infiltrator
nounOne who infiltrates an organization or territory; an undercover or covert agent.
Someone who takes up a position surreptitiously for the purpose of espionage.
An intruder (as troops) with hostile intent.
One who infiltrates an organization or territory; an undercover or covert agent.
Someone who takes up a position surreptitiously for the purpose of espionage.
An intruder (as troops) with hostile intent.