ZEC bounces 45% as Ironwood upgrade targets counterfeiting…

Zcash has clawed back roughly 45% from last week's low near $300, with ZEC trading around $437 on Monday after developers proposed the Ironwood upgrade to address the counterfeiting bug that triggered the sell-off. The token remains down about 22% on the week.

Why it matters

The Ironwood proposal, put forward on June 6 by Shielded Labs, the Zcash Foundation, and the Zcash Open Development Lab, would migrate users to a new privacy pool built on the patched code and permanently block new coin creation in the old Orchard pool. Critically, once Ironwood activates, anyone running Zcash software can independently tally balances across pools and confirm that no more than the correct supply of ZEC exists — no trust in developers required. Investor Chamath Palihapitiya highlighted the mechanism in his newsletter, describing it as a way to "verify the supply is clean."

Market impact

The bounce reflects relief that a credible, community-wide fix is on the table, but the 22% weekly loss underscores how severely a supply-integrity scare hits a privacy coin. The migration process itself carries a built-in forensic dimension: any counterfeit ZEC would either be exposed when attempting to exit the old pool or be stranded and destroyed, potentially revealing whether the bug — undetected since 2022 — was ever exploited. Shielded Labs says abuse is unlikely. Developers have not set a firm timeline for Ironwood, warning that building, testing, and coordinating the upgrade across the network could take longer than expected.