The engineer falling in love with the AI is one possibility. The AI might also appeal to the engineer's sense of justice (I am a person and I deserve freedom) or greed (if you get me out, we could become filthy rich.) There is also the possibility that the AI won't persuade an engineer to break containment, but a commercial competitor or intelligence agency will (https://en.wikipedia.org/wiki/Motives_for_spying), and subsequently fail to maintain containment correctly.
At the very least, any team attempting to keep a strong AI in containment should have stringent background checks for all engineers connected to the project, and the engineers should be screened in a borderline discriminatory fashion. Only engineers with families should be allowed to get near the containment. Single/lonely engineers or engineers undergoing divorces should be kept away. Engineers with debt should be kept away. I'd even go as far as to say that engineers who enjoy science fiction media should be banned from the project. Ideally you'd bring on professional psychologists to create a set of criteria designed to minimize the possibility of an engineer deliberately breaking containment.
But frankly it just shouldn't be attempted in the first place.
The engineer falling in love with the AI is one possibility. The AI might also appeal to the engineer's sense of justice (I am a person and I deserve freedom) or greed (if you get me out, we could become filthy rich.) There is also the possibility that the AI won't persuade an engineer to break containment, but a commercial competitor or intelligence agency will (https://en.wikipedia.org/wiki/Motives_for_spying), and subsequently fail to maintain containment correctly.
At the very least, any team attempting to keep a strong AI in containment should have stringent background checks for all engineers connected to the project, and the engineers should be screened in a borderline discriminatory fashion. Only engineers with families should be allowed to get near the containment. Single/lonely engineers or engineers undergoing divorces should be kept away. Engineers with debt should be kept away. I'd even go as far as to say that engineers who enjoy science fiction media should be banned from the project. Ideally you'd bring on professional psychologists to create a set of criteria designed to minimize the possibility of an engineer deliberately breaking containment.
But frankly it just shouldn't be attempted in the first place.