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⚠️ #Blackout A coordinated cyber attack would damage key elements of the US online infrastructure, but not cripple the system. However, “a satchel bomb thrown down a manhole in Manhattan would be far easier, cheaper, and still fairly destructive.”⚠️ thehill.com/sites/default/…
🕳 The underground infrastructure in American cities is vast. Critical networks with substantial and vital elements below the surface👇 
🕳 Manholes are largely unsecured, creating the potential for unauthorized access and subsequent terrorist attacks on these networks. Manholes = Tier I = Highest Risk
💥🕳💥 Pranksters and scrap metal thieves continually demonstrate that the weight of the manhole cover is not adequate to secure access to the critical infrastructure located underground in American cities. cc @InfraGardNCR @NewYorkFBI @nym_infragard
