Coinbase Study Finds Privacy Tools Like Railgun Are Mathematically Safe From Quantum Attacks
study producing major crypto privacy news found that zero-knowledge proof systems including Railgun, PrivacyPools, Aleo, and Aztec are mathematically immune to quantum attacks, because they rely on information-theoretic security rather than encryption, meaning they remain safe even against infinitely powerful…
By Peace Longe 4/21/2026, 8:40:00 PM
US-Iran ceasefire odds slip as military operations continue
The ongoing military operations highlight the challenges of achieving strategic goals through force, emphasizing the need for diplomatic solutions. The post US-Iran ceasefire odds slip as military operations continue appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 8:38:33 PM
Bitget Unveils SpaceX-Linked Pre-IPO Token on Solana
TLDR Bitget launched IPO Prime to offer tokenized exposure to private companies before they go public. The platform debuted with preSPAX, a token linked to SpaceX and issued through Republic. The preSPAX token runs on the Solana blockchain for minting and settlement. Users subscribed with stablecoins and received allocations based on total pooled...
By Maxwell Mutuma 4/21/2026, 8:33:38 PM
Shakepay Enables Bitcoin-Backed Lending in Canada After AMF Green Light
Shakepay, a CIRO-registered Canadian crypto platform with more than 1.5 million users, began rolling out bitcoin-backed loans on April 21, 2026, making it the first crypto trading platform in Canada to offer such a product. Key Takeaways: Shakepay launched bitcoin-backed loans on April 21, 2026, becoming the first crypto platform in Canada to...
By Jamie Redman 4/21/2026, 8:33:35 PM
UAE becomes sixth-largest sovereign Bitcoin holder with $900M investment
The UAE's Bitcoin investment signals a strategic shift towards economic diversification, potentially influencing global crypto market dynamics. The post UAE becomes sixth-largest sovereign Bitcoin holder with $900M investment appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 8:29:14 PM
Iran receives US signals to end blockade, but key talks remain stalled
The stalled talks highlight the fragility of diplomatic progress and the market's sensitivity to geopolitical uncertainties. The post Iran receives US signals to end blockade, but key talks remain stalled appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 8:27:49 PM
Iran open to talks but demands hinder ceasefire prospects by April 30
Iran's demands complicate diplomatic progress, reducing ceasefire likelihood and highlighting geopolitical tensions and market skepticism. The post Iran open to talks but demands hinder ceasefire prospects by April 30 appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 8:27:05 PM
IRGC sidelines Iran’s president, takes control of state functions
The IRGC's power grab may lead to increased regime instability, reducing diplomatic prospects and extending the timeline for change. The post IRGC sidelines Iran’s president, takes control of state functions appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 8:26:29 PM
Revolut IPO Talks Hint at $200 Billion Listing Goal
TLDR Revolut discussed a potential IPO valuation of up to $200 billion with investors. The company said it will not pursue a public listing before 2028. A November secondary share sale valued Revolut at $75 billion. Reports indicate Revolut may seek a $100 billion valuation in a 2026 secondary sale. Revolut’s pre-tax profit rose 57% [...] The post...
By Maxwell Mutuma 4/21/2026, 8:25:12 PM
How Multi-Tenant GPU Clusters Optimize AI Workloads
Learn how multi-tenant GPU clusters combine efficiency and isolation for AI-native teams, solving capacity challenges without idle resources. (Read More)
By N/A 4/21/2026, 8:25:04 PM
Arbitrum's $71 million recovery from KelpDAO exploit sparks DeFi debate
Arbitrum's (ARB) $71 million recovery of stolen funds linked to the KelpDAO exploit has triggered a broad debate over decentralization across the crypto community.
By N/A 4/21/2026, 8:22:20 PM
Blockchain.com Integrates Hyperliquid Perps in Wallet
TLDR Blockchain.com has integrated Hyperliquid to offer perpetual futures trading within its DeFi wallet. Users can fund positions directly with Bitcoin and trade without moving assets to a separate exchange. The platform provides access to more than 190 crypto markets with leverage of up to 40%. Hyperliquid supplies the execution infrastructure...
