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Blockchain Security Fundamentals

Learn about blockchain security basics and some advanced concepts
(28 reviews)
2,122 students
Created by


CourseMarks Score®







Platform: Udemy
Video: 3h 40m
Language: English
Next start: On Demand

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Detailed Analysis

CourseMarks Score®

7.5 / 10

CourseMarks Score® helps students to find the best classes. We aggregate 18 factors, including freshness, student feedback and content diversity.

Freshness Score

6.6 / 10
This course was last updated on 3/2019.

Course content can become outdated quite quickly. After analysing 71,530 courses, we found that the highest rated courses are updated every year. If a course has not been updated for more than 2 years, you should carefully evaluate the course before enrolling.

Student Feedback

6.3 / 10
We analyzed factors such as the rating (3.6/5) and the ratio between the number of reviews and the number of students, which is a great signal of student commitment.

New courses are hard to evaluate because there are no or just a few student ratings, but Student Feedback Score helps you find great courses even with fewer reviews.

Content Score

9.0 / 10
Video Score: 8.1 / 10
The course includes 3h 40m video content. Courses with more videos usually have a higher average rating. We have found that the sweet spot is 16 hours of video, which is long enough to teach a topic comprehensively, but not overwhelming. Courses over 16 hours of video gets the maximum score.
Detail Score: 9.3 / 10

The top online course contains a detailed description of the course, what you will learn and also a detailed description about the instructor.

Extra Content Score: 9.5 / 10

Tests, exercises, articles and other resources help students to better understand and deepen their understanding of the topic.

This course contains:

0 article.
1 resources.
0 exercise.
0 test.

Table of contents


This course will help you Identify and differentiate between security threats and attacks on a Blockchain network. Blockchain security methods, best practices, risk mitigation, and all known (to date) cyber-attack vectors on the Blockchain will be covered. You will also learn how to perform a Blockchain network security risk analysis and glean a complete understanding of Blockchain’s inherent security features and risks.

•Gain an understanding of why Blockchain Security is important.
•Gain an understanding of how security in blockchain is approached.
•Learn about different Blockchain technology around security.
•Hyperledger Fabric, Ethereum and Corda blockchain platforms.

Course Modules are as follows
1 Course Overview 2 Blockchain Basics 3 Blockchain Consensus Algos 4 Smart Contracts and Chaincode 5 Development Best Practices in Security Blockchain Security Advanced Concepts 6 Cryptography and Hashing 7 Permissioned Blockchain Membership 8 Blockchain Channels 9 IAM 10 Permissioned vs Permissionless 11 Trust or Trustless Blockchain Risk Management 12 Risk Assessments 13 Risk Mitigation Blockchain Audits 14 Blockchain Benefits for Compliance 15 Compliance Requirements Vulnerabilities and Vulnerability Remediation 16 Known Vulnerabilities 17 Vulnerability Remediation Blockchain Platform Security Considerations 18 Hyperledger Fabric Considerations 19 Ethereum Blockchain Considerations 20 Corda Blockchain Consideration 21 Demo Hashing 22 Demo IBM 23 Demo Corda DemoBench 24 Demo MetaMask Course Review 25 Certification 26 Review of Course
Happy Blockchaining!

You will learn

✓ What are blockchain security best practices
✓ What are common Vulnerabilities
✓ What are ways to remediate vulnerabilities
✓ How to perform an assessment
✓ Threats in Hyperledger deployments
✓ Threat in R3 Corda Deployments
✓ Threats with Ethereum platform based deployments
✓ Development best practices


• None
• Would be helpful if student had prior blockchain knowledge but not needed.
• Wanting to obtain a certification as well would be helpful

This course is for

• Any one wanting to understand the fundamentals of blockchain security
• Anyone interested in advancing careers
• Anyone who wants to understand common best practices around security

How much does the Blockchain Security Fundamentals course cost? Is it worth it?

The course costs $19.99.

Does the Blockchain Security Fundamentals course have a money back guarantee or refund policy?

YES, Blockchain Security Fundamentals has a 30-day money back guarantee. The 30-day refund policy is designed to allow students to study without risk.

Are there any SCHOLARSHIPS for this course?

At the moment we could not find an available scholarship for Blockchain Security Fundamentals.

Who is the instructor? Is Joseph Holbrook (The Cloud Tech Guy) a SCAM or a TRUSTED instructor?

Joseph Holbrook (The Cloud Tech Guy) has created 40 courses that got 3,739 reviews which are generally positive. Joseph Holbrook (The Cloud Tech Guy) has taught 108,122 students and received a 4.0 average review out of 3,739 reviews. Depending on the information available, Joseph Holbrook (The Cloud Tech Guy) is a TRUSTED instructor.
Cloud Computing and Blockchain Architect/Blogger/Trainer
Joe Holbrook is based out of Jacksonville, Florida and is the owner of TechCommanders.  Joe has lived and worked in cities such as Boston, San Jose, San Diego, Washington, DC and Charleston, SC.  

Joe is an avid traveler and has been in over 42 countries… He is married with one child. He is a big hockey fan and enjoys a good beach day.

Joseph Holbrook has been in the computer field since 1993 when he was exposed to several HPUX systems on board a US Navy flagship. He has migrated from UNIX world to Storage Area Networking(SAN) and Enterprise Virtualization and Cloud Architecture. He worked for numerous companies like HDS, 3PAR, Brocade, HP, EMC, Northrup Grumman, ViON, Ibasis dot net, Chematch dot com, SAIC, Signature Consultants, Global Knowledge and Dimension Data.

Joe is the author of “Architecting Enterprise Blockchain Solutions” amd several other books.

I wish you much success in your careers! 

Joe Holbrook


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CourseMarks Score®







Platform: Udemy
Video: 3h 40m
Language: English
Next start: On Demand

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