The invention provides an
application security protection method, an application
client and an ACR
server, and the
application security protection method comprises the steps: sending application
client information to the ACR
server; receiving a random key sent by the ACR
server and a pre-stored check file
list; according to the random key and the check file
list, encrypting the check file
list togenerate a first encrypted information list; sending the first encrypted information list to an ACR server for
verification; after the ACR server passes the
verification, generating a first admissionidentifier according to the first
encryption information list and storing the first admission identifier; and when needing to be connected with the APP server, sending the first admission identifier and the application
client information to the APP server for
verification. According to the embodiment of the invention, through a dual-verification mode, a
hacker is prevented from obtaining sensitiveinformation of a user or disseminating illegal information by
cracking an application client, so that the
information security of the user is protected.