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high severity September 18, 2024 · 3 min read Unverified claim — what this is

cityofpleasantonca.gov Listed by ValenciaLeaks Ransomware Group

If you are a customer of cityofpleasantonca.gov, here’s what is being claimed, and what it would mean for you.

Data Exfiltrated : 283GB - Leak Date : 10.09.2024:03:06

— from ValenciaLeaks’s own leak-site posting. This is the group’s claim, quoted verbatim; it is not GalaxyWarden’s reporting and has not been independently verified.
cityofpleasantonca.gov Listed by ValenciaLeaks Ransomware Group

On September 18, 2024, the City of Pleasanton, California, appeared on the leak site operated by the ValenciaLeaks ransomware group. The listing claims that attackers exfiltrated 283GB of internal files during a ransomware incident with a leak timestamp of 10.09.2024 at 03:06. The notification does not specify the exact number of residents, employees, or vendors whose records were taken, nor does it detail every file type exposed.

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Primary Disclosure Details

The ValenciaLeaks posting states that data was exfiltrated in a ransomware attack against cityofpleasantonca.gov and lists 283GB of internal files as the volume obtained. The leak date is explicitly recorded as September 10, 2024. No sample files are described in the primary listing, and the group has not publicly quantified how many individuals are affected. The City of Pleasanton has not yet released a separate breach notification detailing the precise categories of data involved, leaving residents to rely on the attacker’s claims for now.

Why This Matters for You and Your Family

When a municipal government like Pleasanton is hit, the records often include names, addresses, dates of birth, Social Security numbers, driver’s license details, tax filings, utility accounts, and employee payroll information for anyone who has interacted with city services. Even without an exact headcount, the exposure puts thousands of local families at risk of identity theft, fraudulent loan applications, and tax-refund fraud. If your family lives in or does business with Pleasanton, your personal information may already be in the hands of criminals who specialize in long-term extortion and data resale.

Doxxing and Identity-Chain Risks

Leaked municipal files rarely exist in isolation. Attackers can combine city records with information from earlier breaches to build detailed profiles that link your government ID to email accounts, phone numbers, family member names, and online usernames. These identity chains make it easier for criminals to hijack accounts, impersonate you to government agencies, or harass your household. Credential leaks like this one cascade into account takeovers, especially when the same passwords protect personal email, banking, or children’s gaming accounts. Once a single handle is tied to your real address and family details, the risk of doxxing grows rapidly.

ValenciaLeaks Track Record

Public reporting attributes ValenciaLeaks with emerging in mid-2024 as a ransomware and extortion operation. The group typically gains initial access through phishing, remote-desktop vulnerabilities, or compromised vendor credentials, then exfiltrates data before deploying ransomware. Their playbook centers on dual extortion: demanding payment to prevent file encryption and threatening to publish sensitive internal documents if the ransom is not paid. Notable prior victims include other small-to-medium public-sector and private organizations, though the group remains less prolific than older ransomware families. The Pleasanton listing follows their standard pattern of posting a victim name, data volume, and leak timestamp on their dark-web site.

What to do

  • Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity, with cleanup handled by Warden specialists.
  • Rotate any password you used for cityofpleasantonca.gov or related municipal portals anywhere it has been reused, and switch to 2FA through an authenticator app rather than SMS.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure surfaces in hours instead of months.
  • Cover the household with DoxxScan family protection that extends to dependents and children’s gaming accounts, which often chain back to the same home address and parent credentials.
  • Let remediation specialists manage takedown requests for any exposed personal documents appearing on data-broker or extortion sites.

The Pleasanton breach is a reminder that local government systems hold some of the most sensitive details about ordinary families, and attackers are increasingly willing to publish that information when ransoms go unpaid. Protecting yourself requires more than changing a password; it demands ongoing visibility into how your identity surfaces across the internet. DoxxScan by GalaxyWarden delivers that visibility through continuous monitoring across 13.1B+ breach records and 100+ platforms, AI-powered identity-chain mapping, hands-on remediation by specialists, and full household coverage that includes children’s gaming accounts. Start your DoxxScan trial today to close the gaps attackers count on.

What the free scan actually returns

Sample resultyou@email.comIllustrative — not a real person

Found on people-search siteswe remove these

These listings are live, public, and legal to remove — and removing them is what we do.

value redacted in this sampleage, relatives, address historySpokeo
value redacted in this samplephone, household, property recordsBeenVerified
value redacted in this sample582 companies checked

Found in breach recordsverifiedreported — unverified

Each record is labeled: confirmed breach data, or an attacker’s claim no one has verified.

verifiedvalue redacted in this samplepassword + phone · 2024telecom breach
unverifiedvalue redacted in this sampleclaimed in ransomware listing · 2026leak-site claim

Leaked data cannot be deleted from the internet — anyone claiming otherwise is lying. Broker listings can be removed. We do the second, and show you exactly what to fix from the first.

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Report details & sourcing

Severity High the filing does not enumerate what was exposed
Disclosed September 18, 2024
Last reviewed August 8, 2026
Affected Unconfirmed
Unverified claim — what this report is
This page documents a public listing on a ransomware/extortion group’s leak site, tracked via public threat-intelligence sources. A listing is the attacker’s claim. GalaxyWarden aggregates and reports such claims; we have not independently verified that a breach occurred, what data (if any) was taken, or the accuracy of anything the group asserts, and the named organisation has not necessarily confirmed the incident. Sections above describe what the listing shows and the group’s documented history — not verified findings about the named organisation. If you represent this organisation and believe anything here is inaccurate, tell us and we’ll review it promptly.
Editorial & sourcing policy
GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.
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