There was a standard screening call, after which they invited me to an hour-long technical interview. During this interview, they asked me about my previous experience, some information security questions, and had me solve two easy coding problems.

The initial feedback was positive. However, before scheduling the final set of interviews, they contacted me again to explain that they wouldn't be able to "guarantee relocation and visa support" due to the "ongoing crisis" and would be putting the process "on hold".

I'm writing this from the country they couldn't "guarantee relocation" to.

Explain MITM and how to prevent it.

Authenticated encryption algorithms.

Two easy Leetcode-like problems.