The ability to combine printed encrypted nano/micro structures and nano alpha/numeric algorithms - 'NaNOcopy'/'LogoDot' - with embedded digital hidden data, - 'digital watermark' - and/or coded UV taggents - TechMark to create the ultimate machine readable Lock - Hide a Key - Key protection for documents or packaging security is new. Extreme minute nano characters, structures, photographs, or logos, can be printed on a document in a specific pattern configured for forming an anti-copy latent warning message, which appears when copied. The NaNOcopy structures or LogoDots are uniquely micro printed to formulate certain encrypted information or algorithm calculation for further verification and protection from counterfeiting or alteration. Major companies such as IBM, Xerox, Digimark and Spectra Systems are presently offering digital watermarking technologies to secure both digital and analog content. Appleton Security Products has a VeriCam hand held reader, which can detect the combination of a substrate embedded UV coded taggent, TechMark, with the presence of other data such as a digital watermark and NaNOcopy/LogoDot printing. Unless the reader identifies the presence of the TechMark UV coded taggents, the data carrier cannot be opened.