Blockchain Security - Foundational Concepts (Coursera)

Offered by LearnQuest,
Blockchain Security - Foundational Concepts (Coursera)

Blockchain Security - Foundational Concepts is where your grand adventure begins, at the crossroads of technology and creativity. This course is designed for aspiring blockchain enthusiasts, developers, security professionals, and decision makers.

Class Deals by MOOC List - Click here and see Coursera's Active Discounts, Deals, and Promo Codes.

This course isn't a mere introduction; it's an invitation to explore the world of blockchain security with an artist's flair. Beyond theory's embrace, it pulls you into a universe where cryptographic techniques, smart contract development, and secure blockchain solutions aren't just words—they're a living, breathing dance guided by the hand of a master.
After completing this course, learners will be able to grasp the core elements of blockchain technology and the security that guards them, identify common security risks, detail cryptography techniques, and more.
This course is part of the Security for Blockchain and DApps Specialization.

Syllabus

Welcome and Module 1: Intro to Blockchain Security
This module provides an introduction to blockchain security concepts, threats, and challenges. Students will learn foundational knowledge about blockchain architecture, vulnerabilities, and security goals.

Module 2: Cryptography, Hash Functions, and Public Key
This module covers cryptography techniques used in blockchain including hash functions and public key cryptography. Students will learn how these are used to secure blockchain transactions and build trust. A case study on the LISK blockchain will demonstrate real-world applications.

Module 3: Consensus, PoW, and PoS Security
This module explains consensus mechanisms in blockchain, specifically proof of work and proof of stake models. Students will analyze the security implications of different consensus models and examine a case study of vulnerabilities in the Verge blockchain.

Module 4: Advanced Blockchain and Architectural Security
This module dives deeper into advanced blockchain security topics including new mechanisms, cryptography tools, and architectural security. Students will gain skills to evaluate and design secure blockchain implementations.

Module 5: The Blockchain User & Node Security
This module focuses on security for blockchain users and nodes. Students will learn how to secure user wallets, keys, and transactions. Methods to secure blockchain nodes and prevent exploits will also be covered along with a case study of an Ethereum RPC vulnerability.

Go to Class
MOOC List is learner-supported. When you buy through links on our site, we may earn an affiliate commission.

Related Courses

How to Get Into Blockchain (Coursera) Coursera
University of Leeds

How to Get Into Blockchain (Coursera)

Blockchain technologies, the driving force behind cryptocurrencies, have the potential to revolutionise the exchange of value, ownership and transactions by providing trust, security and transparency. The blockchain industry is booming and it's projected to grow so if you are looking for a lucrative career path, then a specialisation in blockchain technologies is one of the best tech career moves. This online course teaches you how to navigate the fascinating world of blockchain technologies.

Sep 28th 2026
2 Weeks
La Disrupción del Blockchain (Coursera) Coursera
Universidad Austral

La Disrupción del Blockchain (Coursera)

Muchas personas ya conocen al bitcoin, la moneda digital que en pocos años pasó de valer unos pocos centavos a miles de dólares. Pero esto es sólo la punta del iceberg de un fenómeno mucho más grande. El blockchain, la tecnología en la que se basa el bitcoin, tiene el potencial de disrumpir los negocios, las finanzas, las leyes y hasta los gobiernos.

Sep 28th 2026
5-12 Weeks
Gobierno Digital (Coursera) Coursera
Inter-American Development Bank - IDB

Gobierno Digital (Coursera)

La revolución digital ya está presente en muchos aspectos de nuestra vida, ¿y en nuestros gobiernos? Para seguir el ritmo de ciudadanos hiperconectados y del comercio que ahora es cada vez más digital, los gobiernos no se pueden quedar atrás. Muchos países tienen un alto nivel de interés: el 75% de gobiernos ya cuentan con una estrategia de gobierno digital. Sin embargo, estos esfuerzos no se han traducido a la práctica ya que, en 2017, solo el 7% ciudadanos latinoamericanos hizo un trámite en línea.

