The police routinely catches drug dealers by selling them or buying from them drugs. This is no different. Entrapment would only be a defense if you showed that

The police routinely catches drug dealers by selling them or buying from them drugs. This is no different. Entrapment would only be a defense if you showed that absent police action you'd never do anything like that and they essentially coerced you into it. But if they know an officer is corrupt and routinely sells data to criminals, then to obtain hard evidence by staging a sting sale would be completely ok for them. In this particular case, the officer reached out to the criminal for money, so it'd be hard for him to claim he'd never done it if the police weren't involved.