Methods, systems and media for evaluating layered computer security products are provided. In some embodiments, the method comprises: (a) identifying portions of attack data associated with an attack; (b) linking the portions of attack data; (c) testing security products using the linked attack data, at least two of the security products using different portions of the linked attack data; (d) storing the results of the testing; (e) repeating (a)-(d) for multiple attacks; receiving information identifying a subset of the security products from a remote computing device; identifying a first set of detected attacks for each of the plurality of security product using the stored results; determining a number of attacks in a union of each of the first sets of identified attacks; determining a detection rate for the identified security products based on the union and the number of tested attacks; and causing the detection rate to be presented.