Crime

British Army's Twitter and YouTube Accounts Compromised to Promote Crypto Scams (engadget.com) 16

The British army is "investigating an apparent hack," reports Engadget, after its official Twitter and YouTube accounts were compromised Sunday: News of the breach was first reported by Web3 is Going Great . According to the blog, both accounts were simultaneously compromised to promote two different cryptocurrency scams.

Although it has since been scrubbed, the army's verified Twitter account was briefly changed to look like a page for The Possessed, a project involving a collection of 10,000 animated NFTs with a price floor of 0.58 Ethereum (approximately $1,063). During that time, the account tweeted out multiple links to a fake minting website....

Over on YouTube, the army's channel [had] been made to look like a page for Ark Invest...livestreaming videos that repurpose old footage of Elon Musk, Jack Dorsey and Ark CEO Katie Wood discussing cryptocurrency. The clips feature an overlay promoting "double your money" Bitcoin and Ethereum scams. According to Web3 is Going Great, a similar scheme netted scammers $1.3 million this past May. It's unclear who is behind the attacks.

Bitcoin

Is El Salvador's Bitcoin Experiment Authoritarian Propaganda? (nytimes.com) 73

What exactly happened after El Salvador president Nayib Bukele made Bitcoin a legal tender for the country? "As Bitcoin has dropped more than 50 percent of its value this year, there have been suggestions that El Salvador's investment has pushed the country to the brink of bankruptcy," writes a Salvadoran political/human rights journalist in the New York Times.

"However, implying that the country's risk of default derives from the crypto-enthusiasm is wrong: The economic turmoil preceded and is bigger than that." The article notes that prior to their move into Bitcoin, "the Salvadoran economy was already stretched. Total debt amounted to about 90 percent of G.D.P., a large chunk of which had been accumulated by prior administrations or spurred by pandemic-related expenses."

But what are we missing with this focus on Bitcoin? Mr. Bukele has weaponized Bitcoin to whitewash his government's growing authoritarianism on the world stage. By spreading his propaganda, Bitcoin believers are promoting a product — and lining their pockets — at the expense of our rights and livelihoods.... Over the past three months, the government has used a state of emergency to imprison almost 40,000 people, often without defense. Mr. Bukele has begun to crack down on press freedom, through a gag law that prohibits reproducing messages from gangs and his government hasn't investigated the illegal use of Pegasus spyware to monitor dozens of journalists who cover El Salvador, including me, from independent news outlets between 2020 and 2021. Reporters have already fled the country, fearing reprisal for doing their jobs....

It's pretty obvious to anyone who visits any place in El Salvador other than its beaches that Mr. Bukele is not building a techno-utopia; he's building a run-of-the-mill authoritarian state in a tech disguise. Bitcoiners would do well to remember that when they cheer for Mr. Bukele, they're not ushering in the technology of the future; they're enabling a regime that's violating the human rights of its citizens. After all, the economic freedom Bitcoin promises is worth nothing to Salvadorans if it's the only freedom we can hope to have.

But even ignoring human rights issues — the Bitcoin experiment remains unpopular in El Salvador: Remittances account for more than 20 percent of El Salvador's G.D.P., because of a large diaspora mainly based in the United States. But, according to the Central Bank of El Salvador, only 1.5 percent of remittances went through digital wallets in April, which shows Salvadorans haven't gotten onboard with Bitcoin despite the promise of needed savings. And Mr. Bukele's plan for selling his Bitcoin bonds has stalled.

Just one year into Mr. Bukele's Bitcoin experiment, average Salvadorans can tell that Bitcoin isn't working for them. In May, a national poll showed that 71 percent of Salvadorans said they didn't see any benefit from the law for their family economy. Another found that about two of every 10 Salvadorans support the decision to adopt Bitcoin. Those Salvadorans haven't adopted the currency. A paper published in April by the National Bureau of Economic Research concludes that "despite the legal tender status of Bitcoin and the large incentives implemented by the government, the cryptocurrency is largely not an accepted medium of exchange in El Salvador...." A December national poll showed that only about 11 percent of respondents believed the main beneficiaries of the Bitcoin law are the people, while about 80 percent believed it's either the rich, foreign investors, banks, businesspeople or the government.

