Here’s an extended list of 100 acronyms used within CompTIA Security+ along with their full forms:

(You’ll want to be remember where these are located as your traverse the course to provide a reference when needed)

1. AAA – Authentication, Authorization, and Accounting

2. ACL – Access Control List

3. AES – Advanced Encryption Standard

4. AH – Authentication Header

5. API – Application Programming Interface

6. ARP – Address Resolution Protocol

7. BCP – Business Continuity Plan

8. BIOS – Basic Input/Output System

9. BYOD – Bring Your Own Device

10. CAPTCHA – Completely Automated Public Turing test to tell Computers and Humans Apart

11. CER – Certificate

12. CIA – Confidentiality, Integrity, Availability

13. CRL – Certificate Revocation List

14. CSRF – Cross-Site Request Forgery

15. DHCP – Dynamic Host Configuration Protocol

16. DMZ – Demilitarized Zone

17. DNS – Domain Name System

18. DoS – Denial of Service

19. DLP – Data Loss Prevention

20. DRP – Disaster Recovery Plan

21. EAP – Extensible Authentication Protocol

22. EMI – Electromagnetic Interference

23. ESP – Encapsulating Security Payload

24. FDE – Full Disk Encryption

25. FTP – File Transfer Protocol

26. GDPR – General Data Protection Regulation

27. GPO – Group Policy Object

28. HIDS – Host-based Intrusion Detection System

29. HMAC – Hash-based Message Authentication Code

30. HSM – Hardware Security Module

31. HTML – Hypertext Markup Language

32. HTTPS – Hypertext Transfer Protocol Secure

33. ICMP – Internet Control Message Protocol

34. IDS – Intrusion Detection System

35. IPS – Intrusion Prevention System

36. IRP – Incident Response Plan

37. LAN – Local Area Network

38. LDAP – Lightweight Directory Access Protocol

39. MAC – Mandatory Access Control or Media Access Control

40. MDM – Mobile Device Management

41. NAC – Network Access Control

42. NIST – National Institute of Standards and Technology

43. OTP – One-Time Password

44. PaaS – Platform as a Service

45. PGP – Pretty Good Privacy

46. RAID – Redundant Array of Independent Disks

47. RADIUS – Remote Authentication Dial-In User Service

48. RBAC – Role-Based Access Control

49. SAML – Security Assertion Markup Language

50. SED – Self-Encrypting Drive

51. SHA – Secure Hash Algorithm

52. SIEM – Security Information and Event Management

53. SIM – Subscriber Identity Module

54. SMTP – Simple Mail Transfer Protocol

55. SNMP – Simple Network Management Protocol

56. SOC – Security Operations Center

57. SPN – Service Principal Name

58. SQL – Structured Query Language

59. SSL – Secure Sockets Layer

60. SSH – Secure Shell

61. SSO – Single Sign-On

62. SSL/TLS – Secure Sockets Layer/Transport Layer Security

63. TACACS – Terminal Access Controller Access-Control System

64. TCP – Transmission Control Protocol

65. TOTP – Time-based One-Time Password

66. TPM – Trusted Platform Module

67. UDP – User Datagram Protocol

68. USB – Universal Serial Bus

69. VLAN – Virtual Local Area Network

70. VM – Virtual Machine

71. VPN – Virtual Private Network

72. VTP – VLAN Trunking Protocol

73. WEP – Wired Equivalent Privacy

74. WPA – Wi-Fi Protected Access

75. XSS – Cross-Site Scripting

76. WAF – Web Application Firewall

77. IDS/IPS – Intrusion Detection System/Intrusion Prevention System

78. PKI – Public Key Infrastructure

79. RPO – Recovery Point Objective

80. RTO – Recovery Time Objective

81. EFS – Encrypting File System

82. PBKDF2 – Password-Based Key Derivation Function 2

83. AES256 – Advanced Encryption Standard with a 256-bit key

84. CISO – Chief Information Security Officer

85. COOP – Continuity of Operations

86. CP – Contingency Planning

87. CRL – Certificate Revocation List

88. DDoS – Distributed Denial of Service

89. DNSSEC – Domain Name System Security Extensions

90. FISMA – Federal Information Security Management Act

91. Honeypot – A decoy system or network set up to attract attackers

92. IaaS – Infrastructure as a Service

93. IDS – Intrusion Detection System

94. IPsec – Internet Protocol Security

95. ISO – International Organization for Standardization

96. MTTR – Mean Time to Recover

97. NIDS – Network-based Intrusion Detection System

98. NIPS – Network-based Intrusion Prevention System

99. PII – Personally Identifiable Information

100. SSO – Single Sign-On