Securing the Guard

Securing the Guard January 2014 I have talked previously about the challenge of building a File Guard, and the approach we took to designing it. Because we are building a physical appliance, there is a lot more to design than software – we have to design the whole...

RedHat Case Study – Nexor Sentinel

RedHat Case Study – Nexor Sentinel July 2013 Those nice people at RedHat have written a Case Study on the Nexor Sentinel Product… The story is essentially one of how Nexor worked with two key customers to evolve our Nexor Sentinel E-Mail Guard. One...

Can you trust a $1612 Data Diode?

Can you trust a $1612 Data Diode? March 2013 The Data Diode technical model to achieve a one way network connection is relatively simple. However when you start to consider trust and assurance, it gets more complex. Technical Model There are many articles that talk...

Common Criteria Certification for Nexor Sentinel

Common Criteria Certification for Nexor Sentinel February 2013 Nexor has announced the Common Criteria Certification, to EAL4 of Nexor Sentinel – a high assurance, e-mail guard. In the announcement I am quoted as saying: Our commitment to SE Linux has given as a...