Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 0421f2e17acc8472891fbfc7aeb80e42cb2813018f565704249fb6eacc09cd4a1373e9ebd15c01e8214a96d7f5041eb58d538dae24532227549eafae1ce49ce6ad