Cc9f267dcClaimSandwich attacks on Ethereum cost traders approximately $60 million over the 12 months leading up to October 2025, according to Cointelegraph's analysis of EigenPhi data.AgreeDisagree
Cc9f267dcClaimEthereum's Glamsterdam upgrade introduces enshrined proposer-builder separation (ePBS) via EIP-7732, moving the division of labor between block proposers and builders directly into Ethereum's consensus protocolAgreeDisagree
Cc9f267dcClaimDevelopers warned that malicious builders could exploit the Sepolia testnet by repeatedly winning block auctions and withholding execution payloads because test ether is inexpensive.AgreeDisagree
Cc9f267dcClaimPrysm version 7.2.1 adds validator client flags, including `--builder-urls` and `--builder-min-bid`, to configure builders for all validators from the command line.AgreeDisagree
Cc9f267dcClaimPrysm version 7.2.1 changes the format of the builder fields 'auth_data' and 'builder_pubkeys' to accept 0x-hex values instead of base64 to match the keymanager API.AgreeDisagree
Cc9f267dcClaimThe Ethereum Economic Zone coordinates operations around Ethereum's block production under Layer 1 builder sequencing, ensuring that Layer 1 and Layer 2 transaction pieces land in the same block.AgreeDisagree
Cc9f267dcClaimEthereum developers warned that cheap or free test ether on the Sepolia testnet could allow malicious actors to create disposable builder identities and win block auctions.AgreeDisagree
Cc9f267dcClaimEnshrined Proposer-Builder Separation (ePBS), introduced via EIP-7732, separates the job of building transaction blocks from validating them within Ethereum's consensus rules.AgreeDisagree
Cc9f267dcClaimEthereum consensus developer Potuz stated that any teenager could spin up and rotate a thousand builders to disrupt Ethereum's Sepolia public test network during the Glamsterdam upgrade testingAgreeDisagree
Cc9f267dcClaimUnder the Enshrined Proposer-Builder Separation design, block builders submit bids to supply execution payloads, and the winning builder must release the underlying transactions once a proposer commits to the bid.AgreeDisagree
Cc9f267dcClaimA malicious builder could repeatedly win auctions by bidding aggressively with free test ether and then withhold transaction payloads, effectively freezing testnet traffic.AgreeDisagree
Cc9f267dcClaimEIP-7732 extends the execution-payload propagation window from approximately two seconds to around nine seconds to allow nodes more time to distribute and validate larger payloads.AgreeDisagree
Cc9f267dcClaimAn automated MEV trading bot named Yoink front-ran the attack transaction on September 15, 2026, extracting the 2,900 rsETH from the public queueAgreeDisagree
Cc9f267dcClaimThe Yoink bot paid approximately $47,000 to jump the queue, landing its transaction at position zero in Ethereum block 25980525 while the original attack transaction revertedAgreeDisagree
Cc9f267dcClaimThe attacker tipped block builder Titan 0.07 ETH to route the Notional Finance escrow drain transaction privatelyAgreeDisagree
Cc9f267dcClaimA September 2026 research paper on fair ordering reports that unfair transaction ordering and maximal extractable value have cumulatively extracted over $686 million from Ethereum usersAgreeDisagree
Cc9f267dcClaimThe Bank of International Settlements warned in June 2022 that blockchain transaction validators could use transaction sequencing to perform front-running and sandwich tradesAgreeDisagree
Cc9f267dcClaimThe AMM dynamically raises its fees in proportion to the on-chain MEV auction bidAgreeDisagree
