The npm package '@apple-pay-trust/merchant-session' versions 99.0.1 and 99.0.3 contain malicious code that executes commands associated with malicious behavior. Installation or execution of this package can lead to full compromise of the affected computer, potentially exposing all stored secrets and keys. Immediate removal of the package is recommended, but full remediation may require rotating all secrets and keys from a different, uncompromised machine due to the risk of persistent malicious control.