title_body: Validator getting access to delegator?
upvoted_answer: It is possible to determine wallet addresses from the staking address. There is currently no way to lock a token to be redeemable only by someone who is delegating to a specific stake pool. I assume this will be possible once smart contracts are live.
  The simplest way to find other wallet addresses associated with a stake address is to look the address up on Cardanoscan. 
  If you want some details on how these addresses are derived, checkout Andrew Westberg's video here.