cloak in secrecy
cloak (someone or something) in secrecy
To hide someone or something from another person or from public view. The residents complained that the board cloaked its decision process in secrecy, not allowing anyone to see the final plan.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
cloak someone or something in secrecy
Fig. to hide or conceal someone or something in secrecy. Patrick cloaked his activities in secrecy. The agents cloaked the spy in secrecy, making her identity a mystery.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.