Category Archives: Bitcoin

Hackers Swipe Bitcoin by Stealing Your Cell Phone Number First – Inc.com

The mobile phone number has become an important part of online security, but for virtual currency investors and entrepreneurs, their cell number is their biggest security weakness.

Hackers are identifying bitcoin and other virtual currency investors and users online, figuring out which telecommunications provider they use, and convincing a cell provider customer service agent to transfer the number to a provider and device under the hacker's control, Forbes has reported. Most virtual currency wallets require users to confirm their identity with their phone number through two-factor authentication, so a hacker can steal a person's bitcoin once they successfully port a number to their own device and change the password to the person's virtual currency.

Bitcoin investors are losing millions in the new scam, the The New York Times reports.

Joby Weeks, a bitcoin entrepreneur, tells the Times that he lost almost a million dollars in virtual currency after hackers swiped his mobile number. Weeks says the digital heist came after he asked his phone company to add extra layers of security.

"Everybody I know in the crypto-currency space has gotten their phone number stolen," Weeks tells the Times.

Virtual currency transactions are irreversible, so victims have no recourse. Bank accounts and investment accounts are not as vulnerable to this attack, the Times reports, because traditional financial institutions are able to reverse malicious transactions if caught in time.

According to data from the Federal Trade Commission, reported by the Times, the number of "phone hijackings" has been rising over the past few years. In January 2013, there were 1,038 reported phone number hijackings reported; by January 2016, there were 2,658.

Coinbase, which is one of the most popular bitcoin wallets, is now telling its users to disconnect their cell numbers from their accounts.

Richard Young, a Verizon spokesman, told the Times these types of identity thefts are still fairly uncommon.

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Hackers Swipe Bitcoin by Stealing Your Cell Phone Number First - Inc.com

MGT Capital Raises $2.4 Million to Expand Bitcoin Mining Operation – CoinDesk

The bitcoin mining andcybersecurity firm MGT Capital has raised $2.4 million in new funding.

The financing for MGT Capital came as a result of a10 percent convertible note issued to a firm calledUAHC Ventures LLC. The funding, according to statements, will be used to expand MGT's bitcoin mining operations in the northwest US, where plentiful hydropower has attracted more than a few miners.

Bitcoin mining is an energy intensive process by which new transactions are added to the blockchain, with new coins being created as a reward for the miner that creates the next transaction block. Profits are earned when the proceeds of mining exceed the cost of electricity and other resources.

The company's leadership team includesJohn McAfee, who founded the eponymous anti-virus softwarefirm in the late 1980s. Intel went on to buy that company in 2010 for $7.6 billion.

In addition to mining bitcoin, MGTmines ethereum and ethereum classic, and is also developingcybersecurity products including a privacy-oriented phone.

In paststatements to the media, McAfee has struck a bullish tone on the prospects of his bitcoin mine, telling Bloomberg in a Mayinterview that "we will definitely be profitable before the end of the year." He also recently pushed back against arguments that the bitcoin market is in bubble territory.

Image Credit: Gage Skidmore/Flickr

Update:This article has been updated to reflect John McAfee's position withinthe MGT Capital leadership team.

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MGT Capital Raises $2.4 Million to Expand Bitcoin Mining Operation - CoinDesk

Bitcoin Prices Are Up Over $100 Already Today – CoinDesk

The average price of bitcoin across global exchanges is trending up, having already climbed over $100 during today's trading.

At press time, bitcoin prices were trading around $4,265, a figure that was up nearly $130 from the day's open of $4,137. The uptick, while slight in comparison to the cryptocurrency's 300% appreciation in 2017, nonetheless comes during a period in which bitcoin has had difficulty building support above $4,000.

Over the last seven days, bitcoin has dipped below $4,000 several times, most recently during August 22's trading session.

Overall, bitcoin appears to be settling into a period of sideways trading after rising 55% over the last month and nearly 90% over the last three months, according to data provider CoinMarketCap. By contrast, this week, bitcoin is up only 2.3%.

