Colorado energy company loses 25 years of data after cyberattack, still rebuilding network

Colorado’s Delta-Montrose Electric Association (DMEA) is still struggling to recover from a devastating cyberattack last month that took down 90% of its internal systems and caused 25 years of historic data to be lost. 

In an update sent to customers this week, the company said it expects to be able to begin accepting payments through its SmartHub platform and other payment kiosks during the week of December 6.

“We also tentatively estimate we will be able to resume member billing the week of December 6 – 10. We recognize this will result in members receiving multiple energy bills close together. As a reminder, we will not disconnect services for non-payment or assess any penalties through January 31, 2022,” the company said on a page that has been updated repeatedly over the last month. 

The company said it began noticing issues on November 7, and the cyberattack eventually brought down most of its internal network services. The attack affected all of the company’s support systems, payment processing tools, billing platforms and other tools provided to customers. 

DMEA said the hackers were targeting specific parts of the company’s internal network and corrupted saved documents, spreadsheets, and forms, indicating it may have been a ransomware incident. 

The attack

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