This is interesting: To prevent the problems of customer binding, and losing business when darknet markets go down, merchants have begun to leave the specialized and centralized platforms and instead ventured to use widely accessible technology to build their own communications and operational back-ends. Instead of using websites on the darknet, merchants are now operating … Read More “The Evolution of Darknets” »
Category: cryptocurrency
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This is clever: How the attack works: Attacker added tens of malicious servers to the Electrum wallet network. Users of legitimate Electrum wallets initiate a Bitcoin transaction. If the transaction reaches one of the malicious servers, these servers reply with an error message that urges users to download a wallet app update from a malicious … Read More “New Attack Against Electrum Bitcoin Wallets” »
This is well-worth reading (non-paywalled version). Here’s the opening: Cryptocurrencies, although a seemingly interesting idea, are simply not fit for purpose. They do not work as currencies, they are grossly inefficient, and they are not meaningfully distributed in terms of trust. Risks involving cryptocurrencies occur in four major areas: technical risks to participants, economic risks … Read More “Nicholas Weaver on Cryptocurrencies” »
Ross Anderson has a new paper on cryptocurrency exchanges. From his blog: Bitcoin Redux explains what’s going wrong in the world of cryptocurrencies. The bitcoin exchanges are developing into a shadow banking system, which do not give their customers actual bitcoin but rather display a “balance” and allow them to transact with others. However if … Read More “Regulating Bitcoin” »
Researchers have exploited a flaw in the cryptocurrency Monero to break the anonymity of transactions. Research paper. BoingBoing post. Powered by WPeMatico
Interesting paper “A first look at browser-based cryptojacking“: Abstract: In this paper, we examine the recent trend towards in-browser mining of cryptocurrencies; in particular, the mining of Monero through Coinhive and similar code-bases. In this model, a user visiting a website will download a JavaScript code that executes client-side in her browser, mines a cryptocurrency, … Read More “Hijacking Computers for Cryptocurrency Mining” »
A water utility in Europe has been infected by cryptocurrency mining software. This is a relatively new attack: hackers compromise computers and force them to mine cryptocurrency for them. This is the first time I’ve seen it infect SCADA systems, though. It seems that this mining software is benign, and doesn’t affect the performance of … Read More “Water Utility Infected by Cryptocurrency Mining Software” »
This is a clever attack. After gaining control of the coin-mining software, the malware replaces the wallet address the computer owner uses to collect newly minted currency with an address controlled by the attacker. From then on, the attacker receives all coins generated, and owners are none the wiser unless they take time to manually … Read More “New Malware Hijacks Cryptocurrency Mining” »
I agree with Lorenzo Franceschi-Bicchierai, “Cryptocurrencies aren’t ‘crypto’“: Lately on the internet, people in the world of Bitcoin and other digital currencies are starting to use the word “crypto” as a catch-all term for the lightly regulated and burgeoning world of digital currencies in general, or for the word “cryptocurrency” — which probably shouldn’t even … Read More ““Crypto” Is Being Redefined as Cryptocurrencies” »
The press is reporting a $32M theft of the cryptocurrency Ethereum. Like all such thefts, they’re not a result of a cryptographic failure in the currencies, but instead a software vulnerability in the software surrounding the currency — in this case, digital wallets. This is the second Ethereum hack this week. The first tricked people … Read More “Ethereum Hacks” »