I count thirteen instances (using CTRL+F) of ''security'' in text, plus 1 in text in a side-box, and 2 instances in picture form. So somewhere between 13 and 16. Have tried all these in number and letter form with no luck. The answerbox has space for 17 digits....ie 2 8-bit words and a space, but converting 1 - 3 to binary gives 00110001 00110011 which doesnt work.... neither for 14,15,16 conversions etc. I looked into converting to ECC200 in a 16x16 matrix but can't see how this data is useful, the matrix for 13 is wildly different (covering the whole 256 squares) than the one for 14, so I can't see it working.
Kinda stumped now