Smart Contract Security Course

This course introduces smart contracts and describes common flaws that occur when implementing them.

1 hour, 43 minutes

Course description

Smart contract platforms are an extension of the original blockchain design, enabling fully functional programs to run “on the blockchain.” This course describes what a smart contract is and explores programming vulnerabilities that exist because a smart contract is a program, runs on a blockchain or is implemented on the Ethereum smart contract platform.


Course Recap

Video - 00:02:00

This video reviews the information covered in this course and introduces the next one.
Ethereum Vulnerabilities

Video - 00:31:00

This video describes smart contract vulnerabilities which are unique to the Ethereum smart contract platform.
Blockchain Vulnerabilities

Video - 00:36:00

This video discusses the smart contract vulnerabilities which exist because these programs run on a blockchain platform.
General Programming Vulnerabilities

Video - 00:20:00

This video introduces smart contract vulnerabilities which exist simply because smart contracts are programs.
What are Smart Contracts?

Video - 00:11:00

This video describes the concept of the "world computer" and how smart contracts run "on the blockchain."
Course Introduction

Video - 00:03:00

This video introduces this course, providing an overview of topics to be covered.

Meet the author

Howard Poston

Howard Poston is a copywriter, author, and course developer with experience in cybersecurity and blockchain security, cryptography, and malware analysis. He has an MS in Cyber Operations, a decade of experience in cybersecurity, and over five years of experience as a freelance consultant providing training and content creation for cyber and blockchain security. He is also the creator of over a dozen cybersecurity courses, has authored two books, and has spoken at numerous cybersecurity conferences. He can be reached by email at or via his website at

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