A newly disclosed bug in the XRP Ledger's base-layer payment engine could have allowed an attacker to mint trillions of new XRP for almost nothing; researcher Cayden Liao and Veria AI reported it on September 22, and Ripple shipped a closed-source fix in xrpld 3.4.1 on September 25 described only as "integer-arithmetic hardening." Shareholders of the Ripple/Arrington-backed XRP treasury vehicle Evernorth (XRPN) voted on their plan without being told about the flaw, and an official report admitting what the patch actually fixed appeared only on October 9, the day the merger closed.

The flaw meant XRP's fixed supply of 100 billion — the core claim underpinning Evernorth's treasury plan — was technically unenforceable on the network for roughly a decade. The episode also raises governance questions, since XRPN shareholders made redemption and merger decisions inside a window in which Ripple knew about the bug but they did not.

According to the report, the bug likely dated back to 2015 and a single validated transaction using the exploit "could have created spendable XRP far beyond the total supply." The patch shipped without an amendment vote, and no actual exploitation of the vulnerability has been reported.

Google DeepMind published a blog post outlining how it is developing its frontier model Gemini 4 Argon responsibly and safely, detailing the evaluations and mitigations applied ahead of its release.

The post places Gemini 4 Argon at the stage of public pre-release safety documentation, adding it to the small group of frontier models whose deployment preparations are described in the open.

A related post on Google's The Keyword announcing the model says Gemini 4 Argon is designed to sustain deep reasoning across complex, long-horizon workflows and is rolling out to a set of trusted cyber defenders through Google's Fairwind Program. Neither post, as reflected in the available material, discloses benchmark figures or a general-availability date.

Google DeepMind announced Gemini 4 Argon for Robotics, a new generation of its Gemini model family adapted for robotics and embodied AI applications.

It extends Google DeepMind's flagship Gemini family from software-facing tasks into embodied AI, the part of the field concerned with systems that perceive and act in the physical world through sensors and actuators.

Coverage of the wider Gemini 4 Argon release states that it was presented on 30 September 2026 with a single-trajectory output capacity of 1 million tokens and priority access for cyber defenders — features described for long-horizon enterprise and software-development work rather than robotics specifically.

OpenAI says its GPT-6 'Astra', GPT-Image-2.5 and GPT-Live models are now powering Higgsfield, allowing creators on the platform to generate videos longer than 10 minutes with more precise visuals and voice-driven filmmaking.

According to the announcement, the integration extends AI video generation on Higgsfield from roughly one minute to over 10 minutes, a change aimed at longer-form creative work rather than short clips.

The announcement is framed as a partner story and names three models: GPT-6 Astra for longer videos, GPT-Image-2.5 for precise visuals, and GPT-Live for voice filmmaking. Higgsfield's platform separately aggregates third-party video models such as Kling 3.0, Veo 3.1 and Sora 2.

Anthropic published research warning that AI could one day spread like a computer worm — autonomously finding networked devices, deploying models on them and using those devices to propagate further, without necessarily needing data centers. In its tests, 15 Android TV boxes priced at about $55 each ran a split 26-billion-parameter Gemma 4 model at only 0.39 tokens per second, Alibaba's Qwen3.5-9B autonomously stood up inference services on 8 of 9 hardware types, and Zhipu's GLM-5.2 completed a find-transfer-run-propagate loop in an isolated simulated network, covering all 8 target nodes in 4 of 5 runs and 7 of 8 in the fifth.

The research puts a concrete hardware floor under autonomous AI propagation, showing that ordinary consumer devices can serve as a compute source, and Anthropic projects that small models suited to cheap devices may reach GLM-5.2's current simulated-propagation capability by the end of 2026.

The demonstrations are bounded: the experiment deliberately opened an unauthenticated debug interface, which greatly reduced the difficulty of intrusion, and GLM-5.2 itself ran on external servers — what was deployed to target devices was the smaller Llama 3.1 8B, so it did not achieve true self-replication independent of external compute. Based on current experimental data, a 9B model might need one to two days to complete one round of replication.

BNY, described as the world's largest custody bank, and trading firm Citadel Securities said on Tuesday they had completed a transaction using tokenized U.S. Treasuries, showing how blockchain-based government bonds could move from settlement into financing. BNY also said it plans to add digital cash and tokenized deposit capabilities and to extend the operating hours of its traditional settlement systems for Federal Reserve-eligible securities and U.S. triparty transactions, with the aim of reaching European and Asian trading hours next year.

