Ethereum researcher Justin Drake warned that OpenAI’s recent advances in mathematical reasoning could accelerate threats to cryptocurrency wallet security, potentially shortening the timeline for vulnerabilities in widely used digital signature schemes. On October 7, Drake urged blockchain participants to prepare for a scenario he called “bunker mode,” in which large holders move assets to addresses that have never been used to sign transactions. He recommended that once such addresses are used, any remaining funds be transferred to a new, unused address to minimize exposure. His call followed OpenAI’s October 6 release of a large set of new mathematical results generated by an internal frontier model. The company reported testing the model across thousands of problems, publishing many proofs with Lean formalizations that can be independently verified, and using approximately three hours of ChatGPT Pro compute per result. Drake argued that the speed of AI-driven mathematical discovery should prompt the crypto industry to reassess how long elliptic-curve cryptography — used to secure Bitcoin and Ethereum transactions — will remain safe. He stated that, in the worst case, an effective break of the Elliptic Curve Digital Signature Algorithm (ECDSA) could occur “in months, not years,” though he emphasized this was a speculative worst-case timeline, not a demonstrated capability. OpenAI’s announcement did not describe a practical attack on ECDSA or RSA, and Drake’s projection remains hypothetical. Cryptocurrency systems rely on ECDSA on the secp256k1 curve to verify ownership and authorize transfers. When an account sends a transaction, its public key can be derived from onchain data, potentially allowing private keys to be reconstructed if a sufficiently powerful algorithm becomes available. Addresses that have never signed transactions expose only a hash of the public key, offering a layer of protection. However, once a transaction is broadcast, that hash can be used to recover the full public key. Bitcoin Taproot outputs similarly expose public keys from the outset, though they use Schnorr signatures instead of ECDSA. Drake suggested that major custodians such as Binance, Bitbank, Robinhood, Bitfinex, and Tether could lead efforts to transition to more secure address types and signing methods. He also proposed interim defenses, such as rotating ECDSA keys or combining signatures with hash-based systems like SPHINCS, to buy time while longer-term solutions are developed. Hash-based cryptography, which relies on fewer algebraic structures than elliptic curves, was presented as a more resilient option for future AI-driven attacks. Drake noted that while quantum computing has traditionally been seen as the primary threat to current cryptography, AI might uncover classical algorithms that reduce the difficulty of private key recovery, potentially bypassing the need for quantum hardware. Whether such algorithms exist remains unknown, but Drake argued that the possibility warrants proactive preparation. Europol has separately highlighted the broader risk, stating that quantum and AI-driven advances could eventually undermine cryptographic protections used in crypto wallets, and has urged the industry to begin planning now. The agency emphasized that uncertainty about timing should not delay migration, as system upgrades and coordination efforts can take years. Ethereum is already advancing post-quantum research, including hash-based validator signatures and mechanisms that allow individual accounts to adopt different signature schemes without requiring a full network upgrade. Its second annual post-quantum research retreat is scheduled for October 9 to 12, and Drake plans to speak to institutional participants in London next month about accelerating defensive measures. He cautioned against rushed migrations, noting that poorly managed transfers could introduce new risks, but stressed that the emergence of AI capabilities should prompt a reevaluation of existing security timelines.

Bitcoin slipped below $83,000 on Thursday, falling 1.6% to just under $82,800. The move breached a level that analysts had flagged as a potential trigger for further declines toward $80,000.

The price drop coincided with a rally in oil markets. Brent crude rose 2% to above $102 per barrel after reports that the White House had asked the Pentagon to prepare strike options against Iran. The development added to supply concerns already heightened by a storm disrupting U.S. production and Houthi attacks on Saudi airports that resulted in three fatalities.

Higher oil prices pushed the 10-year U.S. Treasury yield up two basis points to 5.31%, its highest level since 2002. Rising yields and commodity prices weighed on risk assets, including equities and digital currencies. Wall Street indices retreated from recent records, and Asian markets followed with a 1% decline.

