Software engineer Vishnu Mohandas decided he would quit Google in more ways than one when he learned the tech giant had briefly helped the US military develop AI to study drone footage. In 2020, he left his job working on Google Assistant and also stopped backing up all of his images to Google Photos. He feared that his content could be used to train AI systems, even if they weren't specifically ones tied to the Pentagon project. "I don't control any of the future outcomes that this will enable," Mohandas thought. "So now, shouldn't I be more responsible?" Mohandas, who taught himself programming and is based in Bengaluru, India, decided he wanted to develop an alternative service for storing and sharing photos that is open source and end-to-end encrypted.

For more than 100 years, recording people's fingerprints has involved them pressing their fingertips against a surface. Originally this involved ink but has since moved to sensors embedded in scanners at airports and phone screens. The next stage of fingerprinting doesn't involve touching anything at all. So-called contactless fingerprinting technology uses your phone's camera and image processing algorithms to capture people's fingerprints. Hold your hand in front of the camera lens and the software can identify and record all the lines and swirls on your fingertips.