Over the last decade, humanitarian organizations have digitized many of their systems, from registering refugees with biometric IDs to transporting cargo via drones. This has helped deliver aid around the world, but it's also brought new risks to the people it's meant to protect. Tech and human rights ethicist Aarathi Krishnan points to the dangers of digitization -- like sensitive data getting into the hands of the wrong people -- and lays out five ethical principles to help inform humanitarian tech innovation.