Deltec is a well-known bank in the cryptocurrency world, mostly for its ties to Tether and to FTX. In July 2023, US authorities seized tens of millions from Deltec accounts in connection to a cryptocurrency money laundering investigation. It's not clear if that was the same investigation.
Crypto scam money launderers charged for laundering more than $73 million through Deltec
"Crypto King" Aiden Pleterski arrested
Investigators for the bankruptcy proceedings found that Pleterski had invested less than 2% of customer funds. Around $16 million instead went to personal expenses, including luxury cars, a $45,000-a-month lakefront mansion, private jets, and vacations.
Even after being sued, filing for bankruptcy, and being kidnapped and beaten by angry investors, Pleterski flaunted his supposed wealth online. Much to the indignation of the creditors in his bankruptcy, he has continued to regularly livestream himself gambling for hours, spending $150,000 on Legos, and driving luxury cars.
Pleterski was released the same day he was arrested, thanks to a CA$100,000 (~US$75,000) surety bond posted by his parents.
Pump.fun suffers $2 million loss to former employee who claims he wanted to "kill" the project for "inadvertently hurt[ing] people"
A former employee — whose real identity is known — brazenly took credit for the theft on Twitter. They wrote: "everybody be cool, this is a r o b b e r y. ... I'm about to change the course of history. n then rot in jail. am I sane? nah. am I well? v much not. do I want for anything? my mom raised from the dead n barring that: life without parole."
In a Twitter Spaces chat, the attacker stated that he had worked for the company briefly, and that he had grievances against its management. "I just kind of wanted to kill Pump.fun because it's something to do... It's inadvertently hurt people for a long time," he said.
Pump.fun paused trading shortly after the attack, and stated that they were "cooperating with relevant parties, including law enforcement, to minimize the damage." The attacker responded to the post: "Neener neener neener".
Brothers indicted for $25 million MEV bot exploit
According to the Justice Department, the Peraire-Buenos exploited a flaw in popular MEV software called "MEV-boost", which is used by most Ethereum validators. By creating their own validators and "bait transactions", they were able to trick MEV bots into proposing transactions involving illiquid cryptocurrencies, which the brothers then frontran. They were able to create false signatures that tricked a MEV-boost relay into releasing information about upcoming blocks that they were able to tamper with.
The brothers were charged with conspiracy to commit wire fraud, wire fraud, and conspiracy to commit money laundering, and face up to 20 years in prison for each charge.
The Justice Department is describing the case as a "first-of-its-kind manipulation of the Ethereum blockchain". The case is an interesting one, as some believe the practice of MEV itself exploits Ethereum users. Others believe anything you can do with code should be allowed — "code is law". However, by signing false transactions and tricking the relay into releasing private information, the brothers' actions do seem to go beyond simply making profits in a "code is law" Wild West, and into the realm of actual fraud.
- "Two Brothers Arrested for Attacking Ethereum Blockchain and Stealing $25M in Cryptocurrency", press release by the U.S. Department of Justice [archive]
$2 million stolen from ALEX's XLink bridge by bumbling exploiter
The attacker was successfully able to transfer around 13.8 million STX (~$2 million) on the Stack BTC layer-2 chain. However, their attempts to steal assets notionally worth around $4.3 million from the project's BNB Chain implementation failed when they upgraded the project contract to a malicious version, but failed to prevent other people from calling the withdraw function. The attacker's first transactions to withdraw the funds themself failed, and an apparent whitehat hacker was able to step in and complete the withdrawal ahead of the exploiter. They later negotiated a deal for the funds' return, after offering a 10% "bounty".
The exploiter had also tried, and failed, to steal assets notionally worth around $5 million on the Ethereum blockchain, but failed to do so. ALEX Lab later announced they were able to recover or secure around $4.5 million of those assets.
