Power Outage in Mexico - Sudden drop of load triggered a network protection shutdown in Mexico

Posting ID 129245
Date Added: 12/28/2020 6:03 PM EST
Date Modified: 12/29/2020 8:09 AM EST
E-ISAC Staff


Around 2:45 p.m. CST, there were reports of a power outage in Mexico.  The outage affected approximately 20 states, including Mexico City and Guadalajara.  Local media sources reported that the sudden drop of approximately 7,500 MW triggered the shutdown.  As of 5:00pm est, approximately 94% of of the load, representing 7,050 MW has been recovered.

The E-ISAC will continue to monitor the situation; however, there is no indication of a security nexus at this time.  

UPDATE - As of 7pm EST - 100% of load has been recovered.  As of now, there is still no known cause of the sudden drop in MW; however, there is no indication of a security nexus at this time.

Category Type:
Physical Security
TLP - White
Shared Count (15)
  • Canadian CERTs
  • CRISP - Cyber Risk Info Sharing Program
  • DOE Complex
  • E-ISAC AOO Members
  • E-ISAC Staff
  • FBI, LE Fusion
  • FERC - OEIS, etc
  • International (other ISACs, CERTs)
  • Other (inc. local/state commissions)
  • Trade Organizations
  • Watch Floor
Change History
  • Admin, 12/29/2020
  • Admin, 12/29/2020
  • E-ISAC Staff, 12/28/2020