Zano Blocks Out Unauthorized Tokens After Gateway Exploit

Zano's blockchain was restarted at block 3,833,000 to undo roughly a month of activity after a vulnerability tied to Gateway Addresses was identified. The exploit allowed unauthorized ZANO and Freedom Dollar (fUSD) tokens to enter circulation.

The project's leadership framed the restart as a tradeoff between immediate disruption and long-term credibility. Quinten van Welzen, head of marketing and growth, argued that 'doing nothing' would have meant unauthorized ZANO and fUSD remaining in circulation indefinitely, diluting holders and undermining the idea of a fixed supply.

The team says transactions and token activity that occurred during the compromised period will no longer appear on the recovered chain. However, it also warns that the rollback cannot reverse payments that were already settled on other blockchains.