At 23, a youth from urban India would be expected to be in the final year of his professional degree course and vying for campus placements. But Trishneet Arora has much bigger dreams. A school dropout, Arora is now a cyber security expert, an author and the founder and CEO of TAC Security\u2014an IT security company. \u201cI had invested the formative years of my career in the sector and soon was able to establish myself as a cyber-security expert and an ethical hacker,\u201d says Arora. \u201cAs I realised my calling and started to take it seriously, I also realised that cyber security is a rapidly growing industry.\u201d Arora founded TAC Security in 2013 when he was 19. The start-up helps identify, forecast, resolve and mitigate customers\u2019 cyber security risks and challenges. With the underlying motto of \u201cHack it yourself, before you get hacked!\u201d TAC provides vulnerability assessment solutions \u2014identifying, quantifying, and prioritising the vulnerabilities in network infrastructure. The venture already works for clients such as Reliance Industries, Gujarat Police, Punjab Police, International Tractors (Sonalika), Amul, Avon Cycles and Central Bureau of Investigation (CBI) among others. It has worked closely with the Punjab and Gujarat police departments helping them resolve many cyber-crime cases and training them on cyber-crime security. TAC recently closed its pre-Series A funding from businessman Vijay Kedia. It plans to close its Series A funding of $10 million within this financial year. The start-up is planning to expand its business in North America, UAE, Singapore and UK. Additionally, TAC is already working on IoT (Internet of Things) security. Talking about the opportunities in the cyber security space, Arora says the global cyber security market is projected to grow from $122.45 billion in 2016 to $202.36 billion by 2021, at a compound annual growth rate (CAGR) of 10.6%. \u201cWe believe that the next world war will be won online, and that India\u2019s cyber security experts will have a major role to play. In India, the demand for cyber security professionals and experts is on a continuous rise and companies are willing to offer them as much as R80 lakh per annum as remuneration,\u201d he says.