ByteDance Security Engineer interview questions

My interview process with ByteDance consisted of three rounds: 1. An initial phone interview with HR 2. A general coding interview 3. A security expertise interview After the third interview, I did not receive any further response from the company. The third interview experience was particularly disappointing. The interviewer rescheduled the interview twice, and during the interview itself, their attitude felt quite unfriendly and unprofessional.