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Former Northland man sentenced for ‘cryptojacking’ scheme

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Former Northland man sentenced for ‘cryptojacking’ scheme

ST. PAUL — A former Northland resident will repay more than $45,000 to his former employer for misusing their computer systems to mine cryptocurrency for personal gain.

Joshua Paul Armbrust, 45, was sentenced Tuesday by U.S. District Judge Jerry Blackwell to three years of probation following his

April guilty plea to a felony count of computer fraud.

Armbrust, according to court documents, continued to use the resources of Digital River, a Minnetonka-based global e-commerce and payment processing company, for more than a year after he resigned in February 2020.

Through the scheme known as “cryptojacking,” he took advantage of the now-defunct company’s computing power to obtain and liquidate $5,895 worth of Ethereum — while forcing Digital River to absorb $45,270 worth of web service fees.

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“The defendant’s conduct strikes at the core of digital trust and security in the modern economy,” Assistant U.S. Attorney Bradley Endicott told the court. “Companies rely on former employees to act ethically, even after separation, and to respect corporate systems and data.

“Unauthorized access to corporate cloud infrastructure not only creates financial harm, as in this case, but also exposes sensitive systems to potential compromise and opens the door to more severe cyber threats.”

Armbrust was

living in Orr when he was indicted by a federal grand jury last November.

Records indicate he has since relocated to St. Paul and is working for an insurance company.

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Endicott said the scheme came to light only because Digital River, which went out of business in January, conducted an internal investigation and discovered the unauthorized activity, which was then traced back to Armbrust’s IP address.

Defense attorney William Mauzy told the court Armbrust had been given a code to access Amazon Web Services, which hosted programs that Digital River was using to mine cryptocurrency.

After leaving the job, the defendant used that same code to build a program to generate cryptocurrency for himself — leveraging the services between 6 p.m. and 7 a.m. daily, and then transferring the Ethereum into a digital wallet he controlled.

Endicott said it was “not a momentary lapse in judgment” but a “calculated and covert misuse of enterprise-level computing resources for private enrichment.” It “resulted in real monetary losses, investigative costs and operational disruption to a private company.”

“The defendant is clearly a capable and technically skilled individual,” the prosecutor said. “But instead of using those talents for constructive and lawful purposes, he chose to exploit his former employer for personal gain. It is disappointing that someone with this ability used his skills to steal.”

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Mauzy, though, noted the scheme occurred “during a time of extreme financial need and considerable emotional distress,” as Armbrust was caring for his mother, who was in deteriorating health and has since died.

The attorney said the evidence clearly shows his client was not a “malicious hacker” who set out to disable his former employer’s computer systems. He made no efforts to cover his tracks and has accepted responsibility for the financial losses.

“Armbrust’s conduct, while criminal, was an act of desperation and despair,” Mauzy wrote, “not a crime of greed.”

The probationary term was expected, as both sides jointly recommended it under the plea agreement. Armbrust has no prior criminal history.

The FBI handled the investigation.

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Tom Olsen covers crime and courts and the 8th Congressional District for the Duluth News Tribune since 2013. He is a graduate of the University of Minnesota Duluth and a lifelong resident of the city. Readers can contact Olsen at 218-723-5333 or tolsen@duluthnews.com.

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The October Flush Is Over: Grayscale Says Deleveraging No Longer Pressuring Crypto Valuations

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The October Flush Is Over: Grayscale Says Deleveraging No Longer Pressuring Crypto Valuations
Crypto prices are shedding October’s leverage overhang, with Grayscale seeing derivatives stability, easing supply pressure, and strengthening fundamentals that leave the market positioned for upside as regulatory and institutional forces take hold.
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Report Shows Massive Increase in Iranian Bitcoin Adoption Amid Nationwide Unrest

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Report Shows Massive Increase in Iranian Bitcoin Adoption Amid Nationwide Unrest

A new report from blockchain analytics firm Chainalysis indicates there has been a massive increase in Bitcoin adoption in Iran over the past month, as the country deals with nationwide unrest and protests. The report specifically looks at the increase in withdrawals from crypto exchanges to unknown Bitcoin addresses, which indicates the local population is avoiding centralized financial infrastructure in the country in favor of the decentralized, peer-to-peer digital cash system.

In terms of specifics, the report shows a 262% increase in the amount of withdrawals valued at more than $10,000 into what are thought to be self-custodial bitcoin wallets since the nationwide protests began. According to the report, reasons for the increased interest in self-custodial bitcoin include the collapse in value in the Iranian rial and the potential increased need for citizens to operate outside of government-controlled financial channels.

The report also indicates spikes in Iranian crypto activity were seen during other major domestic and geopolitical events such as the Kerman bombings in January 2024, Iran’s missile strikes against Israel in October 2024, and the 12-day war. Nobitex, which is by far Iran’s largest and most popular exchange, was also hacked for $90 million during the 12-day war.

“This pattern of increased BTC withdrawals during times of heightened instability reflects a global trend we’ve observed in other regions experiencing war, economic turmoil, or government crackdowns,” says the report.

To Chainalysis’s point, this is not the first time a sharp increase in Bitcoin adoption has been noticed in a country dealing with some sort of crisis. In the past, Chainalysis has issued reports involving increased adoption in Ukraine amid war with Russia, Argentina and Venezuela’s respective currency devaluations, and more.

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More recently, countries like Venezuela and Russia have used bitcoin and stablecoins like Tether’s USDT to avoid economic sanctions. According to another recent report from Chainalysis, this sort of sanctions avoidance was behind crypto’s record year of $154 billion worth of illicit financial use.

Unrest has persisted in Iran since late December, as protesters are fed up with the devaluation of the Iranian rial and other economic hardships. These grievances are compounded by longer-term issues such as corruption, repression, and general government mismanagement. In this way, the use of Bitcoin itself can also be seen as a form of protest where people are simply opting out of the traditional financial system.

Ironically, the Iranian regime has also been found to have used crypto for avoiding sanctions and laundering funds. In fact, the same Chainalysis report just released also indicates the Islamic Revolutionary Guard Corps (IRGC) accounts for roughly half of all crypto activity taking place in Iran, which is estimated at $7.78 billion. A recent report from TRM Labs also indicated two crypto exchanges in the United Kingdom were effectively fronts for the Iranian regime, and another past report from Elliptic shows Iran has been involved in bitcoin mining for purposes of monetizing their energy resources.

This situation illustrates the conundrum for authoritarian regimes around the world when it comes to Bitcoin, as the features that make it useful for the regime to avoid restrictions in the US-controlled global banking system also enable it to be used for the local population to gain greater financial freedom.

Bitcoin is not the only technology that has proven helpful for Iranians during the protests, as the existence of Starlink is one of the only reasons information has been able to get out of the country amid government-imposed internet blackouts. While mesh-networking based Bitchat has seen increased adoption in other countries dealing with turmoil recently, a forked version of the app called Noghteha has gained notoriety in Iran. Although, there has been controversy with Noghteha due to its closed source aspects and collection of donations.

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Analyst Calls Silver Generational Bottom, Sees Long-Term Bull Market Ahead

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Analyst Calls Silver Generational Bottom, Sees Long-Term Bull Market Ahead
Silver prices surged sharply, reigniting bullish forecasts, generational-bottom calls, and debate over how far the rally can run as investors weigh upside potential against timing profits in an emerging long-term commodities cycle.
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