1. A method for implementing security access, the method comprising: receiving a request to perform an activity over a network; administering a cognitive test responsive to the request that includes a set of images and an instruction image to identify a cognitive pattern in the set of images, the administering including configuring the instruction image and each of the set of images to be the same size, aligning the set of images along a single axis, and randomly inserting the instruction image among the set of images and along the single axis; processing results of the cognitive test; and executing the activity when it is determined from the processing that the cognitive test has been successfully completed.