Crime

School Recovers Ransomware Paid in Bitcoin - Makes a Profit (dw.com) 51

Slashdot reader thegarbz writes: In 2019 Maastricht University in the Netherlands was hit with a ransomware attack which locked 25,000 staff and students out of their research data. The university agreed to pay a ransom of €200,000 to unlock the encrypted data, reports German broadcaster DW. It seems that a small part of the ransom has been recovered, but with a twist.

As part of an investigation into the cyberattack, Dutch police tracked down a bank account belonging to a money launderer in Ukraine, into which a relatively small amount of the ransom money — around €40,000 worth of Bitcoin — had been paid.

Prosecutors were able to seize the account in 2020 and found a number of different cryptocurrencies. The authorities were then able to return the ransom back to the university after more than two years. But the value of the Bitcoin held in the Ukrainian account has increased from its then-value of €40,000 to €500,000.

A university official said the money will go into "a fund to help financially strapped students."


Bitcoin

Citing Climate Concerns, New York Denies Permit to Bitcoin Mining Plant (nbcnews.com) 27

An anonymous reader shares this report from NBC News: A controversial bitcoin mining operation on the largest of central New York's Finger Lakes does not meet the requirements of state climate laws, New York's Department of Environmental Conservation ruled Thursday, denying an air permit request the entity's owner, Greenidge Generation LLC., made in March 2021.

Renewing the air permit for the Greenidge facility on Seneca Lake "would be inconsistent with or would interfere with the attainment of statewide greenhouse gas emission limits," the Department of Environmental Conservation, or DEC, said in its ruling. It added that the company, which burns natural gas at its plant, has "failed to demonstrate that the continued operation of the facility is justified notwithstanding this inconsistency, as it has not provided any electric system reliability or other ongoing need for the facility." Greenhouse gas emissions from the plant have increased "dramatically" since a previous permit was issued to Greenidge in 2016 and after the 2019 enactment of New York's Climate Leadership and Community Protection Act, DEC said.

Local residents and environmental groups lauded the decision. Greenidge said it would continue to operate the plant under its current permit while it challenged the DEC ruling....

Greenidge took over a mothballed power plant on the shores of Seneca Lake in 2014 and requested permits to operate it as a so-called peaker plant, providing electricity to the grid in times of heavy use. While the operation initially supplied most of its power to the grid, DEC found its main purpose has become bitcoin mining.

The article adds that the global usage of electricity for bitcoin mining "roughly equals the consumption of Pakistan, according to the University of Cambridge Bitcoin Electricity Consumption Index."
EU

EU Moves To Rein in 'Wild West' of Crypto Assets With New Rules (theguardian.com) 21

The EU has moved to rein in the "wild west" of crypto assets by agreeing a groundbreaking set of rules for the sector, adding to pressure on the UK and US to introduce their own curbs. From a report: Representatives from the European parliament and EU states inked an agreement late on Thursday that contains measures to guard against market abuse and manipulation, as well as requiring that crypto firms provide details of the environmental impact of their assets. "Today, we put order in the wild west of crypto assets and set clear rules for a harmonised market," said Stefan Berger, the German MEP who led negotiations on behalf of the parliament. Referring to the recent slump in cryptocurrency prices -- the total value of the market has fallen from $3tn last year to less than $900bn -- Berger added: "The recent fall in the value of digital currencies shows us how highly risky and speculative they are and that it is fundamental to act." The markets in crypto assets (MiCA) law is expected to come into force at about the end of 2023. Globally, crypto assets are largely unregulated, with national operators in the EU required only to show controls for combating money laundering.
EU

