Danny McPherson's Posts

5th Edition of the Worldwide Infrastructure Security Report

January 19, 2010 by Danny McPherson

Today we released the 5th Edition of the Worldwide Infrastructure Security Report (WISR), albeit a couple months later than we initially had intended (it had to take a backseat to some operational stuff).  On the upside, it’s here now(!), and we doubled the respondent pool over last year, to include 132 respondents globally, with both wider geographic and [...]

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Fire or DDoS – Which is more probable?

January 8, 2010 by Danny McPherson

The charts below contain summary data obtained from ~100 ISPs sharing information with Arbor by way of our anonymous statistics sharing program, enabled through operational Peakflow SP systems globally over the past 12 months (roughly, CY2009). This data is largely a superset follow-on to a blog post from mid-2009 that seems to have gained momentum [...]

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Your DNS is an Asset (Twitter DNS Woes…)

December 19, 2009 by Danny McPherson

Given all the hoopla surrounding yesterday’s Twitter outage, and the apparent source of the outage being the result of nothing more than some maliciously modified DNS resource records enabled by a simple password compromise of Twitter’s DNS administrator account with their DNS services provider, Dyn Inc., I’d like to again take this opportunity to share [...]

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