They're working with a quantum safe research team from Wollongong Uni to create a quantum safe key. The whole scheme by itself is based on shamir SS that is quantum safe.

The multi-party-computation and zkps used to generate the keys, authenticate to them, encrypt / decrypt and sign with them are PQ resilient. The key presentation layer (i.e. the key standard we've currently deployed) are elliptic curve based, so in theory would be susceptible. We're already working on other key presentations, including PQC algorithms, all handled in multi-party. We're already able to manage SSH keys in the Fabric.