No AML Checks For Most Transfers To Unhosted Crypto Wallets, EU Policymakers Decide (coindesk.com) 6

A Wednesday meeting secured a final deal on anti-money laundering legislation for crypto transfers and largely overturned a proposal from the EU Parliament to impose laundering checks on all payments to private wallets. CoinDesk reports: The final proposals will mean customer identity needs to be verified for even the smallest crypto transfers, if it's between two regulated digital wallet providers -- but payments to unhosted private wallets will largely be left out of laundering checks. EU lawmakers and government representatives have been meeting over the last three months to hash out a political deal on the bill, which was introduced in July 2021 by the European Commission. Two sources leaving the meeting, who asked not to be named, told CoinDesk a deal had been reached on the legislation after just over an hour of talks.

Just under an hour following the publication of this article, EU lawmaker Ondrej Kovarik confirmed the provisional deal in a tweet, saying that it "strikes the right balance in mitigating risks for fighting money laundering in the crypto sector without preventing innovation and overburdening businesses." Outside the meeting room, Kovarik told CoinDesk that negotiators had found a "good balance" that would not prevent innovation. "It will allow the further development of crypto in Europe," Kovarik said.

For the rules on transfers to unhosted wallets, Kovarik said the final result had "moved quite far from the initial proposal of the European Parliament" -- something likely to be met by a sigh of relief by many in the industry. Kovarik said those unhosted wallet rules would only apply when transfers were made to a person's own private wallet, and only when the value was over 1,000 euros ($1,052). [...] Lawmakers and governments overturned European Commission plans to exempt small transactions, arguing that price volatility and the ability to break up payments into smaller chunks would make it unworkable for crypto.
Further reading: Crypto Rules To Make Europe a Global Leader As Prices Plunge (The Associated Press)
Businesses

Crypto Hedge Fund Three Arrows Set for Court-Ordered Liquidation (bloomberg.com) 56

A British Virgin Islands court ordered the liquidation of Three Arrows Capital, the crypto hedge fund that bet big on everything from Bitcoin to the ill-fated Luna tokens and then succumbed to a $2 trillion wipeout of the digital-asset markets. From a report: The court, which made the order on Monday, has appointed two partners at consulting and advisory firm Teneo to handle the liquidation, according to a person familiar with the matter, who declined to be identified because the information is confidential. Teneo will oversee talks with potential buyers that may be interested in Three Arrows's remaining holdings, such as tokens or equity stakes in crypto startups, the person added. A website will be set up to locate creditors and determine who is owed what. Three Arrows has invested in a range of decentralized finance platforms such as Aave and dYdX, as well as crypto infrastructure firms such as StarkWare, according to its website. It's not immediately clear what or how much of these holdings will be subject to a sale.
Bitcoin

Bitcoin is the Only Coin the SEC Chair Will Call a Commodity (axios.com) 65

The chairman of the U.S. Securities and Exchange Commission (SEC), Gary Gensler, said on CNBC's Squawk Box that the only token he would lump in with commodities was bitcoin. From a report: Gensler pointedly declined to name any cryptocurrency other than the original one, notable because the market has been operating under the assumption that there is a sort of wink-and-nod understanding that ether is also not a security. "Many of these financial assets, crypto assets, have the key attributes of a security... some like bitcoin, and that's the only one, Jim, I'm going to say, because I'm not going to talk about any of these tokens, my predecessors and others have said they're a commodity," Gensler said. He made the comment as he discussed the importance of collaborating with the Commodity Futures Trading Commission (CFTC).
Bitcoin

Russian Parliament Approves Tax Break For Issuers of Digital Assets (reuters.com) 38

Russian lawmakers on Tuesday approved a draft law that would potentially exempt issuers of digital assets and cryptocurrencies from value-added tax. Reuters reports: Unprecedented Western sanctions have hit the heart of Russia's financial system over events in Ukraine and lawmakers have scrabbled to bring in new legislation to soften the blow. The draft law, approved by State Duma members in the second and third readings on Tuesday, envisages exemptions on value-added tax for issuers of digital assets and information systems operators involved in their issue. It also establishes tax rates on income earned from the sale of digital assets.

