Key Takeaways
According to CryptoSlate, Zano executed an emergency chain rollback removing a month of transactions due to a Gateway Address vulnerability.

According to CryptoSlate, Zano has executed an emergency blockchain rollback that removed approximately a month of previously confirmed transactions. The restart stems from a Gateway Address vulnerability that allowed unauthorized ZANO and Freedom Dollar, or fUSD, to enter circulation.
To finance recovery efforts, the Zano team stated it will utilize the network's developer fund, personal funds from team members, and committed contributors. However, the reported sources serve as a funding plan rather than a guarantee that all losses will be covered, and a full post-mortem remains pending.
Eligibility rules, exact payment amounts, and a claims timetable have not yet been published. The core team advised affected users that no claims action is currently required, though they should save relevant transaction IDs as well as trade and exchange records. Additionally, Zano confirmed that ZANO supply and emission will remain unchanged following the incident, and reported that wallet spend keys and ordinary transaction privacy were not compromised.
Source & Fact-Check Note
https://cryptoslate.com/zano-rollback-removes-month-of-transactions-personal-funds-recovery/

