Patent ID: 8523952

Claim:
A protection method used in a portable communication device, comprising the following steps: providing a first phone number and a first hardware identification serial number for said portable communication device; providing a designated communication device including a second phone number and a second hardware identification serial number; building a connection between said designated communication device and said portable communication device; generating a specific command according to said first phone number, said first hardware identification serial number, said second phone number and said second hardware identification serial number, wherein the generating step further comprises the sub-steps: encoding said first phone number and said first hardware identification serial number as a first command by Message-Digest algorithm 5 (MD5); encoding said second phone number and said second hardware identification serial number as a second command by Message-Digest algorithm 5 (MD5); and combining said first command with said second command into said specific command; storing said specific command into said portable communication device and said designated communication device; waiting for receiving a message by utilizing said portable communication device; determining whether said received message comprises said specific command by comparing said specific command that had been previously stored in said portable communication device with content of said received message that is presently received; and performing a protection mechanism for protecting the information stored in said portable communication device when said message received by said portable communication device comprises said specific command.