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Hello, I'm

Stefan Friedli

For more than a decade, I’ve made it my professional mission to make people and technology more secure and raise awareness for vulnerabilities and ways to overcome them. Along the way, I picked up some other things I like doing. This site is a little bit about all the aforementioned.

Here’s a video from Ignite Zurich, in which I explain what I do and why I do it in five minutes.

Information Security

Powerful Skeleton Keys: Why you should really use Google Authenticator

August 25, 2016

“You should talk to Stefan, he knows a thing or two about computers”, I heard from a table nearby and made a conscious effort to appear deeply involve...

Information Security

Software without Brakes: Who pays for vulnerabilities in software?

June 12, 2016

Vulnerabilities in Software are worth money. Bug Bounties are a source of income for many independent security experts. In 2014, Facebook’s bug bounty...

Information Security

Do Terrorists have more to hide than you do?

February 4, 2016

The attacks in Paris in November 2015 have left their mark: Not just the families oft he victims and the survivors but the entire world is asking them...

Information Security

Public Shaming and The Case Ashley Madison

August 21, 2015

Users of the dating platform Ashley Madison probably aren’t sleeping too well these days: After it has become clear a month ago that the website has b...

Information Security

The Case for Net Neutrality

March 12, 2015

The 26th of February 2015 was an important day for the American Internet: In a remarkable vote, the FCC decided that access to the internet is to be t...

Information Security

So Long, and Thanks for All the Superfish

February 24, 2015

One of the most solid and reliable devices I’ve ever owned was the IBM ThinkPad T42. It was rather expensive, even though I got it via the Neptun Proj...

Information Security

Wardialing Revisited – A Call with Consequences

January 2, 2015

On December 4th, 2014, the Toni Areal – a newly renovated area – in Zürich was in a state of panic. The reason: Someone triggered the alert at the Zür...

Information Security

Bug Bounties – Getting that free Netscape Mug

October 16, 2014

In September 2014, the internet went a bit crazier than it usually is for a while: A person that remains anonymous as of writing this released an aval...

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