A denial-of-service attack disrupted Greenfield Communications internet service in Rancho Murieta and elsewhere in Sacramento County, California, for nearly 48 hours before connections began returning Tuesday evening.
Greenfield notified customers Sunday, July 12, that it was responding to a denial-of-service threat, according to KCRA. The station’s reporting did not specify whether the attack originated from a single source or a distributed network of systems.
The company said service was beginning to return Tuesday evening. Full restoration had not been independently confirmed Wednesday, and the number of affected customers and percentage of restored connections were not publicly available.
The outage also affected the Rancho Murieta Community Services District, which said its phones and billing department were unavailable while internet service was down. The district said service had been restored and staff were working through messages received during the outage.
Greenfield had not posted a public incident update on its website as of Wednesday. Customers seeking assistance were directed to the company’s phone and email support channels.
Greenfield, founded in 2001, serves residential and commercial developments with internet, video, phone and security monitoring services. The company operates in communities in California and Texas, including Rancho Murieta.
Rancho Murieta is a census-designated community in Sacramento County with 5,903 residents and about 2,500 households, according to the 2020 census.
Chip in once
If this reporting helped you, a one-time tip helps cover hosting, tools and future investigations.
Support us monthly
A small monthly pledge keeps independent coverage and our reader tools online for everyone.
Greenfield’s disruption follows attacks affecting other regional communications providers. A cybersecurity event in November 2025 interrupted business and residential phone service at Rainbow Communications in northeastern Kansas. In 2023, a destructive malware attack disabled more than 600,000 routers connected to an unidentified U.S. internet provider.
Communications networks also face physical threats. Spectrum blamed deliberately cut fiber lines for separate service outages in Los Angeles and Austin, Texas, in 2025.
Greenfield had not identified an attacker or said whether customer data was accessed or law enforcement was involved. The company did not respond by publication to questions about the scope of the outage, restoration status or attack.