By Maxwell Mutuma 4/21/2026, 8:18:44 PM
Trump extends Iran blockade as ceasefire breach deadline looms
Trump's blockade extension signals a strategic move for negotiation leverage, impacting market dynamics and hinting at a prolonged standoff. The post Trump extends Iran blockade as ceasefire breach deadline looms appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 8:18:34 PM
Bipartisan PACE Act Introduced To Expand Crypto Firms’ Access To Fed Payment Services
A new bipartisan bill introduced on Tuesday would give many fintech and crypto payment providers a clearer path to the US payment infrastructure. The new measure, called the Payments Access and Consumer Efficiency (PACE) Act, is designed to create a national payments license that would streamline how qualified companies can access federal payment...
By Ronaldo Marquez 4/21/2026, 8:16:00 PM
Coinbase Advisory Board Paper Warns Crypto Cannot Afford to Wait on Quantum Threats
A 50 page quantum computing crypto risk assessment published Tuesday by Coinbase’s independent advisory board concludes that while today’s blockchains remain secure, a fault-tolerant quantum computer capable of breaking widely used encryption is increasingly plausible and that preparation must begin…
By Peace Longe 4/21/2026, 8:15:00 PM
Trump halts Iran strikes, cites internal fractures in Iranian government
The halt in strikes highlights geopolitical uncertainty, impacting market confidence and complicating prospects for a US-Iran peace deal. The post Trump halts Iran strikes, cites internal fractures in Iranian government appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 8:13:23 PM
Democracy Forward’s FOIA request heightens scrutiny on Kash Patel
The intensified scrutiny on Patel could destabilize his position, reflecting broader political vulnerabilities and market volatility. The post Democracy Forward’s FOIA request heightens scrutiny on Kash Patel appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 8:12:33 PM
US Treasury imposes new sanctions on Iran weapon suppliers
The new sanctions likely diminish chances for US-Iran diplomatic progress, impacting market expectations for sanction relief agreements. The post US Treasury imposes new sanctions on Iran weapon suppliers appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 8:10:37 PM
Spot gold drops 3% amid Iran conflict and US dollar strength
Gold's decline amid geopolitical tension and dollar strength highlights shifting market priorities, potentially altering safe-haven dynamics. The post Spot gold drops 3% amid Iran conflict and US dollar strength appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 8:07:22 PM
Tucker Carlson apologizes for Trump support, market expects Trump insult
Carlson's apology may deepen divisions within Trump's base, highlighting potential fractures in the MAGA movement and testing loyalty dynamics. The post Tucker Carlson apologizes for Trump support, market expects Trump insult appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 8:06:45 PM
IRGC showcases missiles in Tehran amid low odds of Israeli military action
The IRGC's missile display underscores Iran's aggressive stance, potentially escalating regional tensions despite low immediate conflict odds. The post IRGC showcases missiles in Tehran amid low odds of Israeli military action appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 8:05:52 PM
Mandelson scandal threatens Starmer’s leadership as pressure mounts
The scandal could destabilize Labour's leadership, potentially leading to a shift in political dynamics and increased opposition influence. The post Mandelson scandal threatens Starmer’s leadership as pressure mounts appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 8:05:10 PM
US Treasury yields rise as US-Iran tensions escalate
Rising Treasury yields reflect heightened geopolitical risks, potentially influencing monetary policy and market stability amid US-Iran tensions. The post US Treasury yields rise as US-Iran tensions escalate appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 8:03:24 PM
US pauses Iran talks with 10 days left before ceasefire deadline
The pause in US-Iran talks heightens the risk of conflict, impacting market sentiment and increasing uncertainty in diplomatic resolutions. The post US pauses Iran talks with 10 days left before ceasefire deadline appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 8:02:32 PM
Arbitrum Freezes KelpDAO Hack Funds, Exposing Crypto’s Biggest Lie
Arbitrum’s Security Council has frozen 30,766 ETH tied to the KelpDAO exploit, moving the funds out of an address on Arbitrum One and into an intermediary wallet that now requires further governance action to unlock. At roughly $71 million, the move was large enough on its own. What made it more consequential was the method: a crypto governance...
By Jake Simmons 4/21/2026, 8:00:48 PM
How crypto futures markets are feeding ‘scam coin’ insider pump and dumps
RAVE briefly crossed a $6.7 billion valuation on Apr. 18 before collapsing nearly 95% in hours. The market infrastructure surrounding the token, consisting of thin float, concentrated supply, and a live perpetual market, drove the scale of both the rally and the destruction. ZachXBT alleged that insiders controlled more than 90% of RAVE's supply,...
