cash

The Zakura team, which operates the Zcash network, released a technical article stating that they plan to allocate a unique viewing key for each ZEC exchange completed through NEAR Intents, in order to block future quantum computers from exploiting public refund addresses to piece together user payment histories. NEAR Intents supports cross-chain token exchanges, and when users exchange the privacy coin ZEC for USDC, the service will publish a Zcash address for the user on the NEAR public blockchain, which will be used to return any unused ZEC.The Zcash address contains a public key generated by the wallet's viewing key, which cannot be reverse-engineered by ordinary computers, but large quantum computers running Shor's algorithm could theoretically deduce the key from the address. Zcash wallets can generate multiple seemingly unrelated addresses, but they typically share the same viewing key. Once an attacker cracks it, they can associate all payments received by the account and read the amounts and notes. Zakura's solution allocates a unique viewing key for each exchange, while the spending key remains in the user's main account. Even if the future refund address is compromised, the attacker would only be able to see payments related to that specific exchange.This design also addresses a practical issue: wallets conducting hundreds of exchanges would generate hundreds of keys, requiring each key to scan the entire Zcash chain during backup recovery. Zakura's solution is a privately queryable database that uses private information retrieval technology, so when the wallet inquires about the refund destination, the database will not know the address being queried. Zakura claims that wallets built on its open-source library (including Vizor) will be able to add this feature in the coming weeks, and hardware wallets will follow after firmware support, ahead of the January quantum-resistant payment target set by Zcash developers this month.

Binance launched the Covered Call and Cash-Secured Put strategies on October 15.These two strategies allow users to sell options contracts while holding the required collateral to earn premium income. Users must provide the corresponding collateral, with Covered Call using stocks as collateral and Cash-Secured Put using cash as collateral.

On October 13, 2026, the Bank for International Settlements Innovation Hub released the second phase report of the Aurum project, themed "Exploring Privacy-Enhancing Technologies for Digital Cash." This phase implements a privacy-protecting digital cash prototype based on the existing Aurum codebase, helping policymakers understand how relevant technologies can alleviate the dilemma between privacy and compliance in digital cash.The prototype adopts the principles of privacy by design and default privacy, demonstrating practices that lie between complete anonymity and complete transaction transparency, and achieving customizable features to meet business needs in compliance and operations. The project indicates that privacy can be embedded in the design of digital cash through technology, rather than solely relying on institutional guarantees, thereby reducing unnecessary exposure of personal and transaction data while maintaining compliance and system integrity.Privacy-protecting designs can assist central banks and policymakers in understanding the relevant considerations and trade-offs. The prototype's functionalities demonstrate policy flexibility between privacy, transparency, compliance, and other attributes, which can be calibrated according to different policy choices and risk preferences. In addition to digital cash, central banks can further explore privacy-enhancing technologies in more use cases, with the report listing several usage experiences.

According to monitoring by PeckShield, hackers minted 19 million THEO tokens on the Base chain, then exchanged them for 700.8 ETH (approximately 1.76 million USD), and transferred the ETH to the Ethereum mainnet via a cross-chain bridge.As a result of this incident, the THEO token has fallen by 92% in the past 24 hours.

According to on-chain analyst Ai Yi (@ai_9684xtpa), a large holder who accumulated 5,147 ETH at an average price of $1,886.7 from August 12 to 13, 2026, transferred 5,170 ETH to Tornado Cash for "washing" in batches 5 hours ago, worth approximately $12.82 million.This portion of tokens has an unrealized profit of $3.056 million, and the purpose of the transfer is unknown.

According to monitoring by Lookonchain, SkyAI, which has held over 2 million SOL worth approximately 214 million USD, has recently been selling a large amount of SOL. SkyAI has disclosed that it recently sold 1 million SOL, worth about 107 million USD, and stated that it may continue to sell.On-chain data shows that since October, SkyAI has transferred out 1.57 million SOL, worth approximately 175 million USD. Its average purchase price was around 194 USD, and it currently has an unrealized loss of over 160 million USD.

The blockchain project Tempo released a report indicating that the Financial Accounting Standards Board (FASB) plans to adjust accounting rules for stablecoins, allowing eligible tokens to be classified as cash equivalents on company balance sheets, or reducing accounting barriers for enterprises adopting stablecoins.Under current accounting practices, stablecoins, even if fully backed by U.S. dollars, may not be counted as cash reserves reported by the company, thereby affecting liquidity ratios and loan covenants. The proposed rules allow companies to use stablecoins for payments and settlements but require them to have direct redemption rights with the issuer. Purchasing USDC through exchanges may not necessarily meet the criteria for classification as cash equivalents.In its 2025 annual report, Coinbase classified USDC and other payment-type stablecoins as cash equivalents, based on its redemption arrangement with Circle. The public comment period for the FASB proposed rules will continue until November 19, after which the board will review feedback and determine the final accounting changes and effective date. At the time of this proposal's release, the market size for U.S. dollar stablecoins had exceeded $300 billion.