Tornado Cash developer sentenced to more than five years imprisonment in the Netherlands
The case is a concerning one, as sanctioning software developers for how the code they write is used — particularly when it comes to software intended to protect privacy — has frightening implications. Although there is some precedent in the United States that "code is speech", and merely writing and publishing code is protected by the First Amendment, that obviously does not apply to the Netherlands. A collaborator to Pertsev, Roman Storm, is set to be tried on charges of money laundering and sanctions violations in the United States in September, and that case is likely to grapple with this exact issue.
Sonne Finance hacked for at least $20 million
After being alerted to the theft by several security companies, Sonne announced they had paused the contract on the Optimism Ethereum layer-2 chain.
Cypher contributor admits to stealing over $300,000 due to "crippling gambling addiction"
Cypher was hacked for $1 million in August 2023, but was able to recover around $600,000 of the stolen funds, which they promised to distribute to impact users via a redemption fund. However, over a period of months and unbeknownst to the rest of the team, hoak had been dipping into the recovered funds — taking around half of what was in the fund for himself.
After he was accused, hoak fessed up in a public statement where he wrote that his actions were a "culmination of what snowballed into a crippling gambling addiction and probably multiple other psychological factors that went by unchecked for too long." He continued: "I know likely nothing I say or do will make things better - perhaps other than rotting in jail. To address the elephant in the room, the allegations are true, I took the funds and gambled them away. I didn’t run away with it, nor did anyone else."
- "Public statement" by hoak [archive]
- "Cypher Redemption Packages Stolen" report by cobra [archive]
SEC sends Wells notice to Robinhood Crypto
In the past, Robinhood has removed cryptocurrencies from trading after they were alleged to be securities by the SEC, such as Solana (SOL), Cardano (ADA), and Polygon (MATIC) in the wake of the lawsuits against Binance and Coinbase. However, given the SEC's stance that most cryptocurrencies are securities, it seems likely that the SEC believes one or more of the 14 non-bitcoin cryptocurrencies Robinhood offers may also be a security.
Robinhood's Chief Legal Officer issued a statement that "We firmly believe that the assets listed on our platform are not securities and we look forward to engaging with the SEC to make clear just how weak any case against Robinhood Crypto would be."
GNUS.ai exploited for $1.27 million
GNUS.ai (short for "Genius", not a reference to the animal) is one of many AI-related blockchain projects that has sprung out of the recent AI hype. This particular one promises to allow people to "utiliz[e] unused cycles" on various computing devices for computation-intensive AI systems, using cryptocurrency for payments.
Cred executives indicted
Cred had claimed to customers that they engaged in only "collateralized or guaranteed lending", hedged their investments, and "comprehensive insurance", but hid that "virtually all the assets to pay the yield were generated by a single company whose business was to make unsecured micro-loans to Chinese gamers." Furthermore, they did engage in uncollateralized lending, did not hedge their investments, and did not hold insurance as they had claimed.
Around $150 million in customer funds were lost in the collapse based on prices at the time, though those crypto assets would have been priced substantially higher at various times since.
- "Former CEO, CFO, And CCO Of Cred LLC Charged With Alleged Multi-Million-Dollar Cryptocurrency-Related Wire Fraud Conspiracy", U.S. Attorney's Office, Northern District of California [archive]
Wallet loses over $72 million to address poisoning
Address poisoning is a scam tactic that takes advantage of crypto traders' tendencies to copy and paste wallet addresses from their transaction histories, since the addresses are long strings of characters that are not practical to type from memory. By creating a new wallet address with identical start and/or ending character strings to addresses used by the victim, and spamming the victim with transactions from that similar address, scammers are sometimes able to get victims to erroneously copy the spoofed address for future transfers.
That's what appears to have happened in this case, when a victim transferred 1,155 wrapped bitcoin — tokens pegged to the bitcoin price meant for use on the Ethereum blockchain — to the malicious address.
The victim and the exploiter later reached an agreement for the return of most of the funds, with the exploiter keeping $7.2 million as a "bounty".
Pike Finance exploited for $2 million in two separate attacks
The first attack, on April 26, was enabled by a flaw in the security measures related to transfers of the USDC stablecoin. An attacker was able to change the recipient address and amount, ultimately making off with almost $300,000 in the stablecoin. Pike released a postmortem two days later, acknowledging that the bug had been identified by a third-party auditor but had not been rectified by their team.
