This paper presents the dimentions that defines the Information Security essentials from the authors pointof view and their experience on studying Cryptography, Steganography, controls for data integrity andexecutable components, reverse engineering attacks, information systems auditing and a set of researchingrelated with solving these problems. A critical focusing is applied for expressing the perception that aconsiderable portion of computer science community has about these dimentions. Some advances relatedwith software tamper resistance and code obfuscation techniques are discussed. El artículo presenta las dimensiones que definen los elementos esenciales de la Seguridad de la Informacióndesde el punto de vista de los autores y su expe...