As such, it remains to be seen whether the market lull is merely a pause in the rally, or a broader sign of potential fatigue in the nascent asset class.

Suggesting the former is that the increase also coincided with a broader movement of capital into alternative cryptocurrencies, with the value of the entire asset class reaching an all-time high of more than $150 billion earlier today.

$100 billimage via Shutterstock

The leader in blockchain news, CoinDesk is an independent media outlet that strives for the highest journalistic standards and abides by a strict set of editorial policies. Have breaking news or a story tip to send to our journalists? Contact us at [emailprotected].

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Bitcoin Prices Are Up Over $100 Already Today - CoinDesk

Bitcoin and Ether rise, helping take crypto space above $150 billion market cap – MarketWatch

The price of digital currency bitcoin rose on Wednesday, putting it on track for a second straight daily increase, a rally that took total market capitalization of the entire cryptocurrency space above $150 billion.

Ether, the chief rival to bitcoin, which runs on the Ethereum network, also rose on Wednesday, and hit its highest level since June.

A single bitcoin BTCUSD, +1.82% rose 3.1% to $4,264.26. The move brings bitcoins year-to-date rally above 340%. However, it remains about 5% below an all-time intraday high above $4,500 hit on Aug. 17. At current levels, bitcoins market capitalization is about $69.8 billion, making it more than twice as large as Ether, its nearest competitor.

Trading in bitcoin has been volatile lately. At its low of the day on Tuesday, bitcoin was briefly pushed into correction territory, defined as a drop of at least 10% from a recent peak. The moves for bitcoin come as the industry has tackled so-called scaling issues, which are intended to increase transaction sizes in the blockchain network. Traditional bitcoin participants have coalesced around a new protocol known as Segregated Witness, or SegWit., which they believe solves bitcoins scaling issue.

Bitcoin Cash, an offspring created in response to bitcoins transaction-size issue, rose 0.3% to $664.95 on Tuesday, bringing its market cap to nearly $11 billion.

Ether on Wednesday rose 0.4% to $324.07, its highest level since June 23. While it remains below an all-time intraday high above $400 hit on June 12, it has more than doubled from a recent intraday low hit in mid-July. For 2017 overall, it is up more than 4,000%, bringing its market cap to $30.1 billion.

The recent gains in bitcoin, along with the recovery in Ether, brought the total market capitalization of all cryprtocurrencies above $150 billion, according to CoinMarketCap, a pricing and data website. The asset class first broke above $100 billion in early June, meaning the space has risen by half in a little more than two months.

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Bitcoin and Ether rise, helping take crypto space above $150 billion market cap - MarketWatch

The IRS Has Special Software to Find Bitcoin Tax Cheats – Fortune

One benefit of using bitcoin is the digital currency can be anonymousits owners can move money around the world without revealing who they are. Well, in theory at least. In reality, bitcoin is less secret than people think.

The latest reminder of this comes via a report that the Internal Revenue Service is using software to unmask bitcoin users who have failed to report profits. According to a contract unearthed by the Daily Beast, the IRS is paying a company called Chainalysis to help identify the owners of digital "wallets" that users employ to store their bitcoins.

In a letter to the IRS, the co-founder of Chainalysis says the company has information on 25 percent of all bitcoin addresses and that it deploys millions of tags to help track and identify transactions. Here is a screenshot of a paragraph from the letter:

The decision by the IRS to license the software of Chainalysis, which is based in Switzerland with an office in New York, appears to be part of the agency's larger campaign to target digital currency users who have failed to pay tax.

As Fortune reported earlier this year, the IRS claims only 802 people declared a capital gain or loss related to bitcoin in 2015. This is significant since the price of bitcoin soared from around $13 to over $1100 between 2013 and 2015, and hundreds of thousands (like millions) of Americans bought and sold digital currency during this timein other words, there are many people who face bitcoin-related tax trouble, and the IRS is tracking some of them down.

