Matthew Prince of Cloudflare has discussed the company's stance on the alleged NSA PRISM program, stating that they have never been approached to participate in it or any similar programs. He emphasized their policy of challenging broad subpoenas and court orders, and supporting calls for transparency by other tech companies. The author also delved into theories about how the PRISM program might work, including breaking SSL keys, but remained skeptical. Lastly, Prince highlighted Cloudflare's use of 2048-bit keys and ECDHE cipher suites to ensure secure transactions on their network.