Counterscry

You can attempt to disrupt the process of somebody magically spying on you, as long as you have a means of seeing invisible things.  You can cast this spell by targeting an invisible sensor that you can see via truesight or some other means.  The caster linked to that invisible sensor must succeed on an Intelligence saving throw or lose concentration on their spell.  Additionally, you learn enough information about that caster that you become familiar with them for the purpose of casting your own scrying spell.  This information includes things such as their name, their appearance, where they sleep, and what level spellcaster they are.  You can learn additional things at the DM's discretion, such as creatures near the spellcaster when they lost concentration, where they were, etc.