The current rate on transactions is 20%, the same as for standard assets. Under the new law, the tax would be 13% for Russian companies and 15% for foreign ones. The draft must still be reviewed by the upper house and signed by President Vladimir Putin to become law.

Bitcoin

Robinhood Almost Imploded During the GameStop Meme Stock Chaos (techcrunch.com) 75

An anonymous reader quotes a report from TechCrunch: The House Committee on Financial Services released a report late last week offering a harrowing glimpse inside Robinhood during the frenzy around Gamestop stock early last year. The stock trading and investing app was blindsided by the surge in interest from the first big "meme stock" after Redditors and other retail investors rallied around $GME and sent its price into the stratosphere. For Robinhood, which offers individual investors a relatively frictionless way to dive into the stock market, the saga was simultaneously a massive windfall of new users and brand interest and an existential threat that almost did the company in.

House Financial Services Committee Chairwoman Maxine Waters (D-CA) called for a deep dive into what happened behind closed doors, and the new report, "Game Stopped: How the Meme Stock Market Event Exposed Troubling Business Practices, Inadequate Risk Management, and the Need for Regulatory and Legislative Reform," collects the committee's findings. The report, embedded below, is culled from a number of hearings, 95,000 pages of documents and 50 interviews. "My Committee's investigation into the matter showed we need better market regulation to address the troubling business practices that were uncovered during our investigation," Waters said. "Payment for order flow and gamification make it profitable for a new generation of trading apps to push retail investors to make as many trades as possible, making the markets more volatile than ever."

The committee described Robinhood's business as "troubling," citing its preference for aggressive growth without adequate risk management. The report also found that the majority of financial firms the committee examined don't have any plans in place to prepare for another risky phase of "extreme" market volatility. According to the report: "On the morning of January 28, 2021, Robinhood had approximately $696 million in collateral already on deposit with the NSCC, leaving it with a collateral deficit of approximately $3 billion, which it was required to post to satisfy the NSCC's clearing fund requirement or risk being in violation of the NSCC's rules and potentially losing the ability to clear trades for their customers altogether. [President and Chief Operating Officer for Robinhood's clearing operation] Swartwout confirmed that this amount came as a surprise to Robinhood and explained to Committee staff that they had anticipated and prepared for the $1.4 billion of collateral deposit requirements that represent 'core' charges, but because they did not model for Excess Capital Premium charges, Robinhood therefore did not expect and had not arranged adequate funding for the additional $2.2 billion Excess Capital Premium charge. On the morning of January 28, 2021, Jim Swartwout texted Gretchen Howard at 6:29 a.m. EST, writing 'Huge liquidity issue.'"
"Ultimately, the company secured a waiver for its collateral requirements, paused some trades and averted disaster but there's no guarantee that history won't repeat itself and shake out a different way," concludes the report. "In light of the report, Waters called for 'significant' legislative reforms to prevent another Robinhood-style near-meltdown."

Further reading: FTX Exploring a Deal To Buy Robinhood
Bitcoin

FTX Exploring a Deal To Buy Robinhood (yahoo.com) 13

According to Bloomberg, the cryptocurrency exchange FTX is reportedly considering a deal to acquire digital trading platform Robinhood. From a report: Robinhood has not yet received a formal notice from FTX of any such takeover, the report said, while adding that FTX could ultimately choose not to pursue a purchase. The report of a potential acquisition by FTX comes just over a month after Sam Bankman-Fried, the CEO and founder of FTX, disclosed a 7.6% stake in Robinhood, paying $648 million at the time. As of Monday's close, this position was worth closer to $513 million. In a statement to Yahoo Finance following this report, Bankman-Fried said: "We are excited about Robinhood's business prospects and potential ways we could partner with them, and I have always been impressed by the business that Vlad and his team have built. That being said there are no active M&A conversations with Robinhood."

