ZEC plunges 42% after security flaw rocks network

Arthur Hayes, investment manager at Maelstrom Fund, revealed that he sold his entire ZEC position after a potentially critical security vulnerability was disclosed in Zcash’s Orchard Pool component. Hayes said the sharp price drop following the security news led him to reassess his investment thesis in the project.

Undetected flaw stunned community

According to information released by Shielded Labs, a significant bug went undetected in the Zcash network for four years. The organization explained that this vulnerability could theoretically allow malicious actors to mint an unlimited number of counterfeit tokens. Such a scenario could severely undermine trust in Zcash’s supply and erode the asset’s market value.

Glossary: The Orchard Pool is a key component supporting shielded transactions on the Zcash network. Shielded Labs is a development team within the Zcash ecosystem focused on privacy-centric technologies.

The flaw was detected on May 29 and resolved by June 1. However, the announcement triggered a dramatic selloff, with ZEC plunging 42% in just 24 hours as traders reacted swiftly to the news.

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Arthur Hayes explained that he learned about the security flaw the previous day but did not immediately grasp its full impact on his investment framework. Only after a 30% drop did he decide to exit his entire position and take profits while he could.

Hayes signals possible future return

Hayes, who is also a co-founder of BitMEX, stated that he plans to reassess his view on Zcash going forward. He indicated that if his assumptions turn out to have been incorrect, he might consider buying into ZEC again, preferably at lower prices. Maelstrom is recognized as an investment fund with a focus on digital assets.

Blockchain intelligence firm Arkham also reported on X that a major investor holding $174 million worth of ZEC saw more than half of that position’s value wiped out. Notably, Arkham stated that this wallet had not offloaded any ZEC over the past six months.

According to Arkham, the large investor with the $174 million ZEC holding lost more than half the asset’s value, and no sales had been made from this address in half a year.

Confidence crisis overshadows fix

Although the vulnerability was patched, the fix was not sufficient to ease short-term price pressure. The timing of the disclosure and the potential magnitude of the issue have prompted investors to be far more cautious, especially regarding supply security. The conversation has shifted from purely technical risk to broader implications for market confidence.

Market watchers are now keeping a close eye on further technical disclosures from the Zcash ecosystem and on potential position changes among large holders. For the moment, sentiment appears focused less on the fact that the vulnerability was fixed, and more on the unsettling realization that it went undiscovered for so long.