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Tether Controversially Blacklists Validator Address Involved in $25M MEV Exploit

Tether, the company behind the leading stablecoin USDT, has taken a controversial step by blacklisting a validator address that exploited a bug in the MEV-boost relay system, draining Maximal Extractable Value (MEV) bots of $25 million. This incident has sparked a debate within the cryptocurrency community, with some arguing that Tether’s move sets a bad precedent for decentralized finance (DeFi).

Understanding the $25M MEV exploit

The validator address in question took advantage of a vulnerability in the MEV-boost relay to outmaneuver MEV bots attempting a sandwich trade. Sandwich trading involves placing one order before the target trade and another immediately after, essentially front-running and back-running the original transaction.

In this instance, the rogue validator address backed up the MEV bots’ transactions, resulting in a loss of nearly $25 million across various digital assets. 

This exploit now holds the record for the largest MEV attack to date. Additionally, Etherscan, a popular blockchain explorer, has flagged the address for its involvement in the exploit.

Tether’s blacklisting decision raises concerns

Tether’s decision to blacklist the rogue validator address has been met with criticism from some members of the cryptocurrency community who believe the move represents a form of censorship. 

Arthur, an engineer at Kraken crypto exchange, has labeled the blacklisting as “bullshit,” arguing that MEV bots are no less nefarious in their attempts to take advantage of traders through sandwich trades.

ZachXBT, an on-chain investigator on Twitter, has suggested that Tether’s decision to blacklist the address could result from a court order. That remains mere speculation at this point. 

Industry leaders express concerns over Tether’s precedent

Jaynti Kanani, the co-founder of Polygon, has described Tether’s actions as setting a “bad precedent.” 

Meanwhile, Fastlane Labs co-founder Jordan Hagan has deemed it the “most concerning DeFi development of 2023.” 

Hagan emphasized the primary issue is Tether’s apparent willingness to block or unblock large sums based on activities occurring within the consensus layer (Beacon Chain).

MEV bots and their impact on the cryptocurrency ecosystem

MEV bots profit from accessing information about pending transactions, typically employing arbitrage strategies to capitalize on exchange price differences. 

When an MEV bot detects a planned coin purchase, it positions itself to benefit from the potential price increase resulting from its bid. By front-running the trade, the bot essentially jumps the queue and buys the currency at a lower price.

Many view the practices of MEV bots as a form of invisible tax on traders. Recently, 27 Ethereum-based projects have come together to launch MEV Blocker, an initiative aimed at minimizing the value extracted from traders by MEV bots.

As the debate around Tether’s blacklisting decision continues, the broader implications for DeFi and the role of stablecoin issuers in regulating the space remain uncertain.

The post Tether Controversially Blacklists Validator Address Involved in $25M MEV Exploit appeared first on CryptoMode.

Jerry Rolon

After working for 7 years as a Internet Marketer, Jerry now aims to explore the journalistic side of Internet. With his impeccable knowledge in this domain, he churns out some of the best news articles from the internet niche. With respect to acedamics, Jerry earned a degree in business from California State University.

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