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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.

自四月 27, 2018起开始自学
语言: English
Beginner, Cybersecurity, Internet


Since the late sixties, American researchers have not only been able to use computers as standalone calculating machines but to connect them to a broad network. This was the start of the Internet which, in the meantime, connects nearly four billion people and around 23 billion devices, (e.g., computers, smartphones and sensors). The network of networks has therefore also become an attractive target for criminals. Around four million attacks are registered every day, (i.e., 50 per second). Although the economic damage around the globe is huge - and we are talking about US$400 billion a year - only a small amount of resources is spent on Internet security.

Protection from Internet risks requires more action worldwide: from businesses, institutions, public authorities, and every one of us. In this 6-week free course in English, we offer practical support to face this challenging task. With no prior knowledge required, participants can find out what methods hackers use to break into computers and networks. Learn how cybercriminals manage to steal passwords and how you can protect yourself from such cyberattacks.

The workload of this course is equivalent to 2 ECTS credits.

Course characteristics:

  • Language: English
  • Starting from: February 26, 2018
  • Course end: April 9, 2018
  • Duration: 6 weeks (3-6 hours per week)
  • Target group: Anyone who uses the Internet
  • Course requirements: none

Join openHPI's official Twitter Feed: @openHPI.
Use the hashtag #intsec2018 to join and contribute to social media conversations about this course.
Additional video lecturing material can be found at .


  • 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.
  • I like, I wish:

    Here you can give us feedback for the course and propose changes.


该课程是免费的。 只需在openHPI上注册一个帐户并参加课程!


Course End
4月 27 2018
Course Start
2月 26 2018




  • 课程证书 授予者需要至少取得课程总分的百分之 50%
  • 参与证明 授予者需要至少学习了所有课程资料的百分之 50%
  • 完成课程可获得开放徽章



Prof. Dr. Christoph Meinel

克里斯托弗·梅内尔教授是德国波茨坦哈索·普拉特纳研究院(HPI)院长。他是德国国家科学工程院 (acatech) 院士、计算机科学领域正教授(C4)并负责领导HPI互联网技术和系统研究组。他的主要研究领域包括未来网络技术,特别是信息安全和Web 3.0之语义网,以及社交和服务网。同时他也积极参与新型互联网应用的建设,专注于电子教育、远程教育和远程医疗领域。此外他也活跃在“设计思维(Design Thinking)”这个新的研究领域。他早期的研究工作主要集中于计算机科学领域的基础理论研究,如计算复杂度、基于有序二叉判定图的高效算法和数据结构设计。

克里斯托弗·梅内尔教授同时在IT系统工程领域和HPI设计思维学院面向本科生和硕士生授课。他是北京工业大学计算机科学学院名誉教授,是上海大学客座教授,也是卢森堡大学跨学科中心SnT(安全和信任中心)资深研究员。从2008年以来,他和斯坦福大学的拉里·莱弗教授(Prof. Larry Leifer)一起建立HPI-Stanford设计思维研究项目并担任组长。自2010年起,他执掌HPI 高性能计算实验室(Future SOC Lab)督导委员会。

克里斯托弗·梅内尔教授撰写或合著了10本图书和4本选集,同时也是众多会议论文集的编辑。他在高质量期刊和会议上共发表了超过400篇文章。他所拥有的高安全解决方案Lock-Keeper 国际专利已被西门子公司转为商用。他的新型移动课程录制和网络发布系统Tele-TASK 已被世界上多所大学和研究机构采用。他的针对互联网安全的虚拟tele-lab为互联网信息安全这个现实问题提供了获取实验数据的可能。最近开发的tele-board系统实现了创意团队的远程工作的支持。

克里斯托弗·梅内尔教授现任德国IPv6委员会主席、南非UTD Meraka 顾问委员会会长和SAP安全顾问委员会会员。在2006年他与哈索·普拉特纳教授(Prof. Hasso Plattner)一起主持了德国联邦总理安杰拉·默克尔博士(Dr. Angela Merkel)的德国首届“信息技术峰会”。他是特里尔大学通讯技术研究所的创始人,并于1998~2002年间担任该研究所所长。此外,克里斯托弗·梅内尔教授还担任一系列电子学术期刊的主编。