The crypto industry is on high alert following the resurfacing of a data breach that exposed the email addresses of over seven million OpenSea users, including notable figures like Binance's former CEO, Changpeng Zhao. Security experts warn that this leak significantly heightens the risk of phishing attacks, urging users to adopt strong security measures such as unique passwords and two-factor authentication. The breach, linked to an employee mishandling data at OpenSea's email vendor in June 2022, has raised serious concerns about privacy and asset security in the sector.