Indian researchers at the Raman Research Institute in Bengaluru, in collaboration with the Indian Institute of Science and the University of Calgary, have made a significant breakthrough in quantum security by developing a simplified method to generate truly random numbers using quantum computers. This approach uses a single qubit measured over time, eliminating the need for complex optical setups. Demonstrated on cloud-based quantum platforms like IBM’s superconducting-qubit system, the technique certifies randomness based on Leggett-Garg inequalities, ensuring unhackable digital security. Published in 2025, this innovation enhances cryptographic systems and provides a practical benchmark for assessing quantum hardware. The development builds on previous research, including efforts in 2022 and 2024, where the team proved the fundamental unpredictability of quantum mechanics and created nearly a million certified random bits. The new method’s accessibility marks a step forward toward widespread adoption of quantum-secure communication, with India emerging as a key player in quantum information technology and cybersecurity advancements. The research underscores the potential for India to lead in global quantum security efforts and applications.