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There are indications, though, the IRS is focusing only on the bigger fish. For instance, in the agency's ongoing legal battle with the popular digital currency exchange, Coinbase, the IRS recently agreed to limit its request for customer records only to accounts with transactions over $20,000.

Nonetheless, the IRS's use of the Chainalysis software is likely to make some bitcoin owners uneasy. Meanwhile, on bitcoin forums, some users have expressed resentment against exchanges like Coinbase, Kraken, and Mt. Gox for allegedly storing wallets in such a way that analytic companies like Chainalysis or BitSeer can identify individual users.

The forum chatter also shows some bitcoin users are thinking of switching to other digital currencies like Monero that are harder to trace.

Finally, the existence of tools like Chainalysis doesn't mean bitcoin users can't be anonymous. Those who wish to keep their identity concealed can do so by maintaining their own wallet and avoiding exchanges that collect customer information.

This is part of Fortunes new initiative, The Ledger, a trusted news source at the intersection of tech and finance.

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The IRS Has Special Software to Find Bitcoin Tax Cheats - Fortune

Here’s Why Bitcoin Rose More than $1000 in Two Months – Futurism

In BriefBitcoin is the world's most popular cryptocurrency, and its value continues to reach new heights. Here are a few reasons this relatively unknown digital coin was able to make the climb from obscurity to the mainstream consciousness.

So far, 2017 has been an eventful year for Bitcoin.

The platform recentlyendured a hard fork that saw it split in two and come out seemingly unscathed. Meanwhile, the cryptocurrency has risen from relative obscurity to become a popular topic of discussion in the mainstream, with everyone from Bloomberg to Forbes covering it regularly. The year isnt even over, and bitcoin has reached numerous milestonesalready, both in terms of its own history and that ofcryptocurrency in general.

Overall, Bitcoin seems to be steadily trending upward, with even greater heights predicted for the platforms future. So, how did a cryptocoin originally associated with the internets darkest corners become a popular contender for the future of financial and other transactions?

Longevity seems to play a factor. After years of trading, the coin has proven itself as here to stay, leading to years of value increases first a steady rise from 2012 through 2016, and then a more dramatic surge that is still ongoing today.

A cryptocurrency researcher who goes by the Twitter handle Jack Sparrow shared a comparative overview of just how fast bitcoins value has risen.

After it was created in 2009, bitcoin needed roughly seven years to reach a $2,000 valuation. However, the crypto saw the same level of increase from $2,000 to $4,000 in a matter of just 85 days.

The numbers are backed up, of course, by confidence fromlarger institutions. Big financial firms like Goldman Sachs, J.P. Morgan, and Fidelity Investments are now invested in the crypto, and nations such asChina, Japan, and, more recently, Australiahave started considering more permanent roles for cryptocurrencies in their respective economies as well.

All of this large-scale support is giving smaller organizations and individual investors confidencein the crypto.

The growing popularity of blockchain enterprise use has also contributed to the successes of Bitcoin and other platforms. As more institutions in the financial industry and beyondlook for ways to utilizethe decentralized and secure digital ledger, the cryptocurrencies that spring from these blockchains also get a boost.

Still, even with Bitcoins seemingly unstoppable successes, experts advise caution. As with any hot item, investing in bitcoin can be risky. Some, such as billionaire entrepreneur Mark Cuban and veteran investor Peter Schiff, even warn that the current cryptocoin craze is simply a bubble. However, while Schiff claims cryptocurrencies will never be money, many others thinkotherwise.

Are we witnessing the beginnings ofa truly cashless future? Only time will tell, and as with any revolution, Bitcoinhas many hurdles to overcome before it can truly transform our society. Right now, though, the crypto is clearly on the rise.

Disclosure: Several members of the Futurism team, including the editors of this piece, are personal investors in a number of cryptocurrency markets. Their personal investment perspectives have no impact on editorial content.

