Voyager Space and IBM have achieved a significant milestone in post-quantum security by establishing a secure communication link between Earth and the International Space Station (ISS). This demonstration utilized Voyager's Space Edge Micro Datacenter, launched to the ISS in September 2025, in conjunction with IBM's Quantum Safe Remediator software. The successful test proves the feasibility of securing satellite data, which is crucial for various applications, including national defense and weather forecasting. By leveraging post-quantum cryptography, this innovation mitigates the risks associated with quantum computer-based attacks on classical encryption methods1. The implications of this breakthrough are substantial, as it underscores the urgency of migrating to post-quantum cryptography (PQC) to ensure the long-term security of sensitive data. So what matters to practitioners is that IBM's quantum developments are accelerating the timeline for cryptographic migration, making it essential to prioritize PQC planning to stay ahead of potential quantum threats.