I've worked in Cyber Security for 30 years, focusing on a variety of areas. I started with Operating Systems security, then moved to Network Security (TCP/IP and LAN architectures); then cryptography and PKIs; wireless network security (cell phone and 802.11 networks), enterprise architectures, mobile ecosystem security, and cloud security. Data Science is becoming a major part of the field of Cyber Security, and I find it a fascinating area with a lot of possible applications.
I currently work for the MITRE Corp., a "Federally Funded Research and Development Center" that consults for the US Government. I've previously worked for a wireless security start-up that crashed in the dot-com boom and bust (but held on for 10 years before going under :-); a network research company that got bought by a huge defense contractor; and for the US Government itself. I've been an Adjunct Professor at the University of Maryland-Baltimore County and a Visiting Professor at the US Air Force Academy. I have a B.S. in Physics from Southeastern Louisiana University, and an M.S. in Computer Science and Statistics from Purdue University (Boiler Up!!).
Fun fact: I lost on Jeopardy! To Ken Jennings, 74-game winner, in his 8th game, aired on June 11 2004. But I was the only contestant who got Final Jeopardy! right.