The week: an Aave rescue and a quantum vulnerability laid bareBitcoin holds $78k; DeFi rallies for Aave; a quantum key demo; and more from the week.

Community Raises Over 100,000 ETH for Aave RecoveryFunds established to support protocols affected by the Kelp attack.

Litecoin Undergoes Block Reorganization Due to Zero-Day VulnerabilityLitecoin network faced a block reorganization due to a zero-day vulnerability exploited by attackers.

Google to Invest Up to $40 Billion in AnthropicGoogle to invest up to $40 billion in AI startup Anthropic, deepening partnership.

Why Bitget is blending crypto, forex and AIInterview: how Bitget is blending crypto, forex and AI into a financial super-app.

Developer Announces Bitcoin Hard Fork and Distribution of Satoshi’s CoinsBitcoin developer Paul Sztorc announced a hard fork named eCash, set for August 2026.

Bitwarden CLI hack, arrest of illicit debt collectors in Kyiv, and other cybersecurity newsThe week's key cybersecurity stories: AI-fuelled DPRK heists, Bitwarden CLI breach, spyware spread.

ECB Selects Payment Standards for Digital EuroECB advances digital euro with new payment standard agreements.

US Military Officer Charged with Insider Betting of $400,000 via PolymarketUS military officer charged with insider betting via Polymarket.

Researcher Earns 1 BTC for Cracking ECC Key with Quantum ComputerResearcher cracks 15-bit ECC key with quantum computer, earning 1 BTC.

Succinct Launches App to Combat AI-Generated FakesSuccinct Labs launches ZCAM, an iPhone app for verifying photo and video authenticity.

DeepSeek Unveils a Rival to Claude, ChatGPT, and GeminiDeepSeek unveils its new language models, surpassing Claude Opus 4.6 and GPT-5.4.

Microsoft Initiates First Voluntary Retirement Program in 51 YearsMicrosoft offers voluntary retirement with compensation for the first time.

Bitcoin’s run to $79,000 driven by $1.1bn in short liquidations, says CryptoQuantCryptoQuant: bitcoin’s $79,000 surge was a short squeeze, not spot-driven.

CoinShares Observes the Fusion of TradFi and DeFi into Hybrid FinanceIn 2026, traditional finance and distributed ledgers began to form a unified system, CoinShares reports.

OpenAI unveils GPT-5.5, its flagship AI modelOpenAI launches GPT-5.5, a “new class of intelligence” for real work and agents.

MegaETH Team Announces Token Launch DateMegaETH sets MEGA token launch for April 30.

Tether Freezes $344 Million in USDT at US RequestTether announced the freezing of $344 million in USDT linked to illegal activities.

Belarus Outlines Regulations for Crypto BanksBelarus defines rules for crypto banks, listing 26 cryptocurrencies and 11 operations.

DeFi Hacks Cast Doubt on Wall Street’s Crypto AmbitionsDeFi hacks lead to $15B loss, raising concerns for Wall Street's crypto plans.