On-chain detective Specter posted on their personal channel that between October 9 and 10, the attacker addresses related to the CryptoBilis Ledger hardware wallet incident deposited 2990.3 ETH into Tornado Cash, worth approximately 7.45 million USD.Monitoring shows that the attacker previously withdrew funds to 14 addresses, then cross-chained to ZEC via NEAR Intents and processed for privacy. Specter stated that the attacker partially reused previous deposit addresses to submit withdrawal transactions, and some withdrawal transactions were initiated by wallets associated with the addresses that paid Gas fees during the theft, thereby linking the funds to the withdrawal actions.Currently, the attacker continues to transfer and hide the related funds. The previous CryptoBilis incident involved supply chain risks of the Ledger hardware wallet, and Ledger has stated that they are investigating and reminding relevant users to pay attention to device security.

According to The Defiant, on-chain records of the Ethereum blockchain show that a wallet related to the CryptoBilis theft has transferred 464 ETH to the mixing protocol Tornado Cash.On-chain data indicates that these funds first passed through an intermediary address and were then dispersed to four deposit wallets, while the source address currently retains about 700 ETH.

According to Salus monitoring, the attacker of the cryptocurrency payment service provider Triple-A has transferred 4,970 ETH (worth approximately 12.4 million USD) into the mixing tool Tornado Cash.In July of this year, the attacker stole assets from Triple-A's own treasury, with public estimates of the loss being around 11.8 million USD. After bridging the funds across chains to the Ethereum network and completing the token exchange, the attacker dispersed the funds to two intermediary addresses on September 6. The attacker consolidated the two streams of funds through a single wallet and recharged them in batches to Tornado Cash, which included 49 transactions of 100 ETH and 7 transactions of 10 ETH, with some of the funds sourced from previous withdrawals from the mixer.

According to on-chain analyst Ember (@EmberCN), a wallet received 263 ETH from Tornado Cash yesterday, then sold it for 643,000 USDC and deposited it into Hyperliquid.The address opened a short position of 305.5 BTC at a price of $83,068 with a maximum leverage of 40 times, with a position size of approximately $25.38 million, and the liquidation price is $84,088, currently with an unrealized profit of about $160,000.

Bitcoin News posted on the X platform that Strike has launched the Stacks Bitcoin savings envelope system, allowing users to divide their holdings into up to 5 custom-named buckets, each supporting fee-free regular purchases. Transfers between Stacks and the main balance are fee-free and unlimited, but funds must be transferred back to the main balance before withdrawal.Strike has added an interest of 3.6% on USD cash balances, with interest paid in Bitcoin, and the related assets remain stored in Strike's multi-signature cold storage.

Bitget has launched multiple financial and holding reward activities. From today 22:00 to October 16 21:59 (UTC+8), users can go to "Simple Earn" to subscribe to the following cryptocurrencies, with the highest annualized returns: USDT (8%), USDGO (10%), USDC (8%), BTC (1%), ETH (4.5%); VIP users subscribing to XAUT can enjoy a maximum of 15% APR.At the same time, Bitget has opened BTC and SOL holding rewards. Eligible VIP users who net recharge or hold BTC can unlock a maximum subscription limit of 50 BGBTC; newly added and holding BGSOL VIP users can enjoy an additional 4% APR reward on the net increase.In addition, users who newly add and hold Cash+ have the chance to share a 50,000 USDGO prize pool or enjoy an additional interest rate of up to 4%; if they also hold a designated U-based contract with a net long position, they can receive an additional interest rate of up to 4%, with a comprehensive APR of up to 12%. Specific activity details and opening times are subject to the official Bitget page.