In recent days, Bankman-Fried's companies -- FTX and Alameda Research -- have offered loans to crypto firms in rough financial straits, with some likening his actions to those of Warren Buffett's during the Financial Crisis. Bankman-Fried's crypto exchange FTX offered crypto lender BlockFi a $250 million line of credit. Meanwhile, the 30-year old billionaire's trading firm, Alameda Research, has given Canadian crypto exchange Voyager a total line of credit in cash and crypto equal to more than $500 million. Similar to what Binance's founder, Changpeng Zhao, told Yahoo Finance, Bankman-Fried's actions could be interpreted both as a profit-making opportunity and a way to squash contagion in a sector where firms remain deeply intertwined in their financial dealings.

The Almighty Buck

Three Arrows Capital, a Prominent Crypto Hedge Fund, Defaults on a $670 Million Loan (cnbc.com) 45

Prominent crypto hedge fund Three Arrows Capital has defaulted on a loan worth more than $670 million. Digital asset brokerage Voyager Digital issued a notice on Monday morning, stating that the fund failed to repay a loan of $350 million in the U.S. dollar-pegged stablecoin, USDC, and 15,250 bitcoin, worth about $323 million at today's prices. From a report: 3AC's solvency crunch comes after weeks of turmoil in the crypto market, which has erased hundreds of billions of dollars in value. Bitcoin and ether are both trading slightly lower in the last 24 hours, though well off their all-time highs. Meanwhile, the overall crypto market cap sits at about $950 billion, down from around $3 trillion at its peak in Nov. 2021. Voyager said it intends to pursue recovery from 3AC (Three Arrows Capital). In the interim, the broker emphasized that the platform continues to operate and fulfill customer orders and withdrawals. That assurance is likely an attempt to contain fear of contagion through the wider crypto ecosystem. "We are working diligently and expeditiously to strengthen our balance sheet and pursuing options so we can continue to meet customer liquidity demands," said Voyager CEO Stephen Ehrlich.
Bitcoin

European Crypto Exchange Bitpanda Cuts Staff By Hundreds (coindesk.com) 43

Austria-based crypto trading platform Bitpanda is slashing its headcount to ensure sustainability, the company said in a Friday blog post. CoinDesk reports: Bitpanda's founders said the firm needs to let employees go as it scales down due to market conditions. The company said it is aiming for a target headcount of 730. It has just over 1,000 employees, according to LinkedIn.

"We reached a point where more people joining didn't make us more effective, but created coordination overheads instead, particularly in this new market reality," Bitpanda wrote. "Looking back now, we realize that our hiring speed was not sustainable. That was a mistake." In addition, recent offers will be retracted, and employees have been notified.

Bitcoin

Goldman Sachs Raising Funds to Buy Celsius Assets (coindesk.com) 24

Goldman Sachs is looking to raise $2 billion from investors to buy up distressed assets from troubled crypto lender Celsius, according to two people familiar with the matter. CoinDesk reports: The proposed deal would allow investors to buy up Celsius' assets at potentially big discounts in the event of a bankruptcy filing, the people said. Goldman Sachs appears to be gauging interest and soliciting commitments from Web3 crypto funds, funds specializing in distressed assets and traditional financial institutions with ample cash on hand, according to a person familiar with the situation. The assets, most likely cryptocurrencies having to be sold on the cheap, would then likely be managed by participants in the fundraising push. Celsius has tapped restructuring advisory firm Alvarez & Marsal, the Wall Street Journal reported Friday afternoon. Earlier this month, Celsius abruptly paused withdrawals, swaps, and transfers between accounts, citing "extreme market conditions." The disclosure sent bitcoin's price below $20,000 and prompted the firm's token to take a 60% tumble.