Cryptocurrency liquidations amplified the sell-off. CoinGlass reported that approximately $550 million in leveraged crypto positions were liquidated in the past 24 hours, with the majority tied to long bets on price increases. XRP led the declines among major tokens, dropping nearly 4% to $1.42. Dogecoin fell 3% to below 9 cents, and ether slipped 3% to around $2,570. HYPE and SOL each declined by more than 2%, while ZEC edged down less than 1%. BNB and TRX were the only major cryptocurrencies to post gains, each rising marginally.

The $83,000 threshold had been identified by FxPro as a technical inflection point. A sustained break below that level, according to the firm, could accelerate downward momentum toward $80,000. The current dip marks the latest instance in which Bitcoin’s price movement has mirrored broader macroeconomic shifts in energy and bond markets.

Separate coverage from CoinDesk’s ongoing series examines the evolving regulatory environment for stablecoins in the Asia-Pacific region, highlighting how jurisdictions are adapting frameworks to accommodate digital asset integration in formal financial systems.

Polygon Labs has incorporated TRON's $94 billion stablecoin supply into its Open Money Stack, enabling businesses to process cross-border transfers and stablecoin payments through a single integration. Remittance firms, fintech companies and payment providers can now convert bank transfers, debit card transactions or cash into USDT on TRON and settle funds to bank accounts. The service also permits movement of USDT between TRON and supported Ethereum Virtual Machine networks, though it does not relieve payment firms of licensing or regulatory obligations. By linking TRON to Open Money Stack, Polygon aims to let businesses offer digital-dollar services without separately integrating banking access, wallets and other orchestration tools, according to co-founder Sandeep Nailwal. The functionality targets firms seeking to streamline payment flows that traditionally require multiple providers. TRON processes over $94 billion in USDT, with 93% of its $30 trillion stablecoin transfer volume recorded as peer-to-peer in Q2, the highest share among tracked networks. "Customers expect their assets to arrive where they want them regardless of the blockchain they use," TRON founder Justin Sun said. "Connecting TRON to Polygon’s infrastructure will help businesses serve users across different payment environments." Polygon launched Open Money Stack in January following its acquisition of Coinme and Sequence, and its fiat-ramp service operates under money-transmitter licenses covering 48 U.S. states.

Europol released a report on October 7, 2026, highlighting the risks that quantum computing poses to cryptocurrency wallets. The agency noted that while quantum computers capable of breaking current encryption do not yet exist, the public keys of approximately 6.9 million bitcoin addresses have already been exposed on the blockchain. These include early Bitcoin addresses from the Satoshi era and long-dormant wallets whose private keys could eventually be derived if sufficiently powerful quantum machines become available.

According to the European Cybercrime Centre, the primary vulnerability lies not in the blockchain itself but in the cryptographic signatures that control access to funds. A powerful quantum computer could use exposed public keys to compute corresponding private keys and spend the associated assets. Retroactive protection is not possible, prompting debates within the Bitcoin community about whether to freeze funds in vulnerable addresses.

Europol recommended a coordinated, phased transition to post-quantum cryptographic standards. The agency emphasized the need for wallet upgrades, adoption of new signature schemes, and collaboration among developers, miners, exchanges, and users. A 2024 study cited by Europol estimated that migrating all unspent transaction outputs to quantum-resistant formats would require at least 76 days of cumulative block space, potentially extending to 300 days if 25% of each block is reserved for the transition.

New post-quantum signature schemes are significantly larger than current Elliptic Curve Digital Signature Algorithm (ECDSA) signatures, ranging from 10 to 120 times in size. This presents technical and logistical challenges for network-wide upgrades. Bitcoin researchers and institutions have identified 2029 as a critical milestone for establishing credible migration plans.

While quantum computing has the potential to disrupt current cryptographic systems, Europol stated that cryptocurrencies will not collapse due to quantum advances. The immediate concern is the ownership of assets held in exposed wallets, not the integrity of the blockchain ledger. The agency stressed that proactive adaptation, rather than systemic failure, is the most likely outcome if the industry acts in a timely and coordinated manner.

