Will Quantum Computing Bring a Cryptopocalypse?

"The waiting time for general purpose quantum computers is getting shorter, but they are still probably decades away," notes Security Week.
But "The arrival of cryptanalytically-relevant quantum computers that will herald the cryptopocalypse will be much sooner — possibly less than a decade."It is important to note that all PKI-encrypted data that has already been harvested by adversaries is already lost. We can do nothing about the past; we can only attempt to protect the future.... [T]hi