As of Monday, the company said it's still working on "stabilizing [their] liquidity and operations."
Bitcoin

Senator Posts Cryptocurrency Bill On GitHub, Chaos Ensues (theverge.com) 41

On Wednesday, Sen. Cynthia Lummis (R-WY) posted her upcoming cryptocurrency regulation bill on GitHub. What she got in return were eight pull requests and lots of trolling. The Verge reports: As of press time, Github users have commented on 24 issues in the bill and made eight pull requests -- some of which have proposed meaningful additions to the bill. One user asked the senators to "increase the value of proof-of-work cryptocurrencies with a tax on mining." Another thread raised concerns about algorithmic backing of stablecoins.

However, the more common response has been trolling. One flagged issue is titled, "You Know You Can Find Someone To Do Findom Using Google, Right." Another is titled only with the eggplant emoji. In a related thread, a user commented, "Feds are not looking post floppa," accompanied by a picture of a popular Russian caracal who has gained an internet following under the name "Big Floppa." The trolling also extends to commit requests, where one user proposed replacing the bill with the source code of the popular first-person shooter Doom. "This bill would do far more to benefit everyday Americans if its text was replaced with the source code of Doom," reads a comment responding to the request. "Devs should merge asap."

Bitcoin

Solana Launches Web3-Focused Smartphone Saga To Improve Crypto-Mobile Relationship (techcrunch.com) 52

An anonymous reader quotes a report from TechCrunch: The co-founder and CEO of Solana, Anatoly Yakovenko, had a Steve Jobs moment when he stood in front of an auditorium in New York City and announced the launch of Saga, an Android web3-focused smartphone. "This is something that I fundamentally believe the industry needs to do," Yakovenko said. "We didn't see a single crypto feature at the Apple developer conference 13 years after Bitcoin was alive." People will pull out their laptops in the middle of dates so they don't miss an NFT minting opportunity, Yakovenko joked. "So I think it's time for crypto to go mobile," Yakovenko added.

Saga aims to implement digital asset products and services, so users can easily transact with their cryptocurrency through the device, opposed to a laptop browser. In addition to the announcement of Saga, Yakovenko shared the launch of the Solana Mobile Stack, or SMS, which is a web3 layer for Solana built on the phone. SMS will consist of a number of products including a seed vault, a custody solution, a mobile wallet adapter, Solana Pay for Android and its decentralized application (dApp) store. It "provides a new set of libraries for wallets and apps, allowing developers to create rich mobile experiences on Solana," a press release said.

A number of crypto companies including FTX, Phantom and Magic Eden will partner with SMS and there is also a $10 million developer fund for people who build apps on it. "The builders are coming and they are higher quality than before," Raj Gokal, COO at Solana Labs said. "They're ready for the next leg of user growth." The $1,000 device will have 512 GB of storage with a 6.67-inch OLED display and is available for preorder with a $100 deposit and deliveries will occur in Q1 2023, Yakovenko said.

Bitcoin

CoinFLEX Pauses Withdrawals Amid 'Extreme Market Conditions' and Counterparty Uncertainty (coindesk.com) 18

Physical futures crypto exchange CoinFLEX is pausing withdrawals citing "extreme market conditions" along with uncertainty around a certain counterparty, its CEO Mark Lamb said in a blog post Thursday. CoinDesk reports: Lamb said the counterparty is not Three Arrows Capital or "any lending firm." CoinFLEX expects to resume withdrawals "in a better position as soon as possible." Additionally, FLEX Coin trading is being halted for perpetual swaps and spot trading in the short term.
Bitcoin

Coinbase Shares Fall After Rival Binance.US Drops Spot Bitcoin Trading Fees (cnbc.com) 20

Coinbase shares fell almost 10% on Wednesday after rival crypto exchange Binance.US said it's dropping certain trading fees for customers. CNBC reports: Binance.US, the U.S. affiliate of the largest crypto exchange in the world by trading volume, said it will allow users to make spot bitcoin trades for the U.S. dollar and stablecoins tether, USD Coin and Binance USD without paying spot trading fees. Shares of Coinbase were down 9.7%. Robinhood slipped by less than 1%. In a separate report, Barron's Daren Fonda speculates that a price war could be next.

