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Malicious Git repos could see an attacker remotely execute code on your system

May30
by on May 30, 2018 at 4:38 pm
Posted In: Around the Web


If you use Git, it’s time to update it. Like, now. The latest version of the popular source management software addresses two frightening bugs, which could see an attacker execute their own arbitrary code on a victim’s computer, should the latter clone a malicious repository. The first bug has a CVE number of CVE-2018-11235, and was reported by security researcher Etienne Stalmans. This exploits a flaw in Git where sub-module names provided by the .gitmodule file are improperly validated when appended to $GIT_DIR/Modules. This leaves it open to a pretty standard directory hopping attack. Including “../” in a name could…

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Here’s how much it costs to launch a 51% attack on PoW cryptocurrencies

May30
by on May 30, 2018 at 4:08 pm
Posted In: Around the Web, cryptocurrency, Finance, Hard Fork, Insights


Repeated 51 percent attacks on proof-of-work (PoW) cryptocurrencies have triggered a critical dialogue about the security of blockchain networks. Last week, a researcher showed that a cryptocurrency worth $2 billion can be hacked profitably with as little as $1.5 million. One cryptocurrency enthusiast decided to take a deeper dive. Reddit user xur17 has created crypto51.app, a website that tracks the costs of performing hourly 51 percent attacks on PoW cryptocurrencies. The results are startling. As per the website calculations, it will only take $2,990 to keep an attack going on Bitcoin Gold for one hour, $2,216 on Ethereum Classic, $1,124…

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a couple of laughzillas on a blue diamond background

Here’s how much it costs to launch a 51% attack on PoW cryptocurrencies

May30
by on May 30, 2018 at 4:08 pm
Posted In: Around the Web, cryptocurrency, Finance, Hard Fork, Insights


Repeated 51 percent attacks on proof-of-work (PoW) cryptocurrencies have triggered a critical dialogue about the security of blockchain networks. Last week, a researcher showed that a cryptocurrency worth $2 billion can be hacked profitably with as little as $1.5 million. One cryptocurrency enthusiast decided to take a deeper dive. Reddit user xur17 has created crypto51.app, a website that tracks the costs of performing hourly 51 percent attacks on PoW cryptocurrencies. The results are startling. As per the website calculations, it will only take $2,990 to keep an attack going on Bitcoin Gold for one hour, $2,216 on Ethereum Classic, $1,124…

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Great Scott! Scientists just invented a ‘flux capacitor’ for quantum computers

May30
by on May 30, 2018 at 3:46 pm
Posted In: Around the Web


On November 5th 1955 the fictional Doctor Emmitt Brown was hanging a clock in his bathroom when he slipped and hit his head on the side of a sink. As he recovered from the blow, he had a vision: he would build the flux capacitor and thereby make time travel possible. A not-fictional team of scientists from Australia and Switzerland recently invented one in real life. But don’t go nuts: it breaks time-reversal symmetry, but it does not make time travel possible. What it does: The real-life flux capacitor is like a tuning fork for quantum systems. It channels microwaves…

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a couple of laughzillas on a blue diamond background

Great Scott! Scientists just invented a ‘flux capacitor’ for quantum computers

May30
by on May 30, 2018 at 3:46 pm
Posted In: Around the Web


On November 5th 1955 the fictional Doctor Emmitt Brown was hanging a clock in his bathroom when he slipped and hit his head on the side of a sink. As he recovered from the blow, he had a vision: he would build the flux capacitor and thereby make time travel possible. A not-fictional team of scientists from Australia and Switzerland recently invented one in real life. But don’t go nuts: it breaks time-reversal symmetry, but it does not make time travel possible. What it does: The real-life flux capacitor is like a tuning fork for quantum systems. It channels microwaves…

This story continues at The Next Web

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