Examples describe data security and routines structured to avoid conflicts. One example includes accessing data for a merchant website including a framework with a first routine for a function, and accessing an account security element for the merchant website with a second routine associated with an account security system for the function. The second routine is optimized to avoid conflicts with the first routine. The framework is automatically updated while the second routine is maintained with no changes. The merchant website data is then transmitted with the updated first routine and the account security element with the second routine, where the updated first routine and the second routine facilitate data security on the client device without framework conflicts when the updated first routine for the function and the second routine for the function operate concurrently on the client device.