Robinhood disclosed that it has recorded approximately $25 million in bitcoin on its corporate balance sheet, according to a statement made by Johann Kerbrat, senior vice president and general manager of crypto and international at the company, during an interview on The Starting Block broadcast at the Digital Asset Summit Asia conference on October 7, 2026. The figure represents a small fraction of the company's overall market capitalization, which Kerbrat noted sits in the $100 billion range. Robinhood has not confirmed additional purchases of bitcoin or other digital assets beyond this holding. The company, which serves more than 28 million funded customers worldwide, has previously expanded its crypto services through the launch of Robinhood Chain, an Ethereum-compatible layer 2 network focused on tokenized real-world assets and decentralized finance. Since its mainnet launch, the platform has introduced tokenized stock offerings, a stablecoin named USDG, and yield-generating lending products under the Robinhood Earn brand, while integrating with major decentralized finance protocols such as Uniswap and infrastructure providers including Chainlink, Alchemy, and BitGo. Robinhood joins a growing list of publicly traded firms that have added bitcoin to their treasury reserves, a trend that began in 2020 when Strategy (formerly MicroStrategy) began accumulating the cryptocurrency. As of the latest public disclosures, more than 170 companies globally hold bitcoin on their balance sheets, with combined holdings exceeding 1.2 million BTC. These corporate holdings include entities such as Tesla, Block, MARA Holdings, CleanSpark, and Riot Platforms. Robinhood's move underscores its continued investment in cryptocurrency infrastructure, even as it maintains a cautious stance on the scale of future digital asset acquisitions.

The United States transferred approximately $470 million in seized digital assets to wallets associated with Coinbase Prime, according to blockchain analytics firm Arkham Intelligence. The movement, which began on October 7, involved Bitcoin, wrapped Bitcoin and USDT, and was linked to seizures tied to the 2016 Bitfinex hack and to entities connected with the collapsed FTX exchange. The transfers have reignited discussion about the possible sale of government-held cryptocurrency, though officials have not confirmed any intent to liquidate the holdings. Arkham noted that the destination addresses are commonly used by institutional custodians, suggesting the assets may be undergoing administrative processing rather than immediate disposal. The transaction occurs amid ongoing scrutiny of how the federal government manages digital assets acquired through law enforcement actions. In March 2025, former President Donald Trump signed an executive order establishing a Strategic Bitcoin Reserve, directing that Bitcoin held for the reserve not be sold. The order emphasized preservation of the asset as a national reserve asset and expressed concern that prior government sales had resulted in significant financial loss to taxpayers. While the policy prohibits disposal of reserve Bitcoin except under limited circumstances, such as court-ordered transfers or restitution to victims, it permits movement of other seized assets under specific legal conditions. The assets in question originated from the 2016 Bitfinex hack, in which approximately 119,754 Bitcoin were stolen. Over time, authorities have recovered and seized additional funds tied to the case, including around $475 million in assets linked to the perpetrators. Some of these holdings have been subject to forfeiture proceedings related to restitution for victims of fraud and cybercrime. The recent transfer has drawn attention because it involves assets that could fall under different legal categories, depending on their intended use. Arkham reported that hundreds of millions of dollars in government-controlled crypto have moved to Coinbase Prime addresses in recent days, but the final disposition of these assets remains unclear. Whether the funds will be held, converted to fiat currency, or allocated to specific legal obligations has not been publicly disclosed. The development underscores the complexity of managing digital assets within federal forfeiture frameworks and raises questions about transparency in government crypto operations.

Ethereum co-founder Vitalik Buterin endorsed a warning that rapid advances in artificial intelligence could weaken the cryptographic foundations of blockchain systems before quantum computers pose a comparable threat. Buterin’s endorsement followed a proposal from Ethereum researcher Justin Drake urging the industry to prepare for a scenario he called “bunker mode,” in which AI could eventually break the elliptic curve digital signature algorithm (ECDSA) that secures cryptocurrency wallets. Drake recommended that users begin a gradual migration of funds to fresh wallets whose public keys remain undisclosed. “I don’t recommend anyone scramble to move their funds to new wallets today,” Buterin wrote. “But we should take the risks to cryptography from AI-accelerated math seriously.”

Drake’s concerns stemmed from recent releases by OpenAI, which published hundreds of new mathematical discoveries across algebra, theoretical computer science and mathematical logic. The company also demonstrated that a team of 10,000 autonomous AI agents had solved the Navier-Stokes equation — a longstanding challenge in mathematics and physics — in just 88 hours using parallel computation. “Recent days have been humbling for human mathematical intuition. Long-held, unquestioned hypotheses have fallen,” Drake noted, adding that elliptic curves possess structural features that could make them especially susceptible to exploitation by advanced AI systems. “Curves carry rich structure, with room for fancy tricks like Schoof, Frobenius, pairings. (By contrast, hashes are designed to minimize algebraic structure.)”

Buterin expanded the discussion to include lattice-based cryptography, which is widely regarded as resistant to quantum attacks. He cautioned that AI-driven mathematical progress could compromise the concrete security of lattice assumptions within the next two years. “So far most people have been in the mode of thinking ‘elliptic curves broken, hashes safe, lattices safe,’” he wrote. “But there is a good chance that the concrete security of lattices will take serious hits from the next two years of AI math.”

This line of reasoning has influenced Ethereum’s development trajectory toward a “hash-only” architecture, according to Buterin. Haseeb Qureshi, managing partner at Dragonfly, echoed the sentiment, describing Drake’s warning as “a very sober call.” “The risk is not quantum, but just conventional mathematics overturning unproven cryptographic hardness assumptions,” he wrote on X.

To mitigate exposure, both researchers suggested that holders could shift assets to addresses that have not yet revealed their public keys. Drake advocated for a controlled, incremental migration, prioritizing large and sophisticated participants. He also advised moving remaining funds to a new address after each transaction signature. “My personal recommendation is to set in motion a controlled mass migration of assets to fresh addresses,” Drake said, emphasizing the need for careful management to avoid destabilizing market dynamics.

Buterin supported the precaution if implementation is straightforward, noting that unused addresses offer a simple defensive layer. However, he warned that migration efforts carry their own risks. “If it’s not difficult for you, keeping your funds in addresses which have not yet been used to make a transaction is a good idea,” he wrote. He added a personal caveat: “I personally have lost more money in botched migrations than I have lost in all hacks combined.”

Drake reinforced the need for restraint, cautioning that rushed transitions could cause greater harm than benefit. The discussion underscores growing scrutiny of cryptographic resilience in the face of accelerating AI capabilities within mathematical research.

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Sui recorded a peak throughput of 40.6 million transactions per second during a live offchain test that simulated AI agent activity. The demonstration, held at Sui Basecamp in Singapore, involved more than 10,000 tunnels and was designed to stress‑test infrastructure for rapid interactions between autonomous software agents. CertiK acted as an independent auditor, reviewing the test data and preparing a detailed report that was expected in the coming days. The foundation said the result surpassed a 20 million TPS target set for the event and exceeded the 6.1 million TPS recorded in a July test that used the same channel architecture.

The test measured activity that occurred inside programmable channels, with transactions only submitted to the Sui mainnet when a channel was opened or closed. More than 10,000 tunnels were opened on mainnet, while the bulk of interactions remained offchain, allowing participants to execute repeated operations without submitting each one individually to the blockchain. Closed tunnels were cosigned by participants and could be independently verified onchain, according to the foundation’s description.

Sui’s chief product officer, Adeniyi Abiodun of Mysten Labs, led the demonstration and explained that the capacity test was intended to support "millions of AI agents" performing transactions at a pace beyond human capability. He noted that while no market requires 6 million or 40 million transactions per second, agents operate at such speeds. The test built on a September 2025 partnership with Google’s Agentic Payments Protocol, an open‑source standard that enables AI agents to make payments on users’ behalf. Under that collaboration, Sui provides programmable payment infrastructure for autonomous agents, supporting use cases such as paywall access and automated purchases.