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Here's Why Bitcoin Rose More than $1000 in Two Months - Futurism

Bitcoin rebounds after briefly entering correction territory – MarketWatch

Prices of bitcoin and Bitcoin Cash rebounded on Tuesday, while ethereum remained under pressure, further retreating from recent all-time highs.

A single bitcoin BTCUSD, -0.56% was most recently up 2% on the day at $4,139.87, after dropping to as low as $3,687 in morning trade. At the session lows, the virtual currency had briefly been pushed into correction territory, defined by technical analysts as a 10% or greater fall from a recent peak in an asset.

Bitcoin hit as low as $3,687 earlier on the day, which would represent a 16.7% decline from its mid-August record close above $4,425, according to virtual-currency site Coindesk.com. At current levels it is 8% below that peak.

Even after the stumbles, bitcoins price is about 400% higher since the start of the year, with a market cap at $68.7 billion, according to digital-currency research site Coinmarketcap.com.

Meanwhile, ethereums ether token retreated, coming off a recent record, down 0.5% at $322.33 on the day. It reached a peak in mid-June at about $380 a token.

Some industry experts played down the digital-currency slide.

Naturally some of the prices and exuberance seen in the price are causing traders to take profits, said Charles Hayter, chief executive and founder of CryptoCompare.

The moves for bitcoin come as the industry has tackled so-called scaling issues, which are intended to increase transaction sizes in the blockchain network. Traditional bitcoin participants have coalesced around a new protocol known as Segregated Witness, or SegWit., which solves bitcoins scaling issue.

With SegWit implementation it has perhaps been a question of buy the rumor, sell the news, said Hayter, referring to the industrys recent trading in the wake of upgrades to the bitcoin network.

Meanwhile, bitcoins offspring Bitcoin Cash, which tumbled 14% on Monday, rebounded on Tuesday, trading 5.2% higher on the day at $662.25.

The fallout of bitcoins transaction-size problem was the creation of Bitcoin Cash.

Bitcoin Cash, the nascent alternative to bitcoin, had climbed to a recent peak of $920 on Saturday. At current prices, its market capitalization is above $11 billion, making it the third-most valuable virtual currency, behind cyberunits running on the ethereum blockchain.

Like bitcoin, ethereum went through a fissure last year that resulted in ethereum and ethereum classic, which emerged after ethereums developers engineered a controversial software update that rolled back part of its blockchain in an attempt to recover stolen funds, which led to a segment of investors refusing to adopt the update.

Ethereum and ethereum classic have coexisted the fanaticism of [Bitcoin Cash] as a fringe idea will most likely influence bitcoin, but as with most splits left of field plays, it will not reach mainstream, just like politics, said Hayter. That said, if bitcoin manages to fracture its community through infighting, there could be a chink in its armor.

So-called ethereum classic is worth only a fraction of its updated brethren, with a market value at $1.3 billion, compared with ethereum at nearly $30 billion. Ethereum appreciated nearly 70% since the start of August and is up 3,875% year to date, having started 2017 at about $8.

The total market value of an array of widely followed digital currencies was at $147.49 billion.

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Bitcoin rebounds after briefly entering correction territory - MarketWatch

China’s two biggest bitcoin exchanges helped themselves to $150 million in idle client funds – Quartz

For a long time up until recently, Chinese bitcoin exchanges didnt charge users transaction feesa major revenue source for other exchanges in the crypto market. How did they make a profit? At least part of the mystery has been solved.

Chinas two biggest bitcoin exchanges, Huobi and OKCoin, collectively invested around 1 billion yuan ($150 million) of idle client funds into wealth management productswhich are often high-yielding and riskyfor their own gain, state newswire Xinhua reported on Aug. 17 (link in Chinese), citing an investigation by the Peoples Bank of China. On the same day that the investigation was reported, bitcoin hit an all-time high of $4,500.

