lull (one) into (something)

To cause one to fail to be aware of the risks, dangers, or true reality of a situation. Installing cameras at home lulled me into a false sense of security—our house still ended up getting robbed. A: "I can't believe you were able to unseat the valedictorian!" B: "I think three years of accolades lulled her into complacency."

Deceive into trustfulness, as in The steadily rising market lulled investors into a false sense of security. The earliest recorded version of this term referred to wine: "Fitter indeed to bring and lull men asleep in the bed of security" (Philemon Holland, Pliny's Historie of the World, 1601. Today it still often appears with the phrase a false sense of security.