Today, electronic information has become the most important asset for society, forcing people to use different means for storing, processing and secure, thus preventing theft of information or a computer attack. Unfortunately, as well as means or tools for information emerge, there are also tools against it, which allow altering it, delete or steal according to the purpose of the hacker attack, violating completely the general principles of information (confidentiality availability and integrity). It is there where computer forensics takes care of identifying and analyzing the evidence of computer crime or prevent it, if it has not happened yet. What society cannot imagine is that with the evolution of technology, and considering that currently everything is handled through electronic devices, computer crimes are increasing and are more common than they are now in Colombia, for this reason with this article is intended to show the importance of computer forensics, its tools, processes and how in Colombia is being implemented by a real case.