HCL's Shiv Nadar steps down; Pegasus can hack iPhones with no clicks; and Sandeep Nailwal explains Polygon's basics (Part 1)

HCL Technologies founder Shiv Nadar has stepped down from his position as chief strategy officer and managing director, India's third biggest IT services company told the stock exchanges on Monday. The company has named Nadar as chairman emeritus and strategic advisor. CEO C Vijayakumar has been named managing director as well, for a term five years. In today's tech conversation, Sandeep Nailwal, co-founder of Polygon, explains the basics of the rising blockchain protocol