Oct 5th 2026
4 Weeks
What is the Metaverse? (Coursera) Coursera
Meta

What is the Metaverse? (Coursera)

The metaverse isn’t just for gamers or developers, it will be for everyone. In this free course from the experts at Meta, you’ll learn what the metaverse is, what it means for our world today and into the future, and the opportunities it presents for both professionals and businesses. Understand the metaverse fundamentals. Experts will guide you through a broad range of topics spanning the metaverse ecosystem, from communication and collaboration to NFTs and cryptocurrency, from avatars and devices to platforms and game engines. You’ll learn about augmented reality (AR), virtual reality (VR), extended reality, NFTs, blockchain, web3, cryptocurrency, and more.

Sep 28th 2026
5-12 Weeks
Blockchain Security (Coursera) Coursera
Infosec

Blockchain Security (Coursera)

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.

Sep 28th 2026
5-12 Weeks
Blockchain Scalability and its Foundations in Distributed Systems (Coursera) Coursera
The University of Sydney

Blockchain Scalability and its Foundations in Distributed Systems (Coursera)

Blockchain promises to disrupt industries once it will be efficient at large scale. In this course, you will learn how to make blockchain scale. You will learn about the foundational problem of distributed computing, consensus, that is key to create blocks securely. By illustrating limitations of mainstream blockchains, this course will indicate how to improve the technology in terms of security and efficiency. In particular, this course will help you: understand security vulnerabilities of mainstream blockchains; design consensus algorithms that tolerate attacks, and; design scalable blockchain systems.

Sep 28th 2026
5-12 Weeks
Empathy, Data, and Risk (Coursera) Coursera
University of Illinois at Urbana-Champaign

Empathy, Data, and Risk (Coursera)

Risk Management and Innovation develops your ability to conduct empathy-driven and data-driven analysis in the domain of risk management. This course introduces empathy as a professional competency. It explains the psychological processes that inhibit empathy-building and the processes that determine how organizational stakeholders respond to risk.

Sep 28th 2026
4 Weeks
Financial Markets (Coursera) Coursera
Yale University

Financial Markets (Coursera)

An overview of the ideas, methods, and institutions that permit human society to manage risks and foster enterprise. Emphasis on financially-savvy leadership skills. Description of practices today and analysis of prospects for the future. Introduction to risk management and behavioral finance principles to understand the real-world functioning of securities, insurance, and banking industries. The ultimate goal of this course is using such industries effectively and towards a better society.

Sep 28th 2026
5-12 Weeks
Disaster Risk Management and Korean Policies (Coursera) Coursera
Yonsei University

Disaster Risk Management and Korean Policies (Coursera)

In the past, developing countries such as Korea lacked guidelines for exploring effective policies for disaster-resilient growth, resulting in unnecessary sacrifices in terms of time, resources, and human capital. Through the lessons learned by Korea, currently developing countries facing socio-economic development can build disaster resilience without sacrifices.

Sep 28th 2026
5-12 Weeks
Security and Privacy for Big Data - Part 1 (Coursera) Coursera
EIT Digital

Security and Privacy for Big Data - Part 1 (Coursera)

This course sensitizes regarding security in Big Data environments. You will discover cryptographic principles, mechanisms to manage access controls in your Big Data system. By the end of the course, you will be ready to plan your next Big Data project successfully, ensuring that all security related issues are under control. You will look at decent-sized big data projects with security-skilled eyes, being able to recognize dangers. This will allow you to improve your systems to a grown and sustainable level.

Oct 5th 2026
1 Week
Cybersecurity Best Practices (Coursera) Coursera
Coursera Instructor Network

Cybersecurity Best Practices (Coursera)

"Cybersecurity Best Practices" is a transformative course designed for any learners whether they are just getting started with cybersecurity or are seasoned professionals looking for a refresher. This course uses real world examples and explains cybersecurity concepts in relatable ways to make it accessible for anyone while still challenging seasoned professionals to think of these concepts with a different lens.

Sep 28th 2026
1 Week
Cybercrime (Coursera) Coursera
Royal Holloway, University of London

Cybercrime (Coursera)

This course introduces fundamental notions of cybercrime. Namely, what cybercrime is, the main questions surrounding cybercrime, how cybercrime can be defined, and how it can be studied. You will learn about the difficulties in measuring the occurrence, the frequency and the impact of cybercrime, and build a scepticism on the reliability and the interpretation of cybercrime reports. You will be introduced to discussion about human aspects of cybercrime, in particular, the actors related to cybercrime, that is, the criminals, the victims, and law enforcement.

Sep 28th 2026
4 Weeks