By Gino Matos 4/21/2026, 8:00:40 PM
DoorDash to offer stablecoin payments to users via Tempo blockchain
Tempo announced the integration of ”stablecoin-powered payment infrastructure” with DoorDash, Stripe, Paradigm, Coastal Bank and ARQ.
By Turner Wright 4/21/2026, 8:00:38 PM
Bitcoin And Ethereum Inflows On Binance And Coinbase Climb To Multi-Month Levels
Bitcoin and Ethereum continue to maintain their newfound bullish momentum, with BTC’s price holding above the $76,00 level and ETH’s price positioned around $2,300. After this period of upward price action, both coins are now being moved to leading cryptocurrency exchanges, reflecting a shift in sentiment. Renewed Bitcoin And Ethereum Exchange...
By Godspower Owie 4/21/2026, 8:00:14 PM
Silicon Valley’s ‘monitoring the situation’ MTS meme becomes a 24/7 news machine delivered by a16z
a16z is backing “Monitoring the Situation,” a 24/7 X livestream born from Polymarket meme culture, as tech VCs build their own news-industrial complex. Andreessen Horowitz, also known as a16z, the Silicon Valley venture firm that has raised more than $15…
By Andrew Folkler 4/21/2026, 8:00:00 PM
Strategy gains $3.6B from Bitcoin as holdings surpass BlackRock
Institutional confidence in Bitcoin's future is rising, but sustained growth depends on favorable market conditions and regulatory support. The post Strategy gains $3.6B from Bitcoin as holdings surpass BlackRock appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 7:59:05 PM
Fed Chair Nominee Warsh Backs Crypto at Hearing Amid $100M Portfolio Reveal
The post Fed Chair Nominee Warsh Backs Crypto at Hearing Amid $100M Portfolio Reveal appeared first on Coinpedia Fintech News US Federal Reserve Chair nominee Kevin Warsh answered several questions today regarding cryptocurrencies, monetary policy, and the Fed’s independence during his Senate Banking Committee confirmation hearing. Senate grills...
By Steve Muchoki 4/21/2026, 7:59:05 PM
Hezbollah attacks northern Israel, raising doubts over US-brokered ceasefire
The attack underscores the fragility of the ceasefire, potentially complicating U.S. diplomatic efforts and impacting regional stability. The post Hezbollah attacks northern Israel, raising doubts over US-brokered ceasefire appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 7:57:36 PM
Ripple Reveals a Four Phase Plan to Make the XRP Ledger Safe From Quantum Attacks by 2028
Ripple announced a structured four phase roadmap for XRP quantum security on Monday, targeting full quantum-resistant cryptography on the XRP Ledger by 2028 in response to Google Quantum AI research showing that current blockchain cryptography could eventually be cracked by…
By Peace Longe 4/21/2026, 7:55:00 PM
Coinbase Partners With Nium on Global USDC Payouts
TLDR Nium has selected Coinbase to integrate USDC payments across its global network in more than 190 countries. The integration allows businesses to fund cross-border payouts in USDC and settle in stablecoins or local currencies. Coinbase provides custody, liquidity, and wallet infrastructure to support the new payment setup. Nium’s system...
By Maxwell Mutuma 4/21/2026, 7:52:55 PM
US Vice President Vance cancels Pakistan trip amid US-Iran peace uncertainty
The cancellation highlights the fragility of US-Iran relations, impacting diplomatic strategies and market confidence in peace prospects. The post US Vice President Vance cancels Pakistan trip amid US-Iran peace uncertainty appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 7:52:22 PM
US confirms Trump tariffs on Mexico permanent, EU retaliation possible
The permanence of US tariffs on Mexico may strain international trade relations, increasing the likelihood of EU retaliatory measures. The post US confirms Trump tariffs on Mexico permanent, EU retaliation possible appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 7:50:22 PM
Prediction markets are the new secret weapon for Coinbase and Robinhood growth
Cantor Fitzgerald analysts said the market is treating recent trading slumps as old news, shifting focus instead toward prediction markets and new product launches to drive the next leg of growth for Coinbase and Robinhood.