"It's the beginning of the end of Coinbase's high-fee business model," says Mizuho Securities analyst Dan Dolev. "We've said that the fees will eventually go close to zero. And it could be pretty rapid -- it may be months. The market is very competitive and getting tighter."
Bitcoin

CBDCs, Not Crypto, Will Be Cornerstone of Future Monetary System, BIS Says (coindesk.com) 71

Crypto's structural flaws make it an unsuitable basis for a monetary system, according to the Bank for International settlements (BIS). Instead, monetary systems could be built around central bank digital currencies (CBDCs), which are digital representations of central bank money. CoinDesk reports: The BIS, an association of the world's major central banks, dedicates a 42-page chapter in its "2022 Annual Economic Report" to laying out a blueprint for the future of the global monetary system. In that vision, there is room for only some of crypto's underlying technical features, like programmability and tokenization, not for cryptocurrencies themselves. "Our broad conclusion is captured in the motto, "Anything that crypto can do, CBDCs can do better,'" said Hyun Song Shin, an economic adviser and head of research at the BIS, during a press briefing on Monday.

The chapter, which will be published Tuesday ahead of the full report, identifies a number of limitations of crypto, including the lack of a stable nominal anchor. In monetary policy that is a variable -- such as a currency peg -- that can be used to control price levels. Stablecoins, cryptocurrencies pegged to the value of assets like sovereign currencies, are the crypto world's search for such an anchor, Shin said. Stablecoins attempt to "piggyback on the stability of real money issued by central banks."

Shin said the recent crash of terraUSD, a dollar stablecoin with a market capitalization of $18 billion in early May that rapidly lost its peg, illustrated how stablecoins, despite their name, are unstable and don't make good units of account. Unlike other leading stablecoins, such as USDC and USDT, which are reportedly backed by dollar-denominated reserves, terraUSD is an algorithmic stablecoin backed by another cryptocurrency (in this case LUNA) with an algorithm in place to regulate supply and demand of the stablecoin and maintain its peg. "The second important finding is that crypto and stablecoins fail to achieve the full network effects that we normally expect of money," Shin said. Money, Shin said, is the perfect example of a virtuous circle of greater use and greater acceptance. Crypto's decentralized nature, on the other hand, achieves exactly the opposite, namely fragmentation.

Technology

Blockchains Vulnerable To Tampering, a DARPA Analysis Finds (npr.org) 59

A new report finds that blockchain systems might not be working as well as many crypto enthusiasts assume. From a report: The report was commissioned by the Defense Advanced Research Projects Agency, or DARPA, and the work was done by the software security research company Trail of Bits. Trail of Bits CEO Dan Guido says blockchain -- the public ledgers that keep track of cryptocurrencies, which are replicated on computers around the world -- isn't the egalitarian tech its advocates claim. "It's been taken for granted that the blockchain is immutable and decentralized, because the community says so," says Guido. But in practice, he says, these networks have evolved in ways that concentrate power in the hands of certain people or companies, including the large pools of "miners" whose computers earn virtual currency by maintaining the blockchains.

Guido's team calls these potential situations "unintended centralities" -- situations in which someone gains leverage over the decentralized system, creating opportunities for tampering with the record of who owns what. Another example in the report of this kind of concentration is the fact that 60% of Bitcoin traffic is handled by just three internet service providers. "Let's say somebody with great top-down control of the internet in their country starts to interfere with that network," Guido says. By slowing down or stopping legitimate blockchain traffic, an attacker could become the "majority" voice in the consensus of what's written to a blockchain at that moment. "They can rewrite history. They can censor transactions. They can make it so that you can't spend your Bitcoin," says Guido. "It's definitely something people would want to do if they want to 'grief' the network."

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