Question juridique clé
Whether the applicants had standing to challenge the cantonal mutual legal assistance decision
Solution extraite
Only persons personally and directly affected by the mutual legal assistance measures may appeal; mere economic interest or being named in the foreign investigation is insufficient.
Motifs extraits
The account holders were the two companies, not the applicants. B.________ was neither account holder nor economically entitled. A.________ and C.________ failed to prove the alleged liquidation of the companies with official evidence, so no exceptional derivative standing arose.