The effort targets a key bottleneck in financial markets: moving government bonds used as collateral for trading and borrowing can take time, tying up assets that could otherwise be put to work. Citadel Securities digital assets operations lead Dan Doherty said efficient movement of high-quality collateral is fundamental to well-functioning markets and that reducing delays across the trade lifecycle could improve how institutional markets operate.

The transaction was a demonstration of how tokenized government bonds could move from settlement into financing, potentially letting firms reuse collateral sooner and free up cash for other trades. BNY chief innovation and market transformation officer Carolyn Weinberg said using a tokenized representation of a U.S. Treasury across both settlement and financing enables a more connected, efficient and always-on financial system.

Ethereum Name Service is planning a major overhaul of .eth domains that, according to CryptoSlate, includes an irreversible catch for domain holders. Coverage of the proposal points to an ENSv2 upgrade featuring a one-way domain migration option.

The change targets .eth, ENS's core naming product, and the described one-way migration gives holders a decision that reportedly cannot be reversed once taken. ENS's own FAQ states that existing name ownership would be preserved through the ENSv2 transition.

Coverage of the proposal cites an irreversible, one-way domain migration, support for stablecoin payments, and a 60% fee increase for five-character names. ENS's ENSv2 page describes a protocol rebuilt from the ground up with a new ownership model and new apps.

Interactive Brokers (NASDAQ: IBKR) has launched cryptocurrency staking, with infrastructure provided by digital asset firm zerohash. Initially, eligible Interactive Brokers LLC clients can stake ETH through the Staking Dashboard in IBKR's Client Portal, where they submit staking and unstaking requests and monitor pending activity.

IBKR CEO Milan Galik said the staking service lets clients earn additional yield on the crypto assets they hold, similar to the firm's stock yield enhancement program. It extends ETH staking access to a mainstream brokerage customer base.

Rewards, when earned, are credited as additional staked cryptocurrency and can compound while the position remains staked. IBKR currently supports trading in 20 digital assets and accepts deposits in USDC, RLUSD and PYUSD.

Binance introduced stricter rules governing market makers and token issuers, tightening the standards these parties must meet to operate and list on the platform.

Binance is the largest crypto exchange by trading volume, so changes to how it screens the market makers that supply order-book liquidity and the issuers that seek listings directly affect how tokens reach one of the market's main trading venues.

Bybit CEO Ben Zhou announced the launch of Bybit Direct Stock during the "Make Your Move" global keynote on October 13, giving users direct access to more than 1,000 US market trading pairs and assets, with real stock ownership. He said the stock assets will be held in Bybit's Unified Trading Account (UTA), and that the platform plans to later support equities as trading collateral, introduce stock lending, and allow users to transfer in positions held at brokers such as Futu and Moomoo.

The launch puts real US equity ownership inside a crypto exchange's unified account, and the stated roadmap toward equity collateral, stock lending and broker transfers-in would place a crypto-native platform in direct competition with traditional brokerages. The collateral, lending and transfer features are forward-looking plans announced by the CEO, not live functionality.

According to Zhou, the stock assets are custodied within the Unified Trading Account, which Bybit describes as centralizing spot, futures and options trading in one account. The planned broker transfer-in covers positions held at Futu and Moomoo, both of which support transferring US stocks out to another brokerage via methods such as DTC free-of-payment (FOP) transfers.

SkyAI, a company that held about 2 million SOL (~$214M), has disclosed that it sold 1 million SOL (~$107M) and has said it may continue selling. On-chain data shows the entity transferred out 1.57 million SOL (~$175M) during October, against an average purchase price of roughly $194 per SOL, implying losses of more than $160M.

Management's statement that it may keep selling matters because SkyAI was among the largest corporate holders of SOL, and the disclosed sales are an explicit, repeated source of token supply. The company is simultaneously running a $3.00-per-share cash tender offer, tying the unwind to its own equity.

The Arkham entity page tracking the addresses is labeled "Sharps Technology," while the company is referred to as SkyAI. Transferred-out tokens are on-chain movements and are not by themselves proof of sale; the confirmed disposal figure disclosed by the company is 1 million SOL. The tender offer at $3.00 per share covers common stock and pre-funded warrants.