[G7 Cybersecurity Working Group Warns of Quantum Computing Threat, Urges Swift Transition to Post-Quantum Cryptography] According to Decrypt, the G7 (comprising Canada, France, Germany, Italy, Japan, the United Kingdom, and the United States) Cybersecurity Working Group recently released a report urging governments and businesses to take immediate action to address the threat quantum computing poses to existing public-key encryption. The report highlights that while the exact timeline for quantum computers remains uncertain, recent advancements suggest they may eventually break widely used public-key cryptographic mechanisms, jeopardizing the security of digital infrastructure. Attackers could adopt a 'harvest now, decrypt later' strategy, stealing currently encrypted data to decrypt it once quantum computers become viable, and may also forge digital signatures. The G7 calls for a swift transition to post-quantum cryptography (PQC) and emphasizes that this is a collective responsibility of both the public and private sectors, requiring early planning and coordination.