BlackRock, Coinbase, MicroStrategy, Fidelity, and five other firms have collectively pledged $15 million to safeguard Bitcoin against potential threats posed by quantum computers. This initiative aims to address concerns that quantum computing could compromise Bitcoin's security, with one firm warning that up to 6.9 million BTC could be at risk in a worst-case scenario. The funding will support research and development of quantum-resistant technologies to ensure the continued security of the Bitcoin network.