MeuSec
One of the hardest concept asked in the entrance exams and interview of FAANG(Facebook , Amazon , Apple , Netflix and Google), explained in the easiest way. It also falls in the category of FANG obsessive topics because of its logical recursion replacement.
An Indian hacker/security researcher name Bhavuk Jain has earned $100,000 (around Rs.75.3 lakh) from Apple for finding and reporting a bug in the “Sign in with Apple account authentication”. It was one of the major zero-day exploit submitted to Apple in recent years.