Podcast
Questions and Answers
What is the main principle behind Defense in Depth (DiD) strategy?
What is the main principle behind Defense in Depth (DiD) strategy?
- Relying on multiple layers of security measures (correct)
- Focusing on a single security product for protection
- Using encryption as the sole defense mechanism
- Implementing only physical security controls
Which type of security controls involves rules and procedures to govern access to internal systems and sensitive data?
Which type of security controls involves rules and procedures to govern access to internal systems and sensitive data?
- Physical security controls
- Behavior analysis
- Technical security controls
- Administrative security controls (correct)
What does least-privilege access aim to achieve?
What does least-privilege access aim to achieve?
- Implement multi-factor authentication for all users
- Focus on physical security over technical security
- Reduce the risk of data breaches by limiting user access (correct)
- Grant unrestricted access to all users for ease of operation
What is the purpose of multi-factor authentication (MFA)?
What is the purpose of multi-factor authentication (MFA)?
What does network segmentation aim to prevent?
What does network segmentation aim to prevent?
What is the premise of zero trust security strategy?
What is the premise of zero trust security strategy?
What does NERC oversee in the context of energy compliance?
What does NERC oversee in the context of energy compliance?
Which standard is responsible for the industry’s cybersecurity requirements and their impact on the smart grid?
Which standard is responsible for the industry’s cybersecurity requirements and their impact on the smart grid?
What does the BES Cyber System refer to?
What does the BES Cyber System refer to?
Which industry does PCI-DSS primarily govern?
Which industry does PCI-DSS primarily govern?
What type of transactions are within the scope of PCI-DSS?
What type of transactions are within the scope of PCI-DSS?
What must retailers safeguard to protect against information theft?
What must retailers safeguard to protect against information theft?
Which standards should be used to safeguard customer data in online storefronts according to the text?
Which standards should be used to safeguard customer data in online storefronts according to the text?
What do all industries require to satisfy their compliance standards according to the text?
What do all industries require to satisfy their compliance standards according to the text?
How long can it take to fulfill stringent compliance standards such as ISO27001 according to the text?
How long can it take to fulfill stringent compliance standards such as ISO27001 according to the text?
What does the term 'BES Cyber System' consist of according to the text?
What does the term 'BES Cyber System' consist of according to the text?
Which security approach is inherently layered?
Which security approach is inherently layered?
What is the objective of a secure system according to the text?
What is the objective of a secure system according to the text?
How is security best viewed according to the text?
How is security best viewed according to the text?
What is the comparison made between software development and security in the text?
What is the comparison made between software development and security in the text?
What is emphasized as essential throughout the programming process according to the text?
What is emphasized as essential throughout the programming process according to the text?
What does the text suggest about absolute statements of (in)security?
What does the text suggest about absolute statements of (in)security?
What does the text suggest about protection from dangers in a secure system?
What does the text suggest about protection from dangers in a secure system?
How does the text describe the relationship between vectors and security?
How does the text describe the relationship between vectors and security?
What does the text suggest about viewing security as a culture?
What does the text suggest about viewing security as a culture?
What is the distinction between layered security and integrated security?
What is the distinction between layered security and integrated security?
Why is it important to view security as a vector to follow instead of a destination to reach?
Why is it important to view security as a vector to follow instead of a destination to reach?
Why is it stated that an organization or system will never be totally 'secure'?
Why is it stated that an organization or system will never be totally 'secure'?
Why is application security considered essential throughout the programming process?
Why is application security considered essential throughout the programming process?
What does the text suggest about absolute statements of (in)security?
What does the text suggest about absolute statements of (in)security?
What does NERC oversee in the context of energy compliance?
What does NERC oversee in the context of energy compliance?
What must retailers safeguard to protect against information theft?
What must retailers safeguard to protect against information theft?
What does least-privilege access aim to achieve?
What does least-privilege access aim to achieve?
What is the main principle behind Defense in Depth (DiD) strategy?
What is the main principle behind Defense in Depth (DiD) strategy?
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Study Notes
- Defense in Depth (DiD) is a cybersecurity strategy that employs multiple layers of security products and techniques to protect networks, web assets, and resources.
- It is also known as "layered security" due to its reliance on various solutions to secure physical, technological, and administrative control layers.
- Originally derived from a military strategy, DiD is not analogous to the military but involves many products collaborating to thwart attacks and risks.
- A DiD strategy is based on the premise that a single security product cannot protect a network against every attack.
- Layered security provides redundancy, meaning if one layer is compromised, further security measures can restrict and mitigate damage to the entire network.
- Physical security controls protect IT systems, buildings, and other physical assets from risks such as tampering and unlawful access.
- Technical security controls include hardware and software to prevent data breaches, DDoS attacks, and network and application-based vulnerabilities.
- Administrative security controls involve rules and procedures to govern access to internal systems, business resources, and sensitive data and applications.
- Least-privilege access allows users access only to the systems and resources they need to perform their duties, reducing the risk of data breaches.
- Multi-factor authentication (MFA) requires multiple forms of authentication to confirm identity before granting access to a network or application.
- Encryption protects sensitive information from unauthorized or malicious parties.
- Network segmentation prevents external users from accessing internal systems and data by setting up separate wireless networks.
- Behavior analysis detects abnormal traffic patterns and attacks by contrasting user behavior with a baseline of typical behavior.
- Zero trust security is a strategy that assumes threats are always present in networks and that no one or thing should be trusted by default.
- Effective DiD requires layered security measures and integrated security procedures to safeguard against evolving cyber threats.
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