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A glossary of terms for the topic in the course An Introduction to Cybersecurity.

Here is your glossary of terms to help you navigate understanding cybersecurity.

You can refer to this glossary at any point throughout the course.


  • A distributed denial-of-service (DDoS) attack is a malicious attempt to disrupt the normal traffic of a targeted network by overwhelming it with a flood of Internet traffic
  • Domain name server (DNS) is what automatically translates internet addresses to the numbered address that computers use to direct activity.


  • Hypertext transfer protocol (HTTP)
  • Hypertext transfer protocol secure (HTTPS)


  • Internet service provider (ISP)


  • Keylogger records every keystroke made by a user


  • Open Source Intelligence (OSINT) refers to the use of publicly accessible information


  • Payload is the part of the malware that performs the attack


  • Radio-frequency Identification Device (RFID)
  • Rooting is similar to jailbreaking one’s device. It is the act of installing an application from another source


  • SSID stands for Service Set IDentifier and is your network’s name


  • Universal storage bus (USB)


  • Virtual private network (VPN)
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Cyber Security Foundations: Why Cyber Security is Important

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