The following new documents were recently made available by the SEC, and have been identified by an automated process as potentially relating to disclosures of “cyber” risk or incidents.
04/23/2013 US AIRWAYS GROUP INC, US AIRWAYS INC http://www.sec.gov/Archives/edgar/data/701345/000119312513166077/d505866d10q.htm (10-Q for US AIRWAYS GROUP INC)
04/25/2013 NORTHWESTERN CORP http://www.sec.gov/Archives/edgar/data/73088/000007308813000110/nwe-33113x10q.htm (10-Q for NORTHWESTERN CORP)
04/25/2013 OVERSTOCK COM INC http://www.sec.gov/Archives/edgar/data/1130713/000110465913032734/a13-8354_110q.htm (10-Q for OVERSTOCK COM INC)
04/24/2013 SILICON LABORATORIES INC http://www.sec.gov/Archives/edgar/data/1038074/000110465913032197/a13-7859_110q.htm (10-Q for SILICON LABORATORIES INC)
04/24/2013 KAISER ALUMINUM CORP http://www.sec.gov/Archives/edgar/data/811596/000081159613000029/kalu331201310q.htm (10-Q for KAISER ALUMINUM CORP)
04/24/2013 QUALCOMM INC DE http://www.sec.gov/Archives/edgar/data/804328/000123445213000179/qcom3311310-q.htm (10-Q for QUALCOMM INC DE)
04/24/2013 BROADCOM CORP http://www.sec.gov/Archives/edgar/data/1054374/000105437413000072/brcm-20130331x10q.htm (10-Q for BROADCOM CORP)
04/24/2013 APPLE INC http://www.sec.gov/Archives/edgar/data/320193/000119312513168288/d501596d10q.htm (10-Q for APPLE INC)
04/24/2013 PRAXAIR INC http://www.sec.gov/Archives/edgar/data/884905/000088490513000051/px-q1201310q.htm (10-Q for PRAXAIR INC)
You can read more about filings like this at https://vaguelythreatening.wordpress.com/2012/08/30/sec-comment-letters-as-infosec-situational-awareness/