Microsoft Security Research Intern interview questions

Had Microsoft security research intern phone screening today- >15min phone screening round >Introduction >What do you know about security, and your work related to that? >Production grade workflow of secure user authentication. >What are public and private keys, ecryption and hashing. Real world example where public and private key are used and how are they handled. > Tell me about a real world vulnerability that recently occured. >Why do you want this role. >Generic Behavioural questions.