A token leaks. A bad package slips in. A login trick works. An old tool shows up again. At first, it feels like the usual mess. Then you see the pattern: attackers are not always breaking in. They are ...

19-year-old Samrath Singh Chadha's story is one of passion for computers and AI, and an amazing capacity for persistence. He's been selected to the Y Combinator and Z Fellows accelerator programmes.