If your Zcash wallet uses NEAR Intents, each swap you make adds your shielded address to a public ledger. A quantum computer could use this to link all your payments that share the same key.
In Vizor, each swap will get its own key to prevent this.
How weโre making Zcash quantum unlinkable through the use of one-time IVKs!
In this video, I talk about how sharing your shielded address opens you up to a specific quantum attack, and how we solved this linkage for a common feature you probably exposed yourself to already.