Cybersecurity protects internet-connected systems from cyberthreats by securing hardware, software, and data. It is used by individuals and businesses to safeguard data centers and computer systems from unauthorized access. The document discusses the advantages of cybersecurity, including protecting businesses from cyberattacks and data breaches, securing data and networks, and preventing unauthorized user access. It then provides details of a student named Shreya Hedau who is studying cybersecurity as part of her BBA program under the instruction of Professor Rekha Israni.