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Bitcoin Core has added a safeguard against signing transactions that may not protect the payment destination a user approved. The change was merged into Bitcoin Core's master development branch on Sept. 25. Under specific conditions, the flaw could allow a recipient to change while a signature remains valid, without exposing the user's private key. The safeguard blocks affected legacy and SegWit v0 inputs from being signed. Bitcoin Core's published release listings had not identified a fixed production version or confirmed backport as of Oct. 4.

Iran's oil minister, Mohsen Paknejad, quit on Sunday, and state media gave no reason. Paknejad said hours earlier that revenue from previously sold oil was still arriving and would continue. Kpler estimated Iran's offshore crude stocks at 90 million barrels in mid-July and said the remaining supply could be exhausted by mid-October. Iran loaded no oil at its export terminals in September, Fortune reported. However, oil prices have remained relatively stable as substantial oil and fuel flows continue through the Strait of Hormuz.

David Robinson, who oversaw safety reports for 12 of OpenAI's frontier launches, has resigned over concerns about growing AI risks. Robinson argues that OpenAI's trial-and-error culture guarantees failures that grow as its systems become more capable. Robinson urged frontier AI labs to adopt layered redundancy and careful planning similar to nuclear power plants. Robinson's essay says OpenAI stands by its safety practices and considers them careful enough. Director of National Intelligence Jay Clayton will lead a White House task force with 120 days to report on AI risks, opportunities and Washington's responsibility.

The SEC's Treasury clearing overhaul could improve dealer capacity while raising access and collateral costs for some stablecoin issuers. The deadlines are December 31 for eligible outright Treasury transactions and June 30, 2027, for eligible repurchase agreements. Commissioner Mark Uyeda said on September 22 that the SEC did not currently intend to extend the deadlines. Central clearing can reduce dealers' funding needs through netting, but customers' savings depend on clearing costs and providers' terms. Treasury-backed stablecoin issuers need dependable access to dollars for redemptions, and central clearing does not make reserve markets operate around the clock.

The U.S. midterm election on November 3, 2026, will determine control of Congress and shape the crypto industry's outlook next year. As of October 2, 2026, polls suggest Democrats will win control of the House of Representatives, while Senate control remains uncertain. Lawmakers are now examining crypto tax legislation more deeply. Congress will likely hold hearings next year.

Funds run by Shinji Kunibe at Sumitomo Mitsui DS Asset Management sold all their French government bonds amid concerns about France's finances. Japan's Ministry of Finance will release weekly trading data on October 8, but the figures combine all foreign bonds and do not identify France. France's 10-year borrowing rate touched 4.96% last week, the highest since 2002. Bitcoin and Ethereum fell as much as 20% during the 2024 yen shock. However, Bitcoin held above $79,000 when the yen strengthened 3.7% in days in September.

Chainalysis reports that India's domestic crypto exchanges receive just 0.7% of exchange value, down from around 7%. Chainalysis attributes $88.4 billion in centralized-exchange inflows to India-based users from July 2025 through June 2026. Chainalysis reports that Brazil-based exchanges receive 12.5% of inflows, up from 1.5%, although the share observations lack precise dates and confirmed matching samples. India's 1% withholding can reduce immediately available trading proceeds, but its contribution to the domestic exchange share decline remains unmeasured. CoinSwitch co-founder Ashish Singhal said tax friction helps explain offshore use because foreign venues may not make the deduction.

Drift Protocol opened DFX recovery token claims and redemptions on Oct. 1 at an initial payout representing about 1.04% of verified losses. Drift reported about 0.0104 USDT per DFX from a Recovery Pool holding roughly 3.1 million USDT. Redemption permanently burns the redeemed tokens and ends their participation in future deposits. Funding commitments include up to 127.5 million USDT from Tether, but those ceilings do not represent cash already available for redemption. The DFX claim window closes Jan. 1, 2028, at 00:00 UTC.

Dogecoin may rebound toward $0.100 in the near term after forming a bullish flag pattern, despite weakening ETF and futures demand. Spot Dogecoin ETFs added just $3.16 million in inflows in September. Dogecoin futures open interest fell to $1.45 billion from September's high of $1.65 billion. Dogecoin traded at $0.09400 today after reaching $0.1056 in September. A move above the descending channel's upper boundary would confirm the bullish outlook.

President Donald Trump announced a "Super Intelligence Force" on Sunday to coordinate federal efforts to keep the U.S. ahead in artificial intelligence. Director of National Intelligence Jay Clayton is first among the listed leaders and has been widely reported as the administration's new AI czar. The force will report to Trump and White House chief of staff Susie Wiles. Clayton led the SEC when the agency sued Ripple for $1.3 billion in December 2020, alleging unregistered XRP sales. Trump's post did not spell out the force's mandate or timeline.

