PANews reported on February 20 that Abstract previously disclosed that its ecological application Cardex suffered a security vulnerability attack. After completing the initial security audit, its team accidentally exposed the private key of the session signer on the front end of its website. In response, Cardex published a statement on the X platform confirming that it had suffered an attack related to the leakage of session keys and is currently working with the Abstract team to track the flow and recovery of the stolen funds.