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The IRS warns cryptocurrency holders that scammers are mailing fake letters to steal assets or data

According to Bloomberg, the Internal Revenue Service (IRS) has warned cryptocurrency holders that scammers are contacting some taxpayers by mailing fake letters in an attempt to steal their digital assets or personal data. The IRS stated that these letters may ask taxpayers to register for a so-called "Digital Asset Compliance Portal," which does not exist. The IRS also reminds users not to scan suspicious QR codes and not to answer or cooperate with calls requesting payment.While phishing and digital scams are not new in the cryptocurrency industry, sending fake IRS notices through physical mail seems to be a new scam tactic. Since the IRS has indeed sent letters related to digital assets to taxpayers in the past, and last year saw a surge in cryptocurrency tax filing notifications, many taxpayers are confused, which may lead scammers to exploit this familiarity for disguise. As the U.S. tax system requires taxpayers to disclose cryptocurrency activities on their tax returns, communication between the IRS and cryptocurrency holders has become more common. This also makes counterfeit tax notices more misleading. For cryptocurrency users, encountering "IRS letters" involving portal registration, QR code scanning, wallet connections, or payment requests should be treated with caution, and verification should be done through official channels.

hot_img The Korea Exchange examines the technical feasibility of temporarily banning short selling and reducing price limits

According to the Korea Herald, the Korea Exchange conducted an internal review on July 29 regarding the technical feasibility and system requirements for a temporary ban on short selling and narrowing the price limit (currently at 30%) to address the recent severe fluctuations in the stock market. Sources familiar with the matter stated that "only technical feasibility was confirmed," and it was not a prerequisite for implementation, but rather a screening process during the review of available emergency measures.Recently, the South Korean stock market has continued to plummet, causing increasing damage to individual investors. During a meeting of the National Assembly's Administrative Committee, several lawmakers urged authorities to consider a temporary ban on short selling and to restart the Securities Market Stabilization Fund. A national petition to suspend short selling garnered over 10,000 signatures within two days of being made public. However, the ban on short selling conflicts with South Korea's goal of being included in the MSCI developed market index; a previous 17-month short selling ban from November 2023 to March 2025 had led to MSCI downgrading South Korea's market accessibility rating. The exchange's officials stated that they have not received any related requests from the government and have not formally discussed a short selling ban.

Thailand's SEC accuses Bitkub executives of concealing a $50 million hacking loss and has filed a criminal complaint

The Securities and Exchange Commission (SEC) of Thailand has filed a criminal complaint against the cryptocurrency exchange Bitkub Online and two former directors, Sakolkorn Sakavee and Thaweesap Rawan, accusing them of submitting false financial reports between May and October 2021. The case has been handed over to the Economic Crime Suppression Division (ECD) of Thailand for investigation, and the prosecution will decide whether to formally charge them.The SEC stated that Bitkub suffered a cyber attack in May 2021, resulting in the theft of 16 types of digital assets, with losses exceeding $50 million. Regulatory investigations revealed that Bitkub did not reflect the relevant losses in its daily net capital report Form DA 1 from May 10 to October 30, 2021. The SEC alleged that the relevant executives made false statements in the company's official documents, leading regulators to believe that customer assets were intact and that the company had not suffered financial losses. Bitkub subsequently completed the acquisition of alternative assets in late October 2021, but the SEC believes that the reports during this period constituted false statements.In a statement on July 23, Bitkub asserted that existing customer holdings are secure and accounts are complete. Bitkub stated that its co-founders purchased alternative assets in the same quantity and currency to cover the losses and claimed that the cyber theft incident was reported to law enforcement on May 10, 2021.

1inch launches the shared liquidity protocol Aqua, enabling a single fund to support multiple DeFi liquidity positions

According to official news, the decentralized exchange aggregator 1inch has officially launched the shared liquidity protocol Aqua for all users. Aqua allows users to support multiple liquidity positions simultaneously with just a token balance, without the need to deposit assets into a liquidity pool. The assets remain in the user's wallet, and only when a transaction is actually executed does the protocol call the corresponding tokens from the wallet through a single atomic transaction to complete the settlement, returning the received tokens and fees to the wallet.1inch stated that this new model, known as "shared liquidity," is expected to address current issues in DeFi liquidity, such as long-term idle liquidity, low capital utilization, and asset custody risks. The protocol was opened to developers last November and is now officially launched for all users, supporting 13 EVM-compatible chains including Ethereum, Arbitrum, Base, Robinhood Chain, and BNB Chain.1inch indicated that there are several structural issues with current DeFi liquidity. Although many protocols have a high total value locked (TVL), a large amount of liquidity remains in inactive price ranges for extended periods, failing to earn trading fee revenue while also bearing market volatility risks. Additionally, liquidity providers (LPs) typically need to split limited funds across different protocols, trading pairs, and price ranges, leading to decreased capital utilization. Furthermore, traditional models require users to deposit assets into liquidity pools, which not only loses other uses of the assets but also means relinquishing asset custody rights and facing risks such as JIT (Just-In-Time) liquidity bots seizing fees. Aqua enhances capital efficiency by registering wallet balances as a shared liquidity source, allowing the same asset to support multiple liquidity positions without transferring asset ownership; when the wallet balance is insufficient to cover a transaction, the protocol will not execute that transaction, thus keeping the user's actual risk always limited by the wallet holdings.

The Bitcoin BIP-110 mandatory signaling window will open in less than two weeks, with a current support rate of about 2.64%

The Bitcoin BIP-110 mandatory signaling window will open at block 961632, expected around August 9, 2026. As of the on-chain height of 959842, there are about 1790 blocks remaining until that block, and the support rate for BIP-110 signaling is approximately 2.64%.BIP-110's formal name is Reduced Data Temporary Softfork, which proposes to limit the size of certain data fields in Bitcoin transactions, mainly targeting Ordinals type inscriptions, large OP_RETURN payloads, and similar high data volume uses. If activated, the restrictions will take effect at block 965664 and will automatically expire after 52416 blocks, approximately one year later.Current signaling support mainly comes from Ocean, independent miners, and small operators, while major mining pools such as Foundry, Antpool, ViaBTC, and F2pool have not yet shifted to support it. Foundry has requested clients to vote based on average hash power; only if "support" votes exceed 51% of the participating weighted hash power will the pool switch all blocks to support signaling. If the current signaling level persists until block 961632, nodes executing BIP-110 will reject blocks that do not emit version bit 4 signals and will follow the minority of blocks that do emit signals. Non-upgraded nodes will continue to accept both signaling and non-signaling blocks and will follow the chain with the highest accumulated proof of work.
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