Privacy protocol Umbra shuts front end to stifle Kelp exploiters April 22, 2026, 2:11 am
Umbra has shut down its front end to stop hackers, but says it can’t stop the use of its smart contracts or another version of its open-source front end.
US law firm apologizes after AI hallucinations made it to a legal filing April 22, 2026, 1:50 am
Sullivan & Cromwell’s Andrew Dietderich said the company has AI policies to prevent incorrect citations and other errors, but procedures weren’t followed on this occasion.
Coinbase highlights Algorand, Aptos' work to mitigate quantum threat April 22, 2026, 12:57 am
Coinbase’s quantum advisory board says quantum computing isn’t yet a threat, but has urged for upgrade work to begin, with some blockchains being less prepared than others.
Justin Sun sues World Liberty Financial over token lockup April 22, 2026, 12:29 am
Sun said the lawsuit is to protect his rights as a WLFI token holder and doesn't change his support of US President Donald Trump and his administration’s efforts to make the US crypto-friendly.
Inside the MAS Sandbox: How Ripple is testing RLUSD for real trade settlements April 21, 2026, 11:44 pm
How Ripple is testing RLUSD in Singapore’s MAS sandbox to enable conditional trade settlements, and why this does not amount to full regulatory approval.
US admiral calls Bitcoin an instrument for US ‘power projection’ April 21, 2026, 10:14 pm
US Navy Admiral Samuel Paparo said Bitcoin’s proof-of-work technology has "really important" computer science applications when it comes to cybersecurity.
Here’s what happened in crypto today April 21, 2026, 5:40 pm
Need to know what happened in crypto today? Here is the latest news on daily trends and events impacting Bitcoin price, blockchain, DeFi, NFTs, Web3 and crypto regulation.
Kalshi mulls crypto expansion with perpetual futures launch: Report April 21, 2026, 5:08 pm
According to reports, Kalshi plans to launch crypto perpetual futures, expanding beyond prediction markets as regulated derivatives offerings in the US continue to evolve.
DoorDash to offer stablecoin payments to users via Tempo blockchain April 21, 2026, 4:00 pm
Tempo announced the integration of ”stablecoin-powered payment infrastructure” with DoorDash, Stripe, Paradigm, Coastal Bank and ARQ.
Blockchain.com adds perpetual futures trading to self-custody wallets April 21, 2026, 3:48 pm
With a CFTC greenlight expected soon, industry momentum is building for the derivative contracts still only available to non-US investors.