Infosectrain02
Uploaded on Aug 12, 2024
Information security risk concepts and principles are foundational to safeguarding an organization's digital assets and sensitive information. These concepts involve identifying, assessing, and managing risks that could potentially compromise the confidentiality, integrity, and availability of data. Key principles include understanding the threat landscape, recognizing vulnerabilities, and evaluating the potential impact of various risks. Implementing risk management strategies, such as risk avoidance, mitigation, transfer, or acceptance, is essential in reducing the likelihood and severity of security breaches. Additionally, establishing a strong security culture within an organization and adhering to regulatory requirements are critical components of effective information security risk management. By mastering these concepts and principles.
Information Security Risk Concepts and Principles
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e
INFORMATION SECURITY RISK
Access
Control
Confidentiality
Data EncryptionProtectin
g Integrit Validation
Informati y Checksums
on Redundan
Availability cy
Backup and
Recovery
Firewall
Networ s
k
Securit Intrusion Detection
Informati y Systems Antivirus
on Endpoi
Systems nt Device
Protectio Securit
n y Management Applicati
on Secure Coding
Security Patch
Management
Malwar
e
Threats
Phishin
Risk Software g
Event Vulnerabiliti Flaws
s es Configuration
Errors
Impacts Data Breach
Service
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CRSIC DOMAIN 1
JUSTIFICATION FOR INFORMATION SECURITY ACTIVITIES
GDP
Regulator R
y
Complian HIPA
ce A
Cost of
Financi Breach
al
Impact Fines and
Penalties
Customer
Reputation Trust
Manageme Brand
nt Value
Disaster
Business Recovery
Continui Incident
ty Response
Mature risk
management
processes can
Risk
Qualificati quantify risk Measurem
ent on
accurately.
Often difficult to
measure due to
reliance on likelihood
and impact.
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CRSIC DOMAIN 1
LIKELIHOOD (PROBABILITY)
Historical Data
Frequenc
y of Statistical
Potential
Events Analysis
Cyber
Predictive Attacks
Natural
Modeling
Disasters
Extern
al Insider Threats
Threat System Dependenc Failures
ies s
Threats Software
Intern Vulnerabilities
Vulnerabiliti al
es ThreatHardware
s
Vulnerabilities
Access Human Factors
Preventi Controls
ve Firewalls
Controls
Monitoring
Control Detecti Systems
s ve Intrusion Detection
Controls Systems
Incident
Correcti Response
ve
Controls Patch
Management
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CRSIC DOMAIN 1
FACTORS AFFECTING LIKELIHOOD
Volatility: Unpredictability of conditions
(e.g., market fluctuations).
Velocity: Speed of onset and preparation time
(e.g., natural disasters).
Proximity: Time between event occurrence
and impact
(e.g., cyber attack detection).
Interdependency: Interaction between
different risks
(e.g., supply chain disruptions).
Motivation: Determination of the threat
perpetrator
(e.g., hacktivists).
Skill: Capability of the threat perpetrator
(e.g., skilled hackers).
Visibility: Awareness of a vulnerability
(e.g., publicized software vulnerabilities).
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CRSIC DOMAIN 1
IMPACT
Loss or Compromise of
Information:
Data breaches (e.g., leaking
customer data).
Types
of
Impact
Loss or Compromise of Information
Systems:
System outages (e.g., DDoS attacks).
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CRSIC DOMAIN 1
CIA TRIAD
Definition: Secrecy and privacy
of data.
Confidentiali Examples: Need-to-know
ty principle
(e.g., masking credit card
Rneumalb-werosr)l.d Example:
Unauthorized access to PII
(e.g., healthcare
data breach).
Definition: Protection against improper
modification or destruction of data.
Examples: Error checking, least
Integrit privilege
y principle (e.g., financial data
Rinetaelg-rwityo)r.ld Example: Unauthorized
data
modification (e.g., altering financial
records).
Definition: Timely and reliable
access to information.
Examples: Business continuity,
Availabili disaster recovery (e.g., 24/7
ty availability of
e-commerce).
Real-World Example: System
downtime
(e.g., online banking outage).
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CRSIC DOMAIN 1
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