Cloudflare estimates 15-40 years[1]. Cloudflare, Google [2], Amazon [3] and others are all at various phases of moving to post-quantum algorithms. My own lesso

Cloudflare estimates 15-40 years[1]. Cloudflare, Google [2], Amazon [3] and others are all at various phases of moving to post-quantum algorithms. My own lesson from the Snowden revelations is that if we're close enough to a security break that the possibility is well understood, there's a very high chance someone is already doing it. [1] https://blog.cloudflare.com/post-quantum-for-all/ https://blog.cloudflare.com/post-quantum-for-all/ [2] https://cloud.google.com/blog/products/identity-security/why-google-now-uses-post-quantum-cryptography-for-internal-comms https://cloud.google.com/blog/products/identity-security/why... [3] https://www.amazon.science/blog/preparing-today-for-a-post-quantum-cryptographic-future https://www.amazon.science/blog/preparing-today-for-a-post-q...