Stephen Owens' Blog

Bash ‘Shellshock’
Information security is extremely important to ThoughtWire and we started a thorough investigation immediately after the Bash 'Shellshock' vulnerability was announced on September 24th. The ThoughtWire platform does not directly incorporate or use Bash scripts and therefore we do not believe there is a security risk. Additional Details: This is a very new exploit and details about...
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Notes from Identity North
I spent part of a couple of days this week at the Identity North conference here in Toronto and there was a lot of really interesting discussions. I was struck by the mix of people from a range of sectors coming together to discuss identity and the role it is playing in the development of online services. Of particular interest were these presentations. Digital Identity in Estonia ...
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Heartbleed and OpenSSL Statement
The ThoughtWire platform does not directly incorporate or use OpenSSL. Nevertheless, information security is extremely important to ThoughtWire and we started a thorough investigation immediately after the OpenSSL vulnerability was announced on April 8th. Additional Details: ThoughtWire uses Forgerock's OpenAm for authentication, which was not exposed to this bug (see: ...
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Step 1 Gather Information - Step 2...
Historically empiricism started in the Renaissance, at least in western civilizations. For me, it started with one of my first mentors, a wonderful manager who was a physicist by training, but working on textile graphics systems. He always stressed the importance of understanding the data before trying to reach conclusions. Whenever I was faced with a particularly tough bug I'd go walk...
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Load and Circuit Breakers
This circuit breaker design pattern shows how a software component that acts like a circuit breaker can be used to protect high volume systems from uneven availability across distributed functionality. The basic idea is to insert this new component between two subsystems where failure in one could adversely affect the availability or performance of the other and it is desirable to detect a...
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