The foundation also highlighted its USDsui stablecoin, launched on March 4, which is issued by Bridge, a Stripe subsidiary, through its Open Issuance platform. USDsui is designed for payments, cross‑border transfers, and remittances within the Sui ecosystem, and it supports functions such as lending, trading, and liquidity provision on decentralized finance platforms. The foundation reported that more than $111 billion in stablecoin transfers occurred on Sui during January 2026, reflecting the scale of activity on the network.

For U.S. investors, February coverage documented the launch of staking exchange‑traded funds tied to SUI, with Canary Capital’s SUIS trading on Nasdaq and Grayscale’s GSUI listed on NYSE Arca. Both funds began trading on February 18 and hold SUI tokens directly, with staking rewards incorporated into the funds’ net asset values. Coinbase announced SUI staking for customers in July, offering a one‑token minimum and estimated annual rewards of 1.4% to 3.3%, subject to location restrictions.

The October throughput demonstration was audited by CertiK, which will examine proofs, execution logs, journals, and supporting evidence before publishing its findings. The test underscores Sui’s focus on scaling infrastructure for AI‑driven financial activity while maintaining onchain verification for channel closure.

A recent auction of ten-year Japanese government bonds drew stronger competitive interest than the prior sale, even as the average yield climbed to 3.101%. The Ministry of Finance reported that the yield rose from 2.995% at the September 1 auction, an increase of 10.6 basis points. Demand intensified, with competitive coverage climbing from roughly 3.29 times to 3.76 times, and the yield tail narrowing from 1.6 to 0.2 basis points. This tighter spread suggests growing appetite for higher yields among investors.

The latest figures follow two consecutive weeks of foreign debt divestment by Japanese institutions. According to the Ministry’s October 1 flow report, net long-term foreign debt sales totaled ¥1.9049 trillion between September 13 and 19, and ¥684.5 billion between September 20 and 26, amounting to ¥2.5894 trillion in net sales over the period. The data tracks major domestic financial institutions’ holdings of foreign securities, categorized by issuer residence, though it does not specify U.S. Treasury transactions, currency conversions, reinvestment into domestic bonds, or cryptocurrency activity.

Analysts note that a sustained preference for domestic bonds over overseas assets could tighten global financing conditions and reduce the pool of capital available for risk-oriented investments. A working paper from the Bank for International Settlements, covering 2017 through mid-2024, found that global funding conditions and speculative motives significantly influence cross-border flows of Bitcoin and Ether. The study also distinguishes institutional portfolio adjustments from leveraged yen carry trades, which rely on borrowing in yen.

The researchers caution that while ten-year auction yields reflect longer-term pricing, they do not capture short-term borrowing costs associated with carry trades. In a separate August 2024 analysis, the BIS highlighted how recent deleveraging and rising margin requirements amplified market turbulence, though no current unwind has been confirmed. The next indicator to watch is whether foreign debt selling persists alongside signs of broader funding stress, a pattern that could signal shifting dynamics across financial markets.

Shares of Armada Acquisition Corp. II, the SPAC poised to take Evernorth public, fell 50.3% to $19.20 on Tuesday, according to data from StockAnalysis. The decline followed a steep drop from a high of $53 reached on Oct. 2 after a speculative surge earlier in October. The company had originally planned to list on Nasdaq on Oct. 8, but Evernorth announced an administrative delay on Oct. 6, pushing the merger completion to around Oct. 9 and the Nasdaq debut to approximately Oct. 12. Evernorth stated the delay would not affect the merger's closing.

The stock's volatility intensified after shareholders approved the transaction on Sept. 30. It surged to $53 on Oct. 2, peaked at $39.42 the next day, and closed at $38.65 on Oct. 5 before collapsing to $19.20 on Tuesday. Despite the drop, the shares remained about 81% above their Sept. 28 close, reflecting early investor enthusiasm.

