Internet Security for Beginners (openHPI)

Internet Security for Beginners (openHPI)

Hackers manage again and again to steal passwords, to access sensitive enterprise and user data, and, in the worst case scenario, to even paralyze entire companies. The Internet offers various possibilities to its users, but, at the same time, it harbors dangers and vulnerable points of attack, which many people are not even aware of. In this openHPI course you will learn the basics of Internet security.

Why is the Internet insecure by nature of its design? What are the weak spots of the Internet and how are they exploited by cybercriminals? We want to answer these questions and a lot more in this course. Additionally, we will advise you on how to protect yourself from such cyberattacks.

Course contents

Week 1:
We will explain the basic terms vulnerability, attack, and incident in the first week. Furthermore, we will elaborate on attackers, their motives and their origins.
Week 2:
In week 2, we will explain the idea and the concept of digital Identities and passwords. We will discuss the digital footprint, the feasibility to (easily) crack passwords and guidelines to chose a secure password.
Week 3:
In this week we will discuss several issues about malware. We will cover different types, such as, viruses, worms, and trojans, talk about botnets and mention some countermeasures.
Week 4:
In week 4, we will talk about dangers and risks that arise through the usage of open routes in the Internet. Therefore, we will discuss how attacks can capture messages and eavesdrop or even manipulate and compromise connections. Furthermore, some security mechanisms for those open communication channels, such as firewalls and encryption are illustrated.
Week 5:
In the 5th week, we will take a closer look at the general topic encryption. Therefore, we explain different cryptographic algorithms and how they can be used for various purposes.
Week 6:
In this week we will talk about several topics related to data privacy and private sphere in the digital world. Starting at the Internet as one big eco-system we will also cover privacy in the context of smartphones and wearables, the Internet-of-things or cloud computing, for example.
Final Exam:
Show what you have learned during the course by taking the final exam and qualify for a certificate.

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.

Aug 3rd 2026
2 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.

Aug 3rd 2026
5-12 Weeks
Mainframes (openHPI) OpenHPI
Hasso-Plattner-Institut

Mainframes (openHPI)

Kaum jemand kennt sie. Und dennoch hat man täglich mit ihnen zu tun. Wer an einem Bankautomaten Geld abhebt, wer einen Flug bucht, wer mit der Deutschen Bahn unterwegs ist: Immer arbeiten im Hintergrund Mainframes, welche die wirklich entscheidende Arbeit verrichten und dafür sorgen, dass alles sicher und ohne Datenverlust vonstatten geht. Mehr als 70 Prozent der Global 500 arbeiten mit diesen Großrechnern.

Self Paced
Self-Paced
Cybersecurity Job Search, Resume, and Interview Prep (Coursera) Coursera
IBM

Cybersecurity Job Search, Resume, and Interview Prep (Coursera)

With the digital and AI disruption, cybersecurity professionals are in even higher demand around the world, and the trend shows no sign of slowing. There are also several great candidates. How can you get the edge in such a competitive field? This course will prepare you to enter the job market as a great candidate for an entry-level cybersecurity position. You will be equipped with practical techniques to create job-related documents, such as a resume, a portfolio, a cover letter, and an elevator pitch.

Aug 3rd 2026
4 Weeks
5G Network Fundamentals (Coursera) Coursera
Institut Mines-Telecom

5G Network Fundamentals (Coursera)

This MOOC presents the services and the architecture of 5G networks, the main principles of the new radio interface (NR), data flow management, security and the new Service-Based Architecture (SBA). In recent years, operators have been deploying 5G technology on commercial mobile networks. The latter is announced as a major technological breakthrough with speeds beyond Gbit/s, very low latencies and above all a distribution in many sectors of activity (industry, transport, medicine, etc.).

Aug 3rd 2026
5-12 Weeks
Cybersecurity and Its Ten Domains (Coursera) Coursera
University System of Georgia

Cybersecurity and Its Ten Domains (Coursera)

This course is designed to introduce students, working professionals and the community to the exciting field of cybersecurity. Throughout the MOOC, participants will engage in community discourse and online interaction. Participants will gain knowledge and understanding of cybersecurity and its domains. They will engage with expertly produced videos, gain insight from industry experts, participate in knowledge assessments, practice assessing their environmental awareness, and gain access to materials that address governance and risk management, compliance, business continuity and disaster recovery, cryptography, software development security, access control, network security, security architecture, security operations, and physical and environmental security.

Aug 3rd 2026
5-12 Weeks
Internet History, Technology, and Security (Coursera) Coursera
University of Michigan

Internet History, Technology, and Security (Coursera)

The impact of technology and networks on our lives, culture, and society continues to increase. The very fact that you can take this course from anywhere in the world requires a technological infrastructure that was designed, engineered, and built over the past sixty years. To function in an information-centric world, we need to understand the workings of network technology. This course will open up the Internet and show you how it was created, who created it and how it works. Along the way we will meet many of the innovators who developed the Internet and Web technologies that we use today.

Jul 27th 2026
5-12 Weeks
Ethical Issues in Data Science (Coursera) Coursera
University of Colorado Boulder

Ethical Issues in Data Science (Coursera)

Computing applications involving large amounts of data – the domain of data science – impact the lives of most people in the U.S. and the world. These impacts include recommendations made to us by internet-based systems, information that is available about us online, techniques that are used for security and surveillance, data that is used in health care, and many more. In many cases, they are affected by techniques in artificial intelligence and machine learning.

Aug 3rd 2026
5-12 Weeks
Cryptography I (Coursera) Coursera
Stanford University

Cryptography I (Coursera)

Cryptography is an indispensable tool for protecting information in computer systems. In this course you will learn the inner workings of cryptographic systems and how to correctly use them in real-world applications. The course begins with a detailed discussion of how two parties who have a shared secret key can communicate securely when a powerful adversary eavesdrops and tampers with traffic.

Jul 27th 2026
5-12 Weeks