The invention discloses network equipment, a method for security and a computer readable storage medium. The example network equipment may include a processor to perform: obtaining data to be processed from a downstream device and communicating it to a trusted platform module (TPM); and after the TPM encrypts the data to be processed by using the cloud key stored in the TPM, receiving the encrypted data for subsequent use. The processor further performs: sending a request to a remote server to obtain the cloud key; and forwarding the acquired cloud key to the TPM for storage.