Define "cybersecurity".

The definition of "cybersecurity" is accurately captured by the concept of protecting systems, networks, and data from digital attacks. This field encompasses various strategies and technologies aimed at safeguarding electronic devices, networks, and data from unauthorized access, damage, or theft.

Cybersecurity is essential in today's digital world because the frequency and sophistication of cyber threats are continually increasing. By implementing measures such as firewalls, encryption, and multi-factor authentication, organizations can create a defensive posture against potential breaches. This focus on protection is what distinguishes cybersecurity from other concepts.

The other options provided do not relate to the core definition of cybersecurity. The development of software applications is a separate area known as software engineering. Analyzing data to improve business performance relates more to data analytics or business intelligence rather than security. Configuring hardware devices refers to the setup and management of physical technology, which, while important, does not specifically address the overarching aim of protecting against cyber threats.