The Independent Community Bankers of America sued the Office of the Comptroller of the Currency over national trust bank charter approvals for cryptocurrency companies. ICBA filed the lawsuit on October 2, 2026, under the Administrative Procedure Act. The lawsuit challenges a March 2, 2026, final rule and related guidance that ICBA says exceed the OCC's statutory authority. The complaint seeks to overturn the rule and vacate the conditional approval granted to Protego Holdings Corp. The OCC has approved or conditionally approved 21 such charters, with at least 13 going to crypto companies.

zkAPI permits expiry claims that send an expired active note's full recorded deposit to the treasury rather than refunding the user. The Ethereum Foundation announced on Oct. 1 that the private AI-payment system, based on a design coauthored by Davide Crapis and Vitalik Buterin, is running on mainnet. Users can initiate escape withdrawals without server clearance, subject to a 24-hour challenge period and possession of a usable spending state. The vault owner can pause new withdrawals, but already-pending escape finalization does not have that pause restriction. The mainnet configuration specifies a 30-day note lifetime, with expiry rounded upward to a one-day boundary. The announcement describes USDC credits, but the current mainnet manifest identifies the linked vault as holding native ETH. The manifest describes the integration as experimental and not production-audited.

The Independent Community Bankers of America sued the Office of the Comptroller of the Currency on Friday, challenging its authority to charter national trust banks for cryptocurrency firms. The complaint asks a federal court to declare unlawful a March 2, 2026 final rule and the OCC's Interpretive Letter No. 1176. ICBA argues that the charters give crypto firms federal banking credibility without the obligations and protections attached to insured depository institutions. ICBA also seeks to have Protego Holdings' conditional charter vacated.

Bitcoin enters October facing thin liquidity, weaker ETF demand, the Iran war and a Mt. Gox repayment deadline. Coinglass data shows Bitcoin closed higher in 10 of the last 13 Octobers, with a median gain of 12.73%. Analyst Darkfost said the stablecoin supply recovery remains too weak to push Bitcoin toward new highs. Spot Bitcoin ETFs received only $51.25 million across the four sessions from September 28 to October 1, compared with $2.39 billion in the prior week. War developments could move Bitcoin in either direction. The Mt. Gox trustee must finish creditor repayments by October 31 under the current court-approved deadline, potentially giving creditors Bitcoin they may sell.

US spot Bitcoin ETFs recorded $134.4 million in net inflows to start October, according to Decrypt's Bitcoin ETF tracker. The Bureau of Labor Statistics reported that the US economy added 29,000 jobs in September, while unemployment rose to 4.2%. CME FedWatch odds of an October rate hike fell to 14% after Friday's jobs report, from 70% earlier in the week. However, Myriad traders put the probability that Bitcoin will not reach a new all-time high in 2026 at 93%. Year-to-date ETF inflows remain under $1 billion after heavy outflows earlier in the year.

Crypto theft losses rose roughly 462% month over month to $766.49 million in September. Security firm PeckShieldAlert said the industry experienced 55 major hacks. The Bitget incident involved about $387 million, making it one of the largest crypto thefts of the year to date. The Liquid Network theft involved about $320 million, with $285 million returned, and also ranked among the year's largest thefts.

The SEC approved Cboe BZX's listing proposal for VS Trust's 3x Bitcoin ETF and 3x Ether ETF on October 2. The Volatility Shares-sponsored products seek three times their benchmarks' daily performance before fees and expenses. The approval clears an exchange-rule hurdle, but registration effectiveness and a first trading date remain unconfirmed as of October 4. The funds use futures rather than tracking spot prices alone. The products lack the investor protections associated with funds registered under the Investment Company Act of 1940. SEC staff warn that leveraged Bitcoin-futures strategies increase volatility and can expose investors to significant, sudden losses.

The crypto industry's challenge is shifting from building financial products to getting consumers and institutions to use them. WisdomTree is expanding distribution of its tokenized funds. Kevin O'Leary says blockchain networks need to demonstrate real adoption and deals, not just tests. Coinbase is focusing less on technology and more on what customers want to do with their money.

President Donald Trump named Jay Clayton, US director of national intelligence, to lead the new Super Intelligence Force in a Truth Social post on Sunday. Trump said Clayton will report to the president and Chief of Staff Susie Wiles. Trump said the force will coordinate federal government efforts to ensure US leadership in super intelligence. Sources told CNN that Clayton is expected to remain director of national intelligence, according to Friday reports.

The same Federal Reserve rate hike can increase stablecoin issuers' reserve income while raising costs for Bitcoin borrowers, depending on their contracts. The Fed raised its target range by a quarter of a percentage point to between 3.75% and 4% on September 16. Circle's second-quarter filing shows that reserve income supplied 95.2% of revenue in the three months ended June 30, 2026. Existing fixed-rate debt does not automatically become more expensive when Treasury yields rise, but floating-rate loans and refinancing can expose borrowers to higher costs. Onchain lending returns depend on borrowing demand and protocol settings, and higher advertised returns require assessment of additional risks.