Yesterday (Aug. 21) Xinhua also published a rare commentary (link in Chinese) warning against bitcoins recent price surge. New things are developing so fast that regulations must keep pace, the article said, calling on the government to shut down dubious bitcoin exchanges and to never be soft on them.

Chinas central bank, fearing capital flight and money laundering, has tightened its grip on bitcoin trading in recent months. At the start of this year, the Peoples Bank of China launched an investigation into major bitcoin exchanges including Huobi and OKCoin, and issued warnings about possible risks on their platforms. In response, Huobi and OKCoin ended zero-fee trading and margin-trading services, which lets customers borrow yuan or bitcoin from the exchanges to boost their bets. The exchanges also suspended bitcoin withdrawals, and only reactivated them about two months ago. These moves ended Chinas dominance of the global bitcoin market, as measured by trading volume.

The Xinhua report didnt provide more details about the financial products Huobi and OKCoin invested in using those client funds. While bitcoin exchanges in the US and Europe typically hold client funds rather than use them, the same doesnt apply to their Chinese counterparts.

Huobi declined to comment. A representative for OKCoin didnt respond to a request for comment.

Employees of Beijing-based bitcoin exchanges and wallet apps, through which users send and receive bitcoin, told Quartz that their companies are now required to report to the central bank weekly about suspicious trading activities on their platforms. They are also anticipating that authorities will release new rules on bitcoin trading in Chinaa draft is now reportedly in the making. A 2013 central bank document contains some vague rules, such as requiring bitcoin exchanges to implement know your customer procedures, and abide by Chinas anti-money-laundering laws. The 2013 document also banned financial institutions and payment services from bitcoin-related businesses. That means Chinese banks are not allowed to serve as custodians and hold client money for bitcoin exchanges, a practice that is commonplace for Chinese stock brokers.

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China's two biggest bitcoin exchanges helped themselves to $150 million in idle client funds - Quartz

Bitcoin Prices Dip Below $4000 to Hit 7-Day Low – CoinDesk

The price of bitcoin is back below $4,000.

Following a period of record highs, average prices across global exchanges declined at the start of trading on August 22, having already dipped more than $150 already from the day's open. At press time, bitcoin was trading at $3,894, its lowest total observed since April 15, when the price hit a low of $3,892.

However, despite the continued show of strength from the market, some traders indicated a belief that bitcoin's rally which has catapulted the digital asset to 350 percent gains this year might be reaching its peak.

BTC VIX, organizer of the cryptocurrency trading group Whale Club, remarked that he is losing confidence in the rally. In particular, he cited the fact that bitcoin prices have dipped below $4,000 four times since first surpassing the milestone, a sign he thinks the market isn't keen to push the price higher in the short term.

"The bulls are tired," he told CoinDesk.

Elsewhere, market observers predicted that bitcoin might stabilize around the $4,000 mark.

Such a view was put forth by Mike Kayamori, CEO of Japan-based bitcoin exchange Quoine, who saw the dip below $4,000 as a sign of consolidation, if not a cause for alarm.

Like many analysts, he appears to believe bitcoin is likely to trade in range ahead of possible changes to its underlying technology, though these won't come for some time.

"[The market] could go lower, but the next big date will be the Segwit2x in November," he concluded.

Barometer image via Shutterstock

The leader in blockchain news, CoinDesk is an independent media outlet that strives for the highest journalistic standards and abides by a strict set of editorial policies. Have breaking news or a story tip to send to our journalists? Contact us at [emailprotected].

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Bitcoin Prices Dip Below $4000 to Hit 7-Day Low - CoinDesk

Bitcoin Analysts Compete for the Highest Price Forecast – Bloomberg

Even the skeptics cant avoid weighing in onbitcoin.

It seems like everyone is coming up with a price forecast these days, with some of the biggest banks including Goldman Sachs Group Inc. jumping into the action, while speculators to long-time investors are also making their bets.

