covertly

She covertly checked her phone during the meeting.

The spy operated covertly to gather classified information.

He covertly slipped the key into his pocket.

The thieves entered the house covertly under the cover of darkness.

The covertly recorded conversation was used as evidence in court.

She covertly observed her coworkers to gather information.

The hacker covertly accessed the company's database.

The agent operated covertly to avoid detection by the enemy.

The undercover detective followed the suspect covertly.

The journalist obtained the information covertly to protect their source.