Cadbury
Capability
Capability Maturity Model [CMM]
Capacity stress testing
Capital expenditure/expense [CAPEX]

Card swipe
Cathode ray tube [CRT]
Central processing unit [CPU]
Centralized data processing
Certificate (Certification) authority [CA]
Certificate revocation list [CRL]
Certification practice statement [CPS]

Chain of custody
Challenge/response token
Change management
Channel service unit/digital service unit [CSU/DSU]

Chargeback
Check digit
Check digit verification (self-checking digit)
Checklist
Checkpoint restart procedures
Checksum
Chief executive officer [CEO]

Chief financial officer [CFO]
Chief information officer [CIO]
Chief Information Security Officer [CISO]
Chief Security Officer [CSO]
Chief technology officer [CTO]
Cipher
Ciphertext
Circuit-switched network
Circular routing
Cleartext
Client-server

CoCo
Code of ethics
Coevolving
Coherence
Cohesion
Cold site
Collision

Combined Code on Corporate Governance
"Common Attack Pattern Enumeration and
Classification" [CAPEC]
Communication processor
Communications controller

Community strings
Comparison program
Compartmentalization
Compensating control
Competence
Competencies
Compiler

"Completely Automated Public Touring test
to tell Computers and Humans Apart"
Completely connected (mesh) configuration
Completeness check
Compliance
Compliance documents
Compliance testing
Component
Comprehensive audit
Computationally greedy

Computer emergency response team [CERT]
Computer forensics
Computer sequence checking
Computer server
Computer-aided software engineering [CASE]
Computer-assisted audit technique [CAAT]

Content filtering
Context
Contingency plan
Contingency planning
Continuity
Continuous auditing approach
Continuous availability

Continuous improvement
Control
Control center
Control framework
Control group
Control objective
"Control Objectives for Enterprise
Governance"
Control perimeter

Control practice
Control risk
Control risk self-assessment
Control section
Control weakness
Cookie
Corporate exchange rate

Corporate governance
Corporate security officer [CSO]
Corrective control
COSO
Countermeasure
Coupling
Coverage
Crack

Credentialed analysis
Criteria
Critical functions
Critical infrastructure
Critical success factor [CSF]
Criticality
Criticality analysis
Cross-certification

Cybersecurity architecture
Cyberwarfare