a hypothetical, future quantum computer would be able to retrospectively decrypt any internet communication that was recorded today, and many types of informati

a hypothetical, future quantum computer would be able to retrospectively decrypt any internet communication that was recorded today, and many types of information need to remain confidential for decades. Thus even the possibility of a future quantum computer is something that we should be thinking about today. Uh-oh. Apparently not even Perfect Forward Secrecy can protect against this: https://en.wikipedia.org/wiki/Forward_secrecy#Attacks https://en.wikipedia.org/wiki/Forward_secrecy#Attacks