The consensus is that the biggest cryptocurrency will face some resistance around $4,500 to $4,800 and correct, to then continue rallying. How high? Pantera Capital Managements Paul Veradittakit, Tom Lee at Fundstrat Global Advisors and John Spallanzani at GFI Group Inc. see it going to $6,000 by year-end, while Ronnie Moas at Standpoint Research says it will keep rising to $7,500 in 2018.

Bitcoin has been on a tear this year, more than tripling in value as it crossed the $4,000 mark and touched a record $4,477 last week. Its since retreated about 7 percent from the high as investors took profit and assessed whether the rally had gone too far. Growing adoption and institutional investor interest, agreement on a mechanism to speed up transactions and regulatory steps that will help the asset broaden its reach are some of the reasons that explain the gains.

Were in a very healthy position right now, saidVeradittakit, vice president of Pantera Capital, which has invested in bitcoin since 2014. Theres a lot of interest from traders and mainstream finance on the rise of all these new crytpo currencies, but when they first get exposure into the space, theyll go into bitcoin. It has the most liquidity and biggest brand name.

Veradittakit said bitcoin will hover around current levels and rally further once the underlying technology is upgraded in November, when the block size in the bitcoin blockchain is set to double to two megabytes, increasing transaction speed. Hes also encouraged by reports from the local exchanges Pantera invests in that cross-border transactions are increasing.

Read more about the bitcoin development dispute

But the road ahead might get rocky. Goldman Sachs technical analyst Sheba Jafari wrote in a note to clients Aug. 13 that bitcoin coulderase around 40 percent of its value after reaching $4,827. On a separate note, Goldman Sachs analysts said the space is getting big enough at over $100 billion in market capitalization that it warrants watching.

Spallanzani, chief macro strategist at GFI Group, also predicts a sizeable fall to as low as $3,000 unless it manages to break the $4,500 level it tested last week. But then it should rebound and climb to as high as $10,000 in 2018, he said.

It will have to retrace a bit more before we have enough power to break through, Spallanzani said. He recommends buying bitcoin when its above $3,800 and selling when its below that level.

Not everyone is so bullish. Roy Sebag, who said he first invested in bitcoin in 2011, said he sold most of his 17,000 bitcoin between May and June because he believes the long-term value will be zero.

Its completely devolved from the original promise, said Sebag, founder and chief executive officer of Goldmoney Inc., which oversees about $2 billion of assets. Bitcoin and cryptocurrencies in general are exhibiting a mania, fueled by speculative fervor.

Amid the frenzy, some analysts have steered clear of making price predictions, while still dipping their toes in bitcoin waters.

Read more on how to get exposure to bitcoin without owning it

Tom Price, a Morgan Stanley equity strategist, said bitcoin compares to gold in that both offer similar benefits as a store of value, such as being fungible, durable, portable, divisible and scarce. Still, a lot of time and trust-building will be needed before it becomes clear whether bitcoin will also undermine demand for the metal, he said.

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Cryptocurrencies including bitcoin are still very volatile and thus not particularly safe, but that could change as their value rises and liquidity increases, wroteBank of America Merrill Lynch strategists Martin Mauro, Cheryl Rowan and Matthew Trapp earlier this month. They score well when it comes to diversification, as their correlation to equities, bonds, commodities, currencies or selected measures of risk is near zero, the strategists said.

More longer term, bitcoin will climb to$25,000 by 2022, Fundstrats Lee said, as recent regulatory approval for options trading and settlement implies a significant rise in institutional holdings of bitcoin, while he estimates user accounts are likely to rise 50 percent and usage per account to climb 30 percent.

Moas of Standpoint Research said in an Aug. 14 report that bitcoin could rise to $50,000 by 2027 as he expects cryptocurrency users will grow to as high as 100 million users from 10 million today in the next couple of years.

It looks to me as though we are at the same point in the adoption curve as we were in 1995 with the Internet, Moas wrote. Cryptocurrency is becoming more widely accepted by the day.

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Bitcoin Analysts Compete for the Highest Price Forecast - Bloomberg