Decentralized exchange THORChain announced that native Zcash swaps are now live, allowing users to exchange ZEC with assets on other supported blockchains without relying on wrapped tokens or centralized exchanges. This launch follows the protocol's 3.20 update, which introduced support for Zcash and Monero. At that time, the liquidity in the Zcash pool exceeded $50,000, and the network has begun processing real ZEC swaps.The pool is currently in a soft launch phase, with performance being monitored. If vulnerabilities or other issues arise, trading may be temporarily paused. The current pool size can easily support five-figure trades, while larger trades will experience higher slippage and slower settlement until liquidity increases. When the fee-to-depth ratio is sufficiently high, the protocol's own liquidity will automatically join the Zcash pool. This mechanism was introduced with the 3.20 upgrade, allowing the protocol to deploy a portion of liquidity fees (initially set at 20%) to supported liquidity pools.After integration, ZEC holders can swap their native assets with supported assets such as Bitcoin, Ethereum, and stablecoins without needing to deposit Zcash with a centralized custodian or convert it into wrapped assets on other networks. Zcash brings the total number of native blockchains in THORChain's cross-chain liquidity network to 14, with swaps settled in native assets on their respective chains, rather than transferring assets through cross-chain bridges or requiring users to relinquish custody.

The Zcash development team plans to add post-quantum signature support to the network in January. Zakura engineer Roman Akhtariev stated in an engineering blog that the team plans to implement post-quantum signature opcodes in Zcash in January. These opcodes will enable Zcash to verify hash-based signatures, thereby resisting quantum computing attacks. The team has not yet confirmed a specific network activation date. This upgrade aims to prevent attackers from using current public keys to reverse-engineer and forge payment authorizations from wallet owners.The initial phase of this upgrade will protect transparent transactions. Zcash has two payment methods: shielded payments hide the sender, receiver, and amount; transparent payments are similar to Bitcoin, where addresses and amounts are visible on the chain. According to CoinDesk, based on ZecStats data, approximately 11.96 million of the 16.98 million issued ZEC are stored in the transparent pool, accounting for about 70%. The January plan primarily targets this public portion. Additionally, Zakura has developed a private query tool that allows wallets to check balances without exposing associated addresses to the server; the experimental version is available in the "Private queries" settings of the Zcash wallet Vizor.Before the release of Zakura's engineering article, Ethereum researcher Justin Drake warned holders on Thursday to prepare for what he called "bunker mode," stating that in the worst-case scenario, AI could find shortcuts to break the mathematical protections of Bitcoin and Ethereum wallets in "months rather than years."

Bitcoin News posted on platform X that U.S. federal prosecutors informed Judge Katherine Polk Failla that the U.S. Court of Appeals for the District of Columbia upheld the conviction of Bitcoin Fog founder Roman Sterlingov on September 25, supporting the trial of Tornado Cash defendant Roman Storm in New York.The appellate court determined that the District of Columbia had jurisdiction to prosecute, reasoning that law enforcement had deposited approximately $250 worth of Bitcoin into Bitcoin Fog from the District of Columbia. Prosecutors stated that user Shakeeb Ahmed accessed Tornado Cash from his apartment in Manhattan, thus the same logic applies. Roman Storm released this letter and noted that FinCEN withdrew the mixer report request made in 2023 on the same day, citing that the proposal could hinder legitimate activities.

According to Onchain Lens monitoring, a certain address (t1hBootrMTnk9t2uYV3AWhMTswxphheEpEr) withdrew 1000 ZEC from Binance one hour ago, worth 1.33 million dollars.Shortly after, all 1000 ZEC were transferred into the Zcash privacy pool, making subsequent transfers private.

According to market news, Hunter Biden, the son of former U.S. President Biden, announced the results of an independent investigation into the launch of the LAPTOP token, stating that he has commissioned the forensic company Groom Lake to verify all transactions on the day of the launch. He denied that the team cashed out, stating that the founder's tokens remain concentrated in the same wallet and have not been transferred since the launch; his personal tokens have been locked for six months and will be released over two years.He cited the investigation, stating that Market Maker 1 had $500,000 in startup capital but only invested about $5,200 and less than 30,000 tokens into the liquidity pool, which accounted for only 0.003% of the total supply. The extremely low liquidity caused the price to rise from $0.05 to about $317 in less than two minutes, followed by a 98% drop within the next hour. After the price peaked 84 seconds later, Market Maker 1 withdrew funds during the sell-off, causing the available funds to support sell orders to drop from $16,200 to zero, close to the current price.He stated that Market Maker 1's DEX position made a profit of about $686,000, while Market Maker 2's related DEX transactions netted over $2.1 million, and he believes that the market maker responsible for the launch issues should buy back and destroy the tokens. He stated that he takes ultimate responsibility, will not exit the project, and plans to destroy most of the unclaimed tokens from the first airdrop next week; this airdrop accounts for 10% of the total supply.

ChainCatcher live report, at the Token2049 conference in Singapore, Gemini co-founders Tyler and Cameron Winklevoss stated that Zcash is the cryptocurrency version of Bitcoin, just as the early internet was HTTP, Zcash is HTTPS. They also announced that they have submitted a spot Zcash ETF application to the SEC.