My response has always been to start at the CIA Triad (also referred to as the CIA Triad Principles). The Triad is a strong fundamental approach on how we handle and protect data, systems or other valuable assets. The CIA Triad stands for Confidentiality, Integrity and Availability. Think of it as part of an equilateral triangle where all sides are equal and no one principle is more important than the other. It only takes one side to fall in order for the contents inside the triangle to be exploited.
As you progress in your cybersecurity journey, you will often refer back to these principles to determine how an asset can be better protected or risk better mitigated. Let’s dive in further into the CIA Triad security model.
Confidentiality (privacy) is assuring the correct person(s) have access to the material or data while it is in-transit, at-rest or processing. This can be achieved by a variety of primary controls including: Two-Factor/Multifactor Authentication (2FA/MFA), Encryption, Access Controls, Classification, Watermarking and more.
What are the threats to Confidentiality?
Things that threatened confidentiality include (but are not limited to): Human Error, Weak Passwords, Lack of Strong Encryptions. Eavesdropping (including Dumpster Diving) and Insider Threats.
Integrity is assuring that the data or systems cannot be altered or destroy by unauthorized person(s). This can be achieved by a variety of primary controls including (but not limited to): Hashing, Auditing, Setting File Permissions, Backups and Message Digests.
What are the threats to Integrity?
Things that threatened Integrity include (but are not limited to): Data Diddling, Human Error, Vulnerable Software, Insider Threat and Ransomware.
Availability is assuring that the data can be accessed by authorized person(s) whenever requested. This can be achieved by a variety of primary controls including (but not limited to): Firewalls, Load Balancers, Uninterruptable Power Supplies (UPS), Business Continuity Plan and Disaster Recovery Plan (BCP/DR) and Backups.
What are the threats to Availability?
Things that threatened Availability include (but are not limited to): Human Error, Default Passwords (on security appliances), Power Outages, Natural Disasters, Ransomware and Insider Threats.
Below is a more in-depth video of the CIA Triad. It will cover things in greater depth as well as a few extra tips that are not outlined on this blog.
Be sure to have a firm grasp on the CIA Triad and if you have any questions or suggestions, please feel free to reach out to me.
For over 20 years, I have had the distinct opportunity to work in the Information Technology space under a variety of distinct roles.
My unique position has helped me become a risk management Maven for Fortune 500 and Small Business Companies around the world. For the last 12 years, I have assisted Small Business Owners and Insurance Agency understand the impacts of Cyber Incident exposures and what steps to take to help mitigate potential data breaches.
My desire to expand my reach related to cyber security has led me to establish the Sage Knows IT blog as a way to help Small Business Owners and aspiring Information Technology (I.T.) Professionals better understand the road-maps of I.T. through the experiences I have had.
Information Technology and Information Security is the future of our world and I hope this blog will inspire those that are interested in joining our ever involving field.