Summary of the eRumor
This piece of alleged history explains that in the olden days of sailing ships, cannon balls were stacked on the decks on brass plates called "monkeys." The plates had indentions in them that held the balls on the bottoms of the stacks. Brass, however, expands and contracts with the temperature and if it got cold enough, the cannon balls could fall...giving real foundation to the phrase "cold enough to freeze the balls off a brass monkey!"
According to the United States Navy Historical Center, this is a legend of the sea without historical justification. The center has researched this because of the questions it gets and says the term "brass monkey" and a vulgar reference to the effect of cold on the monkey's extremities, appears to have originated in the book "Before the Mast" by C.A. Abbey. It was said that it was so cold that it would "freeze the tail off a brass monkey." The Navy says there is no evidence that the phrase had anything to do with ships or ships with cannon balls.
dasButcher notes that the Supreme Court will hear arguments next week brought by a Nevada accounting firm that asserts the oversight board for the Sarbanes-Oxley Act is unconstitutional. If the plaintiffs are successful, it could force Congress to rewrite or abandon the law used by many companies to validate tech investments for security and compliance. "Many auditing firms have used [Sarbanes-Oxley Section] 404 as a lever for imposing stringent security technology requirements on publicly traded companies regulated by SOX and their business partners. SOX security compliance has proven effective for vendors and solution providers, as it forces regulated enterprises to spend billions of dollars on technology that, many times, doesn’t prevent security incidents but does make them compliant with the law."
Seems you fell for an urban legend: http://www.truthorfiction.com/rumors/b/brassmonke