The negligence of network administrators haves let intruders affect computer systems, generating significant losses in business. The most common security threats to computer crimes are aimed at obtaining privileged access to the system through dictionary-based attacks or brute force. The research analyzes the growth curve that has experienced in the last 5 years this technique and explains why its growth and popularity, detailing its performance, implementation process and to the extent that could compromise an organization if successful. Traditional methodologies considered essential to install multiple software tools to mitigate this threat managing to control, adjust and monitor internal security policies reducing network vulnerabilities. This document is intended to reduce the chances of success and the impact caused by attacks based on dictionary, for this a test scenario was created with virtualization tools, and additionally social engineering is explained as a primary factor in the development of this attack finally necessary security stockings were implemented to mitigate this crime.
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