Harvest Now, Decrypt Later: Preparing for the Quantum Hangover

For years, quantum computing has been framed as a future problem for cybersecurity but that’s exactly where it has stayed, sitting comfortably on a long-term roadmap. That framing is dangerously outdated.

The reality is that the quantum threat isn’t something organizations will wake up to one day. It’s already unfolding quietly in the background through what’s known as “harvest-now, decrypt-later” attacks. Adversaries are stealing encrypted data today, fully aware that once quantum capabilities mature, that data will be trivial to decrypt. The risk isn’t hypothetical, and it isn’t confined to the next decade. It’s already started.