After the Affordable Care Act went into effect I signed our company up for our state's marketplace. While browsing our plan options, I noticed the url used a scheme like marketplace.org/employers/341/plans.aspx. Of course, I tried changing the number in the url to 342 to see what happened. To my astonishment, it loaded up the next company's plans, including a list of employee names, ages, plan cost, and SSNs. After I…
EDIT: Remembering it now, there were also email addresses with the Iranian navy as they coordinate with other navies to fight piracy too. Perhaps instead of sending a Rickroll I could have sent a mass email with Lennon's "Give Peace a Chance."