To report a lost or stolen debit card associated with BankUnited, it is important to take immediate action to protect your account and finances. BankUnited typically provides a dedicated hotline for reporting such incidents, allowing customers to speak with a representative who can assist in freezing your card and preventing unauthorized transactions. Additionally, customers can often report their lost or stolen cards through the BankUnited online banking platform or mobile application, if they have access to those services. It is also advisable to monitor your account statements for any suspicious activity and update your account credentials as needed. For the most accurate and current information, it may be helpful to visit BankUnited's official website where you can find contact details and further guidance regarding this matter.