surreptitious

It was suggested it had been conducted by the UK to be able to blame Russia "as part of a sort of bizarre and surreptitious intelligence operation of some variety", he added.

For the defense, the government’s surreptitious recordings were hard to overcome.

If she didn’t act quickly, she would have to make a far more perilous, surreptitious journey over land to settle with her sister in Dallas.

Those seconds can come from a voicemail, social media post or surreptitious recording, Farid said.

Not to mention the scourge of every bookstore: surreptitious photo-snappers who later shopped online.