Security and compliance firm nCircle quietly purged several blog posts written by a former researcher who was arrested this week by Canadian authorities in charge of securing the G8 and G20 summits taking place in Ontario.Byron Sonne, a certified information systems security professional who has been highly visible in research circles for almost a decade, was arrested on Tuesday in Toronto. Officials with Canada's Integrated Security Unit haven't officially fleshed out the charges beyond the contents of this press release (PDF), which lists "Intimidation of Justice System Participant by Threat," "Intimidation of Justice System Participant by Watch and Beset," "Mischief interfere with property," "Attempt mischief," "Possess explosive for unlawful purpose," and "Weapons dangerous."

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