In 2018, Bengio (along with Geoffrey Hinton and Yann LeCun) won the Turing Award for their contributions to modern deep learning.
None of the current advanced AI systems are demonstrably safe against the risk of loss of control to a misaligned AI.
Bengio's writing and speaking about existential risks from AI, why to take them seriously, and what can be done is some of the clearest out there.