When the Pike team went to patch the smart contracts to thwart this attack, they introduced new, even worse vulnerabilities. As a result, on April 30, an attacker was able to upgrade the project's smart contracts to malicious ones, then withdraw $1.68 million in ETH, ARB, and OP tokens.
Pike Finance has offered a 20% reward for the return of the funds or information pertaining to the attacker, and has promised "a plan to make users whole". Pike, which launched in early 2024, is backed by Circle and Wormhole.
Roger Ver arrested for $50 million tax fraud
Ver was arrested in Spain, and the United States will seek his extradition.
Besides his tax woes, Ver has also been caught up in accusations by CoinFLEX that he owed the platform around $84 million after failing to meet a margin call. Ver has in turn claimed that CoinFLEX owed him money. CoinFLEX filed for restructuring in August 2022.
- "Early Bitcoin Investor Charged with Tax Fraud", U.S. Department of Justice [archive]
Changpeng Zhao sentenced to four months imprisonment
Prosecutors sought a three year sentence for Zhao, while Zhao requested to serve no time. The judge ultimately decided on a sentence closer to the five-month sentence that was being recommended by the Probation Office.
Rain cryptocurrency exchange hacked for $14.8 million
After zachxbt sounded the alarm on May 13, Rain admitted that they had had a "security incident", but stressed that customer funds were safe, and stated that the Rain Group had "covered any potential losses resulting from this incident".
ZKasino scam suspect arrested by Dutch police
- "More than 11 million euros seized and man arrested in investigation into gambling platform scam", Dutch Fiscal Information and Investigation Service [archive]
Instagram influencer Jay Mazini sentenced to seven years in prison for crypto fraud
Mazini also ran a scam targeting the Muslim community in New York, via a company called Halal Capital. In reality, this was a Ponzi scheme, and payouts to his investors were funded in part by the crypto scam he was also running.
Mazini was arrested in March 2021 on kidnapping charges, after he kidnapped and beat someone who might have witnessed his frauds. He was sentenced to five years in prison for that charge, to which he pled guilty. His new fraud sentence will be served concurrently with the kidnapping sentence.
In addition to seven years in prison, Mazini has been ordered to forfeit $10 million. Restitution has not yet been determined.
- "Instagram Influencer Known as 'Jay Mazini' Sentenced to 84 Months in Prison for Overlapping Fraud Schemes", U.S. Attorney's Office, Eastern District of New York [archive]
- "Serial Scammer and Instagram Influencer Jay Mazini Pleads Guilty", The Daily Beast [archive]
Samourai Wallet operators charged over crypto mixer operations
Rodriguez was arrested in the United States; the United States will seek extradition for Hill, who was arrested in Portugal.
Samourai Wallet advertised itself as "a bitcoin wallet made for the streets", which would "keep your transactions private, your identity masked, and your funds secure". It touted features including "remote self-destruct", and would hide itself from a phone's applications list. As charges were filed in the United States, the wallet's website began displaying a seizure notice that informed visitors of a coordinated law enforcement action by the US Attorney's Office in the Southern District of New York, FBI, IRS, Europol, and Portuguese and Icelandic police. The app was also removed from the Google Play Store.
- "Founders And CEO Of Cryptocurrency Mixing Service Arrested And Charged With Money Laundering And Unlicensed Money Transmitting Offenses", U.S. Attorney's Office, Southern District of New York [archive]
ZKasino rug pulls after raising $33 million
Instead, the project's creators transferred those more than 10,500 ETH ($33 million) to Lido, an Ethereum staking service. As for the "return" of funds, the project team indeed followed through with their promises to return the crypto... except instead of ETH, depositors received the project's native token, ZKAS, which would vest over a period of 15 months. The project announced that they had calculated the ZKAS distribution based on a discounted rate, "as a favour to our users who have bridged to participate in the ecosystem". Gee, thanks!