By Helene Braun 4/21/2026, 7:49:51 PM
Is Ripple’s XRP Poised To Dominate The Next DeFi Wave? One Pundit Thinks So
XRP is once again attracting attention across the cryptosphere as expectations build around its role in the next evolution of DeFi.
By Brenda Ngari 4/21/2026, 7:48:40 PM
Blockchain.com adds perpetual futures trading to self-custody wallets
With a CFTC greenlight expected soon, industry momentum is building for the derivative contracts still only available to non-US investors.
By Nate Kostar 4/21/2026, 7:48:14 PM
Iran skips US talks in Pakistan, complicates ceasefire efforts
Iran's absence from talks may destabilize regional peace efforts, highlighting the fragility of diplomatic negotiations and ceasefire agreements. The post Iran skips US talks in Pakistan, complicates ceasefire efforts appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 7:44:45 PM
Bitcoin Seesaw: Geopolitical Uncertainty Shakes BTC Price Ahead of US-Iran Deadline
On April 21, bitcoin experienced a volatile trading session, fluctuating between $75,000 and $77,000 as market sentiment swung alongside high-stakes geopolitical developments. Key Takeaways: Bitcoin hit a $76,944 high after reports of U.S. and Iranian officials meeting in Pakistan on April 21. High volatility fueled the liquidation of 6,769...
By Terence Zimwara 4/21/2026, 7:44:34 PM
XRP Derivatives Expand as Coinbase Rolls Out TAS Tool
TLDR Coinbase will launch a Trade at Settlement feature for XRP futures on May 1, 2026. The new mechanism will allow traders to execute XRP derivatives at official settlement prices. Coinbase will apply the TAS feature to both nano XRP and full-sized XRP futures contracts. The exchange confirmed that it structured the feature under Commodity [...]...
By Maxwell Mutuma 4/21/2026, 7:42:35 PM
Trump denied nuclear codes access during Pentagon meeting, claims ex-CIA analyst
The claim highlights potential checks on presidential power, influencing market perceptions of U.S. military actions and peace prospects. The post Trump denied nuclear codes access during Pentagon meeting, claims ex-CIA analyst appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 7:42:18 PM
Florida AG investigates OpenAI over ChatGPT’s alleged role in 2025 shooting plot
The investigation could delay GPT-5.5's release, impacting OpenAI's market position and giving competitors a chance to catch up. The post Florida AG investigates OpenAI over ChatGPT’s alleged role in 2025 shooting plot appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 7:40:55 PM
Iran undecided on joining US peace talks, official tells BBC
Iran's indecision on US peace talks heightens uncertainty, impacting diplomatic progress and market predictions on regional stability. The post Iran undecided on joining US peace talks, official tells BBC appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 7:40:10 PM
Warsh Pledges to Sell His Full Crypto and Venture Portfolio Worth at Least $192 Million
Kevin Warsh crypto holdings disclosed in his 69-page OGE Form 278e financial filing include indirect stakes in more than 20 blockchain and digital asset companies spanning Solana, dYdX, Polymarket, Dapper Labs, and Lightning Network infrastructure, with combined assets alongside his…
By Peace Longe 4/21/2026, 7:40:00 PM
Bitcoin Entering Final Bull Trap Below $80k Before a Crash to $52k
Bitcoin is currently trading around $76k at press time, amid strong ETF inflows and declining exchange reserves.
By Talha Arshad 4/21/2026, 7:39:50 PM
$CHIP token launch coincides with crypto rally amid US-Iran ceasefire
The $CHIP token launch amid a crypto rally highlights the potential for increased market volatility and investor interest in digital assets. The post $CHIP token launch coincides with crypto rally amid US-Iran ceasefire appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 7:36:33 PM
US recalls ambassador to Israel amid Iran nuclear tensions
The recall signals strategic recalibration, reflecting skepticism about imminent US-Iran diplomatic progress amid nuclear tensions. The post US recalls ambassador to Israel amid Iran nuclear tensions appeared first on Crypto Briefing.
By Estefano Gomez 4/21/2026, 7:34:31 PM
Taiko Achieves 100% ZK Coverage, Slashes Mainnet Finality to 2s
Taiko's 2025 milestones include 100% zero-knowledge (ZK) proof coverage, 2-second finality, and DAO governance, solidifying its position as a leader in Ethereum scaling. (Read More)
By N/A 4/21/2026, 7:31:52 PM