Two US congressmen have written to the Government Accountability Office, demanding an investigation into whether modern computers and smartphones are still vulnerable to the Cold War-era risk of 'physical radiation eavesdropping,' bringing renewed attention to the technique of side-channel attacks. Side-channel attacks involve stealing sensitive data by analyzing physical information (such as power consumption, electromagnetic radiation, etc.) generated during device operation. The China Telecom team has achieved a breakthrough in the field of side-channel attacks, successfully implementing a differential power analysis attack against the HQC algorithm.
