Core Viewpoint - The recent advancements in quantum direct communication technology by Tsinghua University’s Professor Long Guilu's team have transformed the concept from basic quantum telegrams to real-time quantum telephony, enhancing secure communication methods significantly [1][5]. Group 1: Quantum Direct Communication - Quantum direct communication utilizes the unique properties of quantum states to ensure secure transmission without the need for traditional encryption methods [3][4]. - The technology operates on the principle that any attempt to eavesdrop on the quantum state will alter it, thereby alerting the sender and allowing for immediate cessation of communication [4][5]. Group 2: Performance Improvements - In early 2025, the performance of quantum direct communication was significantly enhanced, achieving a stable transmission rate of 2.38 kbps over a distance of 104.8 km, marking a nearly 5000-fold increase compared to previous systems [5]. - This improvement allows for the reliable real-time transmission of confidential text and image information, indicating a shift from theoretical demonstration to practical application [5]. Group 3: Future Applications - Future developments aim to integrate quantum satellites for global coverage, creating a robust and secure communication strategy alongside terrestrial fiber networks [6]. - The current quantum terminal devices are primarily designed for critical sectors such as government and finance, with broader public access expected to evolve through advancements in chip technology and integration [7].