The detecting method includes: obtaining a testing signal, perform at least one action according to the testing signal, and transmit a request instruction comprising the testing signal; determining that whether the testing signal of the request instruction represents performing a testing mode by a processor; if the processor determines that the testing signal of the request instruction represents performing the testing mode, the processor requests a testing service device to provide at least one service corresponding to the request instruction; collecting a performing order when the processor performing the at least one action and a performing result of each one of the at least one action, and combine the performing order and the performing result as a to-be classified data; and calculating a detecting result according to the to-be classified data, wherein the detecting result represents that whether a snow ball effect will occur.