13. The system as claimed in claim 12 wherein the trigger start component is for recognizing the starting key in the plain text environment, wherein the starting key indicates to the working system that data subsequent to the starting key is hidden according to a specified hiding method; and the system including: an unhiding component for unhiding the subsequent data by the working system carrying out an inverse hiding method on the data; and wherein the trigger end component is for recognizing the ending key and ending the inverse hiding method and reading subsequent plain text.
13. The system as claimed in claim 12 wherein the trigger start component is for recognizing the starting key in the plain text environment, wherein the starting key indicates to the working system that data subsequent to the starting key is hidden according to a specified hiding method; and the system including: an unhiding component for unhiding the subsequent data by the working system carrying out an inverse hiding method on the data; and wherein the trigger end component is for recognizing the ending key and ending the inverse hiding method and reading subsequent plain text. 14. The system as claimed in claim 13 , wherein the unhiding component enables a plain text command to be carried out by the working system.