protocol
Stellar publishes Quantum Preparedness Plan, ML-DSA to Soroban 2026
Stellar publishes a three-stage Quantum Preparedness Plan. Stage 1 (2026) ships ML-DSA-44/65 verification as Soroban host functions, then quantum-safe contract accounts.
Newsroom
exploit
Aragon DAO governance takeover drains $1.58M from Token of Power
An attacker bought >50% of a 16,384-supply MiniMeToken, used a no-timelock Aragon Voting app to mint 10B TOP in a single tx, and swapped them for 944.2 WETH from a Balancer V1 pool.
exploit
Humanity Protocol drained ~$36M after multisig keys traced to employee laptop
Coordinated Ethereum + BSC attack on Humanity Protocol's Hyperlane bridge: 141.2M H drained, 200M minted on BSC, ~$36M stolen. Team blames a compromised employee laptop; H down ~86%.
governance
Cardano IO Research 32.9M ADA vote closes today, trailing 86.7% no
Input Output Global's 32.9M ADA Cardano Vision 2026 research ask is on track to fail its DRep vote today, June 8, with 86.72% no — Hoskinson says IOG will not resubmit.
exploit
Yuga Labs whitehats 68 NFTs out of a live Flooring Protocol exploit
Yuga's blockchain lead 0xQuit and researcher Coffee pulled 29 BAYC, 2 CryptoPunks and 37 other blue-chips out of Flooring before an attacker could redeem them through the fpToken bug.
protocol
IoTeX activates v2.4.0 Yap hard fork tonight, pulls in four Pectra EIPs
IoTeX mainnet hard-forks at block 48,985,561 (~23:52 UTC on June 7). v2.4.0 'Yap' ships EIP-7702 account abstraction, EIP-7623 calldata repricing, EIP-2935 and EIP-2537.
governance
Arbitrum Foundation goes back to the DAO for a $43.5M 2027 budget
The Foundation proposes a $43.5M 2027 operating budget — $16M stablecoins/RWA, 1,740 ETH and 230M ARB — drawn from the DAO treasury. On-chain vote opens June 8.
infrastructure
Mastercard opens card settlement to stablecoins across eight chains
Mastercard's June 3 update lets issuers settle card flows on-chain in USDC, PYUSD, USDG, USDP, RLUSD and SoFiUSD across Ethereum, Solana, XRPL and five others.
protocol
Zcash patches Orchard soundness bug with NU6.2 emergency hard fork
An under-constrained Orchard circuit could have minted undetectable counterfeit ZEC. Zcash froze the pool with a June 2 soft fork, then re-enabled it via NU6.2 the next day.