• RevokeCash enables auto-revoking.

• EF researcher joins Ethlabs.

• DV Labs winds down Aztec sequencer.

• Ostium suffers a $23.7m hack.

• Polygon Labs announces layoffs.

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Revoke.cash, a leading interface for revoking token approvals, introduced Auto-Revoking as part of a new Revoke Ultimate paid subscription tier. The feature adds automated protection against malicious token approvals, eliminating the need to to manually check and revoke token approvals after learning of an exploit. Auto-Revoking leverages MetaMask's implementation of the ERC-7715 permission standard. Users can grant Revoke.cash a scoped permission that can only revoke approvals. It cannot approve tokens, move funds or sign messages, and it can be withdrawn at any time.

Perpetuals protocol Ostium suffered a hack resulting in a loss of about $23.7 million. The hack is believed to have stemmed from a compromised oracle-signer key, which the attacker used to drain the protocol's OLP vault. The attacker swapped the stolen USDC for 12,084 ETH at an average price of $1,966 and has been routing large portions through Tornado Cash. The OLP vault held about $9 million as of the latest community reporting, down 72.5% from $32.7 million before the attack. Ostium says user positions remain open and unmodifiable, and trader margin remains untouched in the frozen contracts.

Ethereum Foundation protocol researcher Francesco D'Amato has left the EF to join Ethlabs, where he will continue protocol R&D with a particular focus on accelerating Ethereum's finality time. At Ethlabs, D'Amato will work alongside other former EF colleagues, with the goal of building a team capable of contributing to protocol R&D outside the EF itself. Fast finality remains his stated near-term priority, continuing the direction he's pursued in recent research.

DV Labs, the proof-of-stake infrastructure team formerly known as Obol Labs, is winding down its Aztec sequencer, citing operational costs that outweighed returns. The sequencer, which it has run since genesis, will stop proposing on August 14, with the team fully exiting on August 15, 2026. The team said returned stake fell 1–5% short of expectations. AZTEC token holders that have delegated their stake DV Labs are urged to initiate undelegation from their own wallets at stake.aztec.network by August 5 to allow the roughly nine-day unbonding period to complete before the August 15 exit.

Polygon Labs CEO Marc Boiron announced layoffs as part of a broader restructuring tied to its pending acquisition of Coinme, a fiat-to-crypto on- and off-ramp provider licensed in 48 U.S. states. Polygon Labs now focusing on operating as a blockchain-enabled payments company. Leadership framed the layoffs as a structural change driven by different needs from the new focus. The Coinme acquisition is in its final stages and will see that team integrated into Polygon Labs as part of a wider merger effort.

• ACDE #246 summary.

• Glamsterdam devnet 7 testing.

• Splits shared eng team wallets.

• Base request for builders.

• RevokeCash releases Premium.

• L2BEAT native rollups page.

• Etherealize joins Crypto Council.

• Pendle releases PT loops.

• ZKsync B2 token filing.

• Bitmine July message.

• BarnBridge exploit explained.

• 1inch co-founder was fired.

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