Some History of Security Levels in ISA/IEC 62443

One of the comments/complaints I’ve heard often about the ISA/IEC 62443 series is that the definition of Security Levels (SLs) is too vague and can’t be used. Many of these comments come from people that are either safety engineers or have worked around inside and/or safety systems for long periods of time. Now that 62443-4-2 …

BSidesDC QR Registration System

By all accounts, this year’s BSidesDC (http://www.bsidesdc.org) registration system was a vast improvement over previous years. We’ve had a variety of problems that have all caused on-site check-in for registered attendees, sponsors, speakers, and trainees to be extremely slow. The 2015 BSidesDC conference was particularly bad, resulting in a nearly complete failure of the automated …