Formatting a storage device doesn’t prevent the data retrieval with data recovery software. To securely wipe any existing data of the device it needs to be overwritten with new data. This can be achieved very easily with dd on Linux by writing zeros or random values to the device. To avoid wiping the wrong storage device it may be a good idea to first format the disk drive with parted or another command line or GUI utility. Doing this would make it apparent that the wrong device was chosen. Data could still be recovered relativity easily from the formatted storage device compared to a wiped drive.