makes open source security easy

Media Partnership

This interview is in media cooperation with Frankfurt Forward ( Codario is the Startup of the Month March 2020Congratulations!

The Founder

We talk to Johannes “Joe” Noll  (, co-founder and CEO at (formerly known as App Guard) (, a cybersecurity startup from the Rhine-Main Area (Darmstadt).

Johannes is a returning interview partner, due to our media partnership. If you want to learn more about him and the startup, see at the end of this post for the interview posted on October 10th 2019, where we talked to him at an event.

Johannes got sucked in the startup world by attempting to make a copycat of the app Jodel ( It is an app for sharing anonymously gossip. The name is inspired by the Bavarian jodeln (see video below – Further Readings).


We help software developers to use open source in a secure way.
Johannes “Joe” Noll of during his interview

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The Startup

Codario is a cloud-based open-source dependency update as a service solution. As a software developer one uses not only own code, but also open-source code (libraries). The startup helps software developers to monitor and update these open source libraries they are using, so known vulnerabilities of old versions cannot be exploited in the new project.

They are currently 5 people. Codario has paying customers like the University of Heidelberg (the world’s 2nd oldest university) or the European Commission.


Our slogan is “Open source security made easy”
Johannes “Joe” Noll of during his interview


Find the video interview from March 12th 2020 here:


If you are not updating your 3rd party code hackers can attack your web application, even if you have your own code secured.
Johannes “Joe” Noll of during his interview


Top Book Picks by 28-year-old serial entrepreneur Peter (AL)

Principles by Ray Dalio

The man who solved the market

What You Do Is Who You Are: How to Create Your Business Culture

The little prince

Friedrich Nietzsche’s Books:

Herman Hesse’s Books


The old Interview from October 2019

In some cases, four hours after a new release, automated hacks for the fixed issues start
Johannes “Joe” Noll of during his interview


Venture Funding

Codario is currently closing a 1.5 mn Euro Seed Financing round. If you like to get in, let us know and we will introduce you to Johannes.


It makes sense for hackers to not to target custom code of web applications, but third-party code, because of that you can target several hundred websites simultaneously. Not one product, but several hundred.
Johannes “Joe” Noll of during his interview

Further Readings

Link YouTube Video Jodeln

Link Rhein-Main (Wiki)

Wiki Frauenhofer Institute

Heise Blog

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