1. A system comprising: a host; a memory device coupled to the host, the memory device including: an array of memory cells that are coupled to sense lines; and a controller configured to control a sensing circuitry, that is coupled to the sense lines, to perform a number of operations without transferring data via an input/output (I/O) line to: calculate an error code for the data stored in the array of memory cells; and compare the error code with an initial error code for the data to determine whether the data has been modified.