Wallet

Foundation, a Boston-based bitcoin hardware wallet maker, closed a $6.4 million funding round led by Fulgur Ventures to broaden its security stack into identity, multi-factor authentication, and AI agent authorization. The company also made Passport Prime generally available starting at $349 after beginning shipments to pre-order customers in March 2026. Foundation said it plans to launch a KeyOS app store for all users by the end of Q2 2026.

Blockchain.com has confidentially filed for a US initial public offering, signaling another attempt by infrastructure-focused firms to re-enter public markets. The company said on 21 May it submitted a draft Form S-1 to the US SEC for a proposed IPO of its Class A ordinary shares, without disclosing share count or valuation. The filing arrives as IPO discussions intensify across AI, fintech, and crypto infrastructure after a prolonged slowdown.

Glassnode says 6.04 million BTC—30.2% of circulating supply—sits in wallets whose public keys have already been revealed after spending, a setup that concentrates potential quantum-related risk in large custodians. The dataset indicates exchanges hold about 1.66 million exposed BTC, while exposure varies widely by entity, from Binance's 85% to Coinbase's 5% of labeled balances.

D'CENT announced on May 19 a three-week campaign that lets XRP holders deposit into the Monarq XRP Yield Vault (MXRPY) via its app while staying in a hardware-wallet environment. Running from May 19 to June 8, the promotion offers zero platform fees and a $40,000 reward pool paid in XRP and FLR, while Flare network fees are handled without requiring users to buy separate gas tokens.

The U.S. Office of the Comptroller of the Currency’s clearance of national trust charters tied to Coinbase, Ripple, Bitgo and other digital-asset firms has widened a regulatory dispute involving Sen. Elizabeth Warren. On May 19, Bitgo CEO Mike Belshe published an open letter arguing that fiduciary custody keeps client assets segregated in bankruptcy-remote accounts and does not involve deposits or lending. He also said stablecoin reserves are held in full and supported by twice-monthly attestations plus quarterly and annual audits.

npm has revoked granular write-access tokens tied to compromised developer accounts in an effort to curb a new wave of the self-replicating “Mini Shai-Hulud” supply-chain worm. The platform also urged users to rotate secrets and move to Trusted Publishing, but researchers say infected machines can still leak data locally. The latest spike followed the compromise of the npm account “atool,” which published 637 malicious versions across 323 packages in 27 minutes.

Flare Network has integrated native XRP support into its wallet setup, enabling XRP holders to use DeFi functions such as lending, borrowing, liquidity provision, and yield farming via FXRP. The rollout was highlighted in a Flare post dated May 19, 2026, which also referenced a $55K reward pool tied to a D'CENT wallet campaign. Following the announcement, Flare's TVL was said to rise 20%, with wallets holding more than 10 million XRP described as key drivers.

XRP Ledger is stepping up preparations for potential quantum-computing risks by partnering with post-quantum cryptography and cybersecurity firm Project Eleven. On May 19, Project Eleven said the collaboration will audit XRPL's validator, wallet, custody, and networking stack and work on hybrid signatures plus a quantum-secure custody wallet prototype.

Flare and D’CENT Wallet introduced an integration on Tuesday that lets D’CENT hardware wallet users access XRP yield vaults using XRP Ledger signatures, without needing a new chain, wallet, or gas token. Two vaults are live at launch — Monarq and earnXRP — with deposits and withdrawals executed via a two-signature XRPL flow and smart-contract automation.

Revolut said on Monday it will launch its first physical crypto card: a Dogecoin-themed debit card with an LED display that lights up on tap-to-pay. The company said the card can be used wherever Visa and Mastercard are accepted, and it will initially roll out in the UK and the EEA, excluding Hungary, Switzerland, and Portugal.