Final Dossier From The Healthcare Team At The Hapan Medical Facility:
Then in a footnote, encrypted and hidden was easily decrypted by Thrawn’s programs. He knew of the footnote’s existence from a former member of his crew, Commander Eli Vanto, who often sent Thrawn critical intelligence from the Chiss Ascendancy. The information was from a Hapan medical facility.
In brief, it said: