SANS Internet Storm Center; Cooperative Network Security Community - Internet Security
Update: CloudFlare posted in their blog twice today claiming responsibility for the majority of this spike. Quoting: "If you assume that the global average price for bandwidth is around $10/Mbps, just supporting the traffic to deliver the CRL would have added $400,000USD to Globalsign's monthly bandwidth bill." Update: We've also seen articles from ZDNet and WIRED today in response to the below insights, with further analysis therein. It looks like, as I had suspected, the CRL activity numbers we have been seeing did not reflect the real volume caused by the OpenSSL Heartbleed bug. This evening I noticed a massive spike in the amount of revocations being reported by this CRL: http://crl.globalsign.com/gs/gsorganizationvalg2.crl The spike is so large that we initially thought it was a mistake, but we have since confirmed that it's real!
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