What is cybersecurity?

Cybersecurity is the practice of protecting computers, networks, systems, and data from unauthorized access, attacks, damage, or theft.

At its core, cybersecurity is about keeping three things safe (often called the CIA triad):

• Confidentiality – making sure sensitive information is only accessed by the right people
• Integrity – ensuring data isn’t altered or tampered with
• Availability – making sure systems and data are accessible when needed

What does cybersecurity protect against?

Cybersecurity defends against threats like:

• Hacking (unauthorized access to systems)
• Malware (malicious software like viruses, ransomware)
• Phishing (tricking people into revealing sensitive info)
• Data breaches (leaking or stealing confidential data)

Where is cybersecurity used?

It’s used everywhere digital systems exist:

• Personal devices (phones, laptops)
• Businesses and banks
• Government systems
• Online services (email, social media, cloud storage)