You can find e.g. the name of the CTO of Fog Creek. It's FizzBuzz-level difficulty or less.
You can find e.g. any published work of Thomas Ptacek to bond over. You didn't have to run into him at Black Hat, or even know that he has spoken at Black Hat, to find a video of him speaking at Black Hat.
You may not know who is in charge of Fraud at Square. You know who probably knows? Well, to a first approximation, any engineer there should (or be able to find it out trivially). Can you find any engineer at Square?
We have the good fortune to be in an industry where people are hyper-connected, publicly identified, and Internet routable. Use these facts to your advantage when looking for a job.