SAN FRANCISCO--(BUSINESS WIRE)--Bastille, the leader in enterprise threat detection through software-defined radio, has raised $27M in its latest round of funding. The Series B funding round came from Bessemer Venture Partners, Spinnaker VC, Comcast, Keel Funds, Ballentine Partners, and individual investors. The Series B brings Bastille’s funding total to date to $40M. “With billions of RF and IoT connected devices already in use, enterprises face a massive security challenge from the Internet.