Binance plans to begin restoring cryptocurrency withdrawals Sunday following a cyberattack that affected an estimated $6.3 billion in assets, with the exchange saying it has replenished approximately 95% of the affected amount.

For investors, the reopening represents a test of Binance’s ability to restore confidence after one of the largest reported cryptocurrency security breaches. The incident has raised concerns about operational security and counterparty risk across the digital asset industry, while the exchange’s efforts to replace stolen assets could help limit losses for customers and broader market disruption.

Binance disclosed Friday that the attack affected approximately $6.3 billion in assets, with an initial investigation…