devices in this price range and few will offer a 512GB SSD.
The Acer Aspire S13 is among the best laptops I’ve ever tested and if you’re in the market for a workhorse Ultrabook, it might just be the one for you.

Wednesday, October 12, 2016

Microsoft Tasks Pegatron with Making New Surface Hardware



Chinese manufacturer Pegatron Technology will build Microsoft’s next generation of

Surface products, including the Surface Pro 5 and Surface Book 2.
Microsoft’s current plans for the Surface line are currently up in the air. The company has confirmed nothing. Certainly the Surface Pro 4 and Surface Book are unlikely to be refreshed this year. However, a Chinese outlet has offered the clearest indication that the company is developing new products.
Economic Daily News (EDN) says that Chinese manufacturer Pegatron Technology has been tasked with building new Surface devices. Beyond that, we are still left speculating exactly when Microsoft will launch new products. More importantly, we do not know which devices will be launched.
Of course, there is plenty of insider information and speculation to chew through. For example, we know that no new Surface tablets or laptops will arrive this year. However, Microsoft is reportedly going to launch its much-rumored Surface all-in-one PC.
At the moment, Cardinal (PC codename) is expected to arrive in three screen sizes (21, 24, and 27 inches). However, we would say the 24-inch is unlikely, so expect just a 21-inch and 27-inch version. While we are dubious about the need of a Surface desktop, it is a logical hardware progression.
It makes sense that Microsoft will give the all-in-one a clear run without any other competing product launches.

Surface Pro 5 and Surface Book 2

That leaves Microsoft planning the Surface Pro 5 and Surface Book 2. This is where Pegatron’s involvement comes into play. The Chinese company has likely already started building those devices ahead of their launch next year.
Awards and accolades continue to arrive for Microsoft’s excellent hardware. In other words, the Pro 5 and Book have plenty of time before they need to be refreshed. We have reported before that Microsoft is waiting until the launch of Windows 10 Redstone 2 before launching the new hardware. That would mean a spring 2017 announcement.


    Thursday, October 6, 2016

    Asus announces its first laptops with Nvidia’s GTX 1070 graphics cards built in. Prices start at Rs 1,81,990

    Asus announces its first laptops with Nvidia’s GTX 1070 graphics cards built in. Prices start at Rs 1,81,990

    By 
    Asus has unveiled a couple of Nvidia GTX 1070-toting laptops in India. The two devices pack in enough hardware to make a decent gaming rig blush.
    To those not in the know, Nvidia’s 10xx series of graphics cards offer a significant bump in performance when compared to the previous generation. These GPUs, in addition to being more powerful, are also more energy efficient and include modules specifically for enhancing VR performance.
    The first of the devices is the Asus ROG G752S. This laptop packs in an unlocked sixth generation Intel Skylake chip, an Nvidia GTX 1070 and up to 64GB of RAM. Yes, you read that right. The G752 packs in an unlocked, overclockable CPU. Also note that Asus claims to be using the 1070 and not the 1070m, which means that this GPU will offer desktop class performance in a laptop. It won’t beat a desktop-class 1070, but it’ll
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