Armada reported 23 million shares subject to redemption as of June 30, supported by $241.2 million in its trust account, or roughly $10.49 per share, per its SEC filing. Evernorth later indicated only about $48 million of that trust would remain for the combined entity, suggesting redemptions near 80%. The exact redemption count has not yet been disclosed, so the remaining public float is still an estimate.

Heavy redemption activity can limit available shares, amplifying price swings when demand surges and then reverses. XRPN's movements thus reflect demand for a SPAC nearing completion rather than the long-term value of the merged company. Evernorth aims to become the largest publicly traded firm focused on an XRP treasury, holding approximately 473 million XRP and raising about $300 million in gross proceeds, including $225 million from private placements and $48 million from Armada's trust. Backers include Ripple, SBI Group, Arrington Capital, Pantera Capital, Kraken, and GSR.

CEO Asheesh Birla described the vehicle as more than a shell around XRP, planning to grow XRP exposure per share over time. The merger will also introduce additional equity sources, such as warrants, which may affect the final share structure. Final redemption figures and cash contributions from the trust will be critical for investors assessing the company's true value post-merger.

Representative French Hill, who leads the House Financial Services Committee, said Wednesday that recent moves by U.S. financial regulators to address digital assets fall short of the stability offered by pending congressional legislation. In a Fox Business interview, the Arkansas Republican noted that the Securities and Exchange Commission and the Commodity Futures Trading Commission had each proposed new rulemaking to oversee crypto markets after the Senate failed to pass the Digital Asset Market Clarity Act last month. Hill described those agency actions as “falling short” of a legislative solution, adding that a permanent law is needed to keep the United States at the forefront of blockchain technology.

Hill’s remarks followed announcements by SEC Chair Paul Atkins and CFTC Chair Michael Selig that they would advance crypto regulation under directives from President Donald Trump. The lawmaker also highlighted that only 22 days remain in the current congressional session before the lame‑duck period ends, a window that could shape whether the CLARITY bill gains traction after the November elections. Lawmakers who lose their races will not return to consider the measure, while victorious candidates may be influenced by the election outcomes.

At present, seven senior positions across the two agencies are vacant. Commissioner Hester Peirce resigned from the SEC last week, leaving Chair Atkins and Mark Uyeda as the only remaining commissioners. Selig remains the sole commissioner at the CFTC. Separate reporting indicated that capital is shifting from artificial‑intelligence projects back toward crypto, according to analyst Raoul Pal.

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Kalshi's 15-minute gold contracts generated nearly double the estimated trading fees of comparable Ether contracts during September, just weeks after their August launch. According to data from Predict Charts, the gold contracts produced about $5 million in estimated fees for the month, while Ether contracts earned roughly $2.6 million. Bitcoin remained the platform's largest market, with estimated fees of $60.4 million.

The surge in short-duration gold markets coincides with broader expansion of Kalshi's commodities business. The company reported in September that commodities trading volume had reached $400 million within seven months, more than four times the volume recorded by its crypto markets at the same stage. Kalshi noted that "crypto markets demonstrated the potential for new categories on Kalshi to scale from tens of millions to billions in monthly volume."

Short-duration markets now dominate non-sport fee generation. An InGame analysis covering the week through October 5 found that 15-minute crypto, commodity and financial contracts produced $20.4 million in fees, representing 80% of the platform's non-sport fees during that period. The analysis also indicated that short-duration markets accounted for 13% of Kalshi's trading volume but 20% of its fees. Journalist Daniel O'Boyle explained that fee calculations favor contracts priced near 50/50 odds, resulting in higher fee shares for such contracts.

Kalshi's short-duration contracts have experienced rapid growth. After launching in December, 15-minute Bitcoin markets became the company's largest market series outside of parlays by July. Ether's 15-minute contracts expanded from 6.1 million contracts in January to 233 million by July 2026, and further to 318 million contracts in September. However, gold contracts overtook Ether in September, with 542 million contracts traded that month.

The company's funding outlook also attracted attention. Reuters reported that Kalshi was in advanced talks to raise new capital at a $40 billion valuation.

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