A method for updating personalization information associated with an updated mobile application on a communication device managed by an application provider computer , the personalization information comprising account-specific information associated with a user, the method comprising: receiving, by a server computer , a migration notification from the application provider computer to initiate updating of the personalization information for a mobile application , the migration notification including device identification information, applet identification information, and application version information for the mobile application installed on the communication device by the application provider computer ; identifying, by the server computer , an account associated with the migration notification using the device identification information and the applet identification information; identifying, by the server computer , a current personalization profile associated with the mobile application using the received application version information; identifying, by the server computer , an updated personalization profile associated with the updated mobile application; determining, by the server computer , partial personalization information associated with a difference between the current personalization profile and the updated personalization profile; generating partial personalization scripts including the partial personalization information for updating the personalization information stored in the mobile application of the communication device ; and providing, by the server computer , the partial personalization scripts to the application provider computer for installation on the communication device , wherein the mobile application is suspended until the partial personalization scripts are installed on the communication device when said updating addresses a security issue. receiving, by a server computer , a migration notification from the application provider computer to initiate updating of the personalization information for a mobile application , the migration notification including device identification information, applet identification information, and application version information for the mobile application installed on the communication device by the application provider computer ; identifying, by the server computer , an account associated with the migration notification using the device identification information and the applet identification information; identifying, by the server computer , a current personalization profile associated with the mobile application using the received application version information; identifying, by the server computer , an updated personalization profile associated with the updated mobile application; determining, by the server computer , partial personalization information associated with a difference between the current personalization profile and the updated personalization profile; generating partial personalization scripts including the partial personalization information for updating the personalization information stored in the mobile application of the communication device ; and providing, by the server computer , the partial personalization scripts to the application provider computer for installation on the communication device , wherein the mobile application is suspended until the partial personalization scripts are installed on the communication device when said updating addresses a security issue. <EOS>