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Learner Reviews & Feedback for Blockchain Security by Infosec

4.5
stars
58 ratings

About the Course

This course introduces blockchain security, including a description of how the blockchain works at each level of the blockchain ecosystem. The instructor begins with the building blocks that create the structure of blockchain, the cryptography that it uses for security, and the role of hash functions in the blockchain and how they can be attacked. In the next module, the instructor describes what blockchain consensus is, why it’s needed, its underlying theory (Byzantine Fault Tolerance and Security via Scarcity), some of the common consensus algorithms, and the security issues inherent to each variant. The course progresses with a module that describes how blocks are created, the nodes and network that make up the blockchain ecosystem, and examples of various attacks that can be made on their security. Next the focus is on smart contracts and how their security can be compromised with vulnerabilities created by common programming errors during contract development, including in Ethereum, the most commonly used smart contract platform. Finally, the course wraps up with discussions of distributed ledger architectures that are alternatives to blockchain, second-level blockchain protocols, and advanced cryptography in blockchain....

Top reviews

HI

Jun 11, 2023

very powerful, it has ten of info. I am working as a smart contract auditor and I find a lot of info here too

Thanks

ED

Jan 25, 2024

well structured course and good experienced teachers

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1 - 15 of 15 Reviews for Blockchain Security

By Md. S K A

•

Oct 21, 2023

No practical tutorials and tasks. Only theory and understanding are not enough to learn security properly.

By Code S

•

May 9, 2024

I learned so much during this course. The course designer and instructor, Howard Poston, was easy to follow and provided valuable diagrams during his video descriptions of the blockchain security issues discussed in this course. While much of the material was complicated and it was covered in a short time, I think this course gives a great overview of the most common issues regarding blockchain security, without being overly brief or going into too much detail. I would recommend this course to everyone interested in blockchain security.

By haithem r i

•

Jun 12, 2023

very powerful, it has ten of info. I am working as a smart contract auditor and I find a lot of info here too

Thanks

By Ephrem D

•

Jan 25, 2024

well structured course and good experienced teachers

By SANTHINI R

•

Oct 12, 2024

good course with clear explanation

By Ahmed D A ( O - T A

•

Sep 5, 2024

Useful and I recommend it

By Itzel P

•

Jun 8, 2024

was a good course. thanks

By Jens G

•

Nov 10, 2023

Concise and well built

By Aaron S

•

Apr 8, 2023

Great Course to Learn

By SANATAN S

•

Apr 22, 2024

Excellent

By wandile m

•

Sep 14, 2024

Awesome

By Muzaffar A

•

Jan 15, 2024

nice

By Akalanka P

•

Jul 30, 2023

Thanks for offering this kind of course for free.l appreciate the content and got a great knowledge. Please make more clear when presenting & teaching the content

By Nouman k

•

Sep 17, 2024

great understanding of basic blockchain security

By Daniella A

•

Jun 14, 2024

This is really awful. Just someone talking. No practical learning at all.