Did Blaster Cause the Blackout?

Did Blaster Cause the Blackout? “there is a very good plausibility that the recent East Coast power outage was due to an attack by an MSBlaster variant on the SCADA (Supervisory Control and Data Acquisition) system at the power plant master terminal, or more likely at several of the remote terminal units (RTUs). SCADA runs under Win2000 / XP and the telemetry to the RTU is accessible via the Internet.”