Online24

Online24 Security research. That’s our expertise. We investigate by trying the best we can to hack into your systems. After your written permission, of course.

10/04/2012

A new blog post about the security risks associated with Unicode.

There are some potential risks associated with using Unicode in your web app. Many developers use Unicode because it’s popular, cool, or ‘the way to go’. Many however not knowing what it actually is.

https://www.online24.nl/blog/ios-push-notification-apns-flaw/
27/03/2012

https://www.online24.nl/blog/ios-push-notification-apns-flaw/

When you use someone else’s iPhone to connect to an online service like Twitter, there might be some unintended consequences. The owner of that phone could use a clever trick to make push notifications continue to be sent to his phone even after you’ve logged out. This hack is possible for most appl...

Our new lovely wall decoration at our Groningen office :)
08/02/2012

Our new lovely wall decoration at our Groningen office :)

13/10/2011

Today is our 4th birthday ― thanks to all the people who support, advice, inspire and love us. To celebrate, we'll organize a party in November!

23/08/2011

The Belgian newspaper De Standaard mentions Online24 in an article about Twitter spam.

BRUSSEL - Door wat nonchalance op het internet gaat je Twitter-account al gauw een eigen leven leiden. Voor je het goed en wel beseft zijn je tweets de baas aan het uitschelden.

Twitter applauds our efforts for helping them again in 2011. Thanks guys! https://twitter.com/about/security
18/08/2011

Twitter applauds our efforts for helping them again in 2011. Thanks guys! https://twitter.com/about/security

At Twitter, we value your online security as much as you do. Our team works constantly to protect the security of your account, and takes steps every day to provide a secure Twitter experience for our users.

Interview about our company in the Dutch local newspaper "Dagblad van het Noorden".
09/08/2011

Interview about our company in the Dutch local newspaper "Dagblad van het Noorden".

22/07/2011

We just launched our re-designed website — check it out at www.online24.nl. Comments welcome!

06/07/2011

In case you've missed it: July 12 - July 26 we'll be in the San Francisco Bay Area. And yes, next week we'll launch something beautiful! :-)

16/05/2011

May 27th - 29th we'll be attending pH-neutral in Berlin.

21/02/2011

New blog post: Hacked: Public Transportation Chip Card.

Security research. That’s our expertise. We investigate by trying the best we can to hack into your systems. After your written permission, of course.

Read the more detailed story about our participation in the research to the "student OV-chipkaart" at Webwereld.nl.
16/02/2011

Read the more detailed story about our participation in the research to the "student OV-chipkaart" at Webwereld.nl.

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