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Franklin County cyberattack response takes systems offline

Summary

Franklin County Government logo

Franklin County, Washington, shut down systems after detecting an attempted cyberattack in June 2024. Most returned by June 28, but one remained offline for investigation. Officials reported preventing a breach or data loss; the final restoration date is unverified.

Key facts

Timeline

  • Incident start:
    ? Earliest known or assessed start of malicious activity or incident activity.
  • First public signal:
    ? Earliest public indication of an outage, disruption, closure or other observable incident impact. The signal does not need to mention cybersecurity.
  • First public cyber evidence:
    ? Earliest credible public information connecting the incident or disruption to malicious cyber activity.
  • Official cyber disclosure:
    ? First official acknowledgment by the affected organization or an authoritative public body that the incident was cyber-related.
  • Last impact seen:
    ? Latest public indication that disruption, degraded operations, recovery work or unresolved impact was still ongoing.

Primary victim organization

Critical infrastructure sector

Incident characteristics

Assessments

Attack mechanisms

  • Unknown cyber mechanism

    The incident is confirmed to be cyber-related, but the specific attack mechanism is unknown.

Data impacts

  • No known data impact

    Available evidence indicates that the incident did not materially affect the confidentiality, integrity, or availability of data.

Operational impacts

  • Partial service outage

    A service, system, platform, or operational capability remained available only in part or with significant limitations.

  • Network outage

    Internal or external network connectivity was unavailable or materially impaired.

  • Internal systems unavailable

    Internal business, administrative, operational, or staff-facing systems were unavailable.

Extortion indicators

  • No known extortion indicator

    Available evidence indicates that no extortion demand, threat, communication, or related pressure tactic was identified.

Incident narrative

Analyst assessment

Franklin County, Washington, took systems offline after detecting an attempted cyberattack on June 27, 2024. The attempt and the resulting containment disruption are supported by statements from county officials reported by local media. An unsuccessful intrusion attempt can still cause operational disruption when the affected organization shuts down systems in response.

The Tri-City Herald’s June 28 report, citing a county news release, said the information services team prevented a breach or loss of data. This is the county’s reported finding; no public technical report reviewed in this pass independently establishes the attack path or every system examined.

Operational significance

In KEPR’s original report, Emergency Management Director Sean Davis described taking systems offline and restoring them in stages. Most were back online when the report was published June 28, while the system described as the direct target remained offline for maintenance and investigation.

The concrete impact is loss of access to county systems during containment and a continuing limitation on one system. The reports do not identify that system’s business function. They do not establish a courthouse closure, failed emergency dispatch, interrupted elections or a particular public payment service. Those effects are not inferred from the general server outage.

June 27 is the reported attack and response date, without a verified detection time. June 28 is the first verified public disclosure and the latest dated observation of a remaining offline system in the reviewed evidence. KFLD’s contemporaneous report also describes officials releasing information Friday afternoon about the previous day’s attempt.

The incident is presumed resolved because it is historical and no later concrete impairment tied to this event was located, but an exact full-restoration date remains unknown. Later Washington Courts and CodeRed disruptions are separate events and do not extend this incident’s timeline.

Confidence and uncertainty

Officials said the attackers did not breach servers or obtain county data. No encryption, ransom demand, payment or named responsible group was established in the reviewed original reporting. KEPR’s headline characterizes the event as a brute-force attack; the available evidence does not distinguish password guessing, password spraying, credential stuffing or another mechanism.

The county reported notifying Homeland Security, the Cybersecurity and Infrastructure Security Agency, Washington’s secretary of state and other partners. KEPR reported outside assistance, including a Homeland Security agent assessing the situation. These response details do not independently identify an attacker.

Analytic gaps

The precise intrusion method, targeted system’s business function and exact date of full restoration remain unknown. The county’s statements that it prevented a breach or loss of data are attributed findings; the reviewed public evidence does not provide a complete forensic account.

Organizations involved

Impacted locations

  • Franklin County, Washington

    Franklin County contains the affected government’s Pasco administrative offices. This site-level anchor locates the organization physically; it does not assert a uniform countywide outage or identify the attacked system’s location.

    The affected government serves Franklin County. Officials described protective system shutdown and staged restoration, with one system still offline in the June 28 report. This county overlay represents governmental remit, not evidence that every service or community experienced an outage.

  • Pasco, Washington

    Pasco contains the affected county government’s commissioners’ offices at 1016 North Fourth Avenue. This physical location does not establish a building closure, an intrusion into Pasco city government or the location of the targeted system.

Sources

Franklin County faced with 'brute force' cyber attack

Reports that Franklin County, Wash., took systems offline after noticing suspicious activity during a ‘brute force’ attempt; Emergency Management Director Sean Davis said attackers did not breach servers or access data, most systems were restored by June 28, 2024, and a targeted system remained offline for maintenance/investigation; DHS assistance was mentioned.

Franklin County fends off cyberattack Thursday

County commissioners described the previous day’s attempted attack, defensive measures and notifications to outside authorities. The county said no breach or data loss occurred.

Franklin County says they were the target of an unsuccessful cyber-attack

Coverage reporting Franklin County, Wash., was targeted by an unsuccessful cyberattack attempt on June 27, 2024, and that the county’s Information Services team detected it early and prevented a breach or loss of data.

Franklin County Board of County Commissioners

The commissioners’ page describes county policy, budget, property, roads and administrative duties and lists offices at 1016 North Fourth Avenue in Pasco.

Franklin County courthouse location

The county identifies Pasco as its county seat and lists the courthouse at 1016 North Fourth Avenue.

Franklin County Sheriff's Office 2024 annual report

The county sheriff’s annual report describes Franklin County’s history, Pasco county seat, river borders, communities and farming and food-processing economy.

History and highlights of Pasco

Pasco’s history describes its river setting, railroad and transportation development, incorporation in 1891 and the importance of irrigation and agriculture.

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