One investor in the project wrote, "We made a mistake investing in Zkasino early. ... [I]t sounds like a scam, but 95% of crypto consists of such crap. With memecoins pumping every day, people believe this could be the next one."
It seems that ZKasino's creators have links to other crypto scams, including a failed "ZigZagExchange", which raised around $15 million that was allegedly misallocated to work on the ZKasino project. Crypto sleuth zachxbt had also described the team as "proven bad actors" in December, listing multiple instances in which they had avoided making promised payments.
After the rug pull, the project's planned IDO on Ape Terminal and AIT Launchpad were canceled, and MEXC (which had invested in the project's seed round) canceled the token listing.
Hedgey Finance hacked for almost $45 million
The majority of assets were stolen from Hedgey on the Arbitrum layer-2 network, although around $2.1 million of them were stolen from the version deployed on the Ethereum mainnet.
Hedgey Finance confirmed the exploit, and sent an optimistic and congratulatory message on-chain: "Well done for finding it! We're assuming you executed this exploit as a white hat, so we'd like to get in touch with you to discuss next steps." No on-chain response thus far.
- Tweet by Hedgey Finance [archive]
- Hedgey Finance, Rekt [archive]
- On-chain message from Hedgey Finance to the thief
Hong Kong police arrest 72 people, freeze $29 million in connection to JPEX
According to Hong Kong police, they have received more than 2,600 complaints about JPEX, involving HK$1.6 billion (~US$204 million) in assets.
- "Hong Kong JPEX cryptocurrency scandal: 72 arrested, HK$228 million in assets frozen so far", South China Morning Post [archive]
Avi Eisenberg convicted of $110 million Mango Markets heist
Shortly after he was identified as the person behind the attack, Eisenberg tweeted that he "was involved with a team that operated a highly profitable trading strategy last week. I believe all of our actions were legal open market actions". Sadly for him, jurors didn't share this belief.
Eisenberg faces up to 20 years in prison.
Roger Stone endorses $TRUMP memecoin with misleading posts
What he failed to mention is that the tokens in Trump's wallet were airdropped to him, likely without Trump even realizing it. Several of Trump's crypto wallets are publicly known, and people send coins and NFTs to them all the time. Trump has no more endorsed Stone's "MAGA Memecoin" than he has the "HarryPotterTrumpHomerSimpson777Inu" tokens that also sit in his crypto wallet.
Elsewhere, Stone disclosed, "My promotion of MAGAMemecoin is, of course, sponsored." I haven't been able to find where he has disclosed the amount he was paid for these promotions, as he is required to do.
$2 million emptied from Grand Base real world asset platform
The team behind the project claimed that the deployer wallet had been compromised, allowing an attacker to drain the project's liquidity pool. Altogether, 615 ETH (~$2 million) was taken from the project.
Grand Base is a platform where users can trade "gAssets", which are crypto tokens that represent stocks in tech companies including Amazon, Apple, Google, Meta, and Microsoft.
tea.xyz causes open source software spam problems, again
Max Howell, the creator of tea.xyz (and creator of homebrew, though he's no longer involved), seemed apologetic, and promised to make changes to the protocol to stop this spammy behavior.
Now, deprived of that avenue, people are just creating massive waves of empty software packages, with nothing other than a "teafile" with their crypto wallet address for rewards, and submitting them to package managers like NPM and RubyGems.
This spam prompted a blog post from RubyGems, who wrote that they had to devote time to strengthening limits on package publishing and "ensuring [accounts] didn't disrupt the community further."
Security researchers at Phylum also wrote up the protocol's impact on the JavaScript world, which has seen as many as 7x as many packages published on NPM as previous daily averages. "Automated sustained spamming of this volume for months on end is rare and does nothing but cause heavy strain on the ecosystem itself, degrading the performance of the ecosystem for genuine users and straining open source security researchers," they wrote.
$26 million liquidated in surprise Pac Finance smart contract change
Pac Finance has said they are "actively developing a plan with [impacted users] to mitigate the issue."