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City of Durant ransomware attack

Summary

City of Durant logo

A June 1, 2025, ransomware attack disrupted Durant’s payments, administrative systems and police communications network while 911 remained operational. The city later warned of possible access to personal information; INC Ransom’s theft claim remains 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

Impacted locations

Critical infrastructure sector

Incident characteristics

Assessments

Attack mechanisms

  • Ransomware

    Malware that encrypts systems or data, typically accompanied by a ransom demand.

Data impacts

  • Data unavailable

    Authorized users could not access required data because of the incident, even when the data was not encrypted, deleted, or destroyed.

Operational impacts

  • Network outage

    Internal or external network connectivity was unavailable or materially impaired.

  • Website unavailable

    A public-facing website was unavailable, disabled, or inaccessible.

  • Online portal unavailable

    A public, customer, employee, student, patient, vendor, or partner portal was unavailable or materially impaired.

  • Internal systems unavailable

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

  • Payment processing disruption

    The organization could not process, receive, issue, reconcile, or record payments normally.

  • Government services disrupted

    Public administrative, licensing, permitting, court, tax, records, benefits, or other government services were materially affected.

  • Service delay

    Services continued but with longer processing, response, delivery, or completion times.

  • Manual workaround required

    Staff or users had to rely on paper, telephone, in-person, offline, or other manual processes.

  • Alternate service channel required

    The organization redirected users to a different website, office, telephone number, email address, provider, or service channel.

Extortion indicators

  • Ransom demand

    The victim received a demand for payment in exchange for restoring access, decrypting systems, preventing disclosure, or stopping another threatened action.

  • Data-theft extortion

    The actor threatened to disclose, sell, distribute, or otherwise misuse stolen data unless the victim paid or complied with demands.

  • Public leak threat

    The actor explicitly threatened to publish or publicly release victim data or incident details.

  • Leak-site listing

    The victim was listed on a threat actor or ransomware data-leak site as an alleged target or nonpaying victim.

  • Countdown or payment deadline

    The actor imposed a deadline or public countdown before increasing the demand, publishing data, deleting keys, or taking another threatened action.

Incident narrative

Analyst assessment

The City of Durant experienced a ransomware attack June 1, 2025, that disrupted municipal computer networks, digital payments and administrative systems. The police department’s June 1 notice documented outages on city-owned servers, and the city’s June 2 statement explicitly identified ransomware. Our initial reporting described the resulting payment and billing disruption.

The city later warned that an attacker may have accessed a server and database containing information about people who had interacted with the municipality. Its July 15 information security notice identified names, addresses, Social Security numbers and financial information as potentially involved. The city did not believe the attacker had access to all internal files and systems and reported no known actual misuse at that time. These findings are narrower than confirmation that every resident’s records were stolen.

Operational significance

The outage impaired the city’s ability to accept digital and credit card payments and use some administrative programs. KXII’s June 2 report described cash and check payments at City Hall and a telephone option for people with an account number. Those alternatives allowed some transactions to continue while ordinary payment channels were unavailable.

The police communications center also experienced network effects, but the department said emergency services remained operational and residents could continue calling 911. It warned that non-emergency callers might face longer waits because of the outage and call volume. The Record reported June 3 that the city’s website was still down. These observations establish municipal service disruption without establishing loss of 911 service or a countywide outage.

In a June 6 update, the city projected that online payments would return Monday, June 9. The post described a planned return rather than confirming that it happened. The July 15 notice said the city believed the incident was contained after isolation, remediation and work with outside forensic and IT specialists. Containment and the absence of a later verified operational outage support a presumed resolved assessment; the exact date of complete service restoration remains unverified.

Confidence and uncertainty

Confidence is high that ransomware caused the municipal disruption because the city acknowledged both. The early June statement that officials knew of no personal information compromise was provisional. The later notice established possible access to information on an affected server, while leaving the precise data impact and investigation outcome unresolved. The continuing investigation does not by itself establish continuing service disruption.

INC Ransom claimed responsibility, alleging theft of more than 800 GB and threatening disclosure. Comparitech reported the claim June 17, including a 48-hour payment deadline. The city has not verified the group’s responsibility, stolen volume or claimed information categories. The tracker’s discovery timestamp is not the intrusion date or a verified original publication date. Nearby attacks and references to RansomHub in reporting about other governments do not establish a common attacker or campaign for Durant.

Analytic gaps

The initial access method, intrusion onset before June 1 detection, exact extent of unauthorized data access, any verified exfiltration and the final investigation findings remain unknown. The reviewed evidence does not establish whether a ransom was paid, whether the threatened data was released or when every affected municipal capability returned to normal. The June 9 payment milestone remains a projection in the original city source, so no exact operational end date is assigned.

Threat actor and claim

Listed as: Durant CitySource: ransomware.liveDiscovered:

Claim details

INC Ransom claims the city as a victim, alleges more than 800 GB of stolen data and threatens publication after a 48-hour deadline. The listing’s description identifies the city address and durant.org. The city has not confirmed INC Ransom’s responsibility, the claimed volume or the final disclosure outcome. Tracker discovery is not an intrusion or verified original publication date.

Organizations involved

Impacted location

  • Durant, Oklahoma

    Municipal government remit for the affected city services. Payment and administrative functions were disrupted; emergency 911 service remained operational.

    Durant contains City Hall, where residents were directed to use alternative payment methods during the outage.

Sources

Citywide Network Outage Notification

Network outages on city-owned servers affected the police communications center. Emergency services and 911 remained operational.

City of Durant Cybersecurity Update

The city says it became the target of ransomware June 1 and that digital and credit card payments remain affected.

Durant targeted by ransomware attack, some services impacted

City officials confirmed ransomware affecting digital and credit card payments and administrative programs, with alternative payment methods available.

City of Durant online payment systems update

The city projected that online payment systems would return Monday, June 9.

City of Durant information security notification

The city’s notice says an attacker may have accessed a server and database containing personal and financial information. The city believed the incident was contained.

Durant updates residents on June ransomware attack

The report describes the city’s July notice about possible access to personal information after the June incident.

INC Ransom claim: Durant City

The tracker records an INC Ransom listing that identifies Durant’s city address and website and threatens publication of purportedly stolen data.

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