Ca. 1996, the DOJ web server was hacked by somebody. At this point, I don't remember the details--Adolf Hitler as AG, a naughty picture or two. It shouldn't be hard to find.
That makes for nice headlines, but anyone who actually understands this stuff knows that hacking the public-facing web server is not a big deal and not really related to obtaining private info like this.
Edit: I just remembered, there is (of course) a relevant xkcd for this: https://xkcd.com/932/