How about this one from October 2013 where a 25-year old woman gets talked into doing a body shot in a bar and ends up getting fingered by her boss while lying on the bar? http://geekfeminism.wikia.com/wiki/Codemash_sexual_assault
That's when limiting myself to bar-related incidents in direct technology events. If you include conferences here's a full on attempted rape from last year: https://web.archive.org/web/20130627000201/http://georgiawei...
I'm even excluding the comic cons because they're arguably not that tech-related but harrasment there seems even more prevalent.
Notice how they also all refer to archive links? That's due to a mix of for fear of the consequences of having these posts be at the top of Google when searching for the victims name and straight-up libel suits being initiated by the perpetrators.