The Ethereum Classic (ETC) blockchain was recently compromised by a hacker who spent 88,500 tokens (worth $500,000) then used a lot of computing power to roll back the blockchain so they could get the tokens back. The original tokens are now worthless because they belong to blocks that aren't part of the chain. Major cryptocurrency exchanges have halted trading of (ETC).
From Ars Technica:
Stated a different way, a rollback attack generates a new fork of the blockchain. This causes nodes to replace the original blockchain with the new one and makes it possible for attackers to reverse previously made transactions. Rollback attacks require control of a substantial fraction of the total hashpower devoted to generating the coin's blockchain for a period long enough to pull off the attack. Bitcoin creator Satoshi Nakamoto warned of the key limitation in his white paper introducing the digital coin.
Coinbase paused movements of affected ETC funds to prevent any double spends from hitting its users. Meanwhile, the Kraken Exchange temporarily halted ETC deposits and withdrawals and plans to bring ETC funding back online once exchange officials believe it is safe to do so. ETC officials, for their part, have confirmed that double spends are affecting the currency, but they have yet to say more.
Eurogamer’s Will Judd flirts with heresy: “Are mechanical keyboards really good for gaming?” When it comes to PC gaming peripherals, stats and specs drive purchases. Gaming monitors became popular because they offered lower latency or higher refresh rates, while gaming mice boasted higher sensitivities and improved tracking accuracy. Yet this quantitative trend doesn’t seem to […]
Tim Cook waved goodbye as Jony Ive pulled out of the car lot for the last time. Without dropping the smile, Cook tilted his head at Jeff Williams. “Finally,” he whispered though his teeth. “We can fix the fucking keyboards” Here’s Benjamin Mayo, quoting Ming-Chi Kuo: Apple to include new scissor switch keyboard in 2019 […]
The escalating tariff slap-fight between the United States of America and the People’s Republic of China is messing with so many bottom lines that the only people playing the market and making bank are those with companies that make red ink in their portfolios. Even Apple, a company that pretty much prints its own damn […]
With enough practice and commitment, anyone can be a visual artist. But without the right instruction, that time spent honing your skills could seem like an eternity. If you really want to see where your talent can take you, you need sound fundamentals – and no matter what discipline or genre you lean toward, the […]
Theoretically, there’s never been an easier time for marketers. The ubiquity of social media means a good word – or a good brand – can spread like wildfire with very little effort. But as limitless as the internet is, there’s a lot of competition and noise to contend with. And the vast graveyard of failed […]
They might be the shiny new thing, but AirPods aren’t for everybody. Maybe you’re looking for a new sound or you understandably lost those tiny buds during a brisk run. If so, here’s 10 headphones and earbuds that break out of the Apple mode with a return to quality and wearability. Klipsch R5 Bluetooth Neckband […]