Zano Rolls Back a Month of Blockchain History After Gateway Exploit

By Isaac • September 27, 2026 11:12 pm •

Zano has taken one of the most disruptive recovery steps available to a blockchain: it restarted the network from a checkpoint that erases roughly a month of chain history.

The move follows a Gateway Address vulnerability that allowed unauthorized ZANO and Freedom Dollar, or fUSD, to enter circulation. The recovered chain begins at block 3,833,000, immediately before Hard Fork 6 activated the affected feature.

In a detailed update, Zano said the restart removes the unauthorized activity but also means legitimate transactions confirmed during the affected period are no longer part of the recovered chain. Users and businesses were told to retain transaction IDs and trade records and to check final status before resending any payment.