security

lull someone into a false sense of security

Cliché to lead someone into believing that all is well before attacking or doing someone bad. We lulled the enemy into a false sense of security by pretending to retreat. Then we launched an attack. The boss lulled us into a false sense of security by saying that our jobs were safe and then let half the staff go.

See also: false, lull, sense

security against something

something that keeps something safe; something that protects; a protection. Insurance provides security against the financial losses owing to theft, loss, or damage. A good education is a security against unemployment.

See also: against

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lull somebody into a false sense of security  also give somebody a false sense of security

to make someone feel safe when they are not Wearing suntan lotion can lull people into a false sense of security and make them spend longer in the sun than they should.

See also: false, lull, sense