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high severity February 12, 2024 · 3 min read Unverified claim — what this is

SERCIDE Listed by alphv Ransomware Group

If you have an account with Sercide, here’s what is being claimed, and what it would mean for you.

CIDE has representation in around 600 municipalities distributed throughout Spain, 75% of them with a population of less than 5,000 inhabitants. CIDE - Association of Electrical Energy Distributors.

— from Alphv’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.
SERCIDE Listed by alphv Ransomware Group

On February 12, 2024, the Spanish electrical distribution association CIDE appeared on the leak site of the Alphv ransomware group. The listing states that internal files were exfiltrated during a ransomware attack on the organization, which represents electrical energy distributors operating in approximately 600 municipalities across Spain, the majority of them small communities with fewer than 5,000 residents. Although the exact number of individuals whose data may be affected remains unknown, anyone whose records passed through CIDE’s systems could now face heightened exposure.

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Details from the Leak Site

The Alphv leak page, still accessible via its .onion address as of the initial disclosure, claims that CIDE suffered a ransomware intrusion in which attackers successfully exfiltrated internal files before encryption. The listing does not quantify the volume or specific types of data taken, nor does it publish sample files. It simply identifies the victim as CIDE – Association of Electrical Energy Distributors and asserts that sensitive internal documentation was removed. Public mirrors of the leak site, such as ransomware.live, state the February 12, 2024 posting date and the group’s standard extortion format.

Why This Matters for You and Your Family

Even though CIDE primarily serves municipalities rather than individual households, its internal files likely contain correspondence, contracts, billing records, and personal details of residents in the communities it supports. If your electricity provider works with one of these distributors, your name, address, account numbers, or payment information may have been inside the stolen material. Small-town residents are especially exposed because local government and utility records often link directly to family addresses and children’s school or medical information. Once such data leaves a controlled environment, it circulates among criminals who specialize in turning it into identity theft, fraudulent accounts, or targeted scams against ordinary families.

Doxxing and Identity-Chain Risks

Utility and municipal records are high-value connectors in doxxing chains. A single leaked address or account number can be correlated with email addresses, phone numbers, and usernames found in other breaches, allowing attackers to map an entire household. This is particularly dangerous for gaming accounts used by children or teenagers; the same password or recovery email reused from a utility portal can hand over an Xbox, PlayStation, or Roblox profile, leading to further harassment and social engineering. The exposure does not stop at the initial breach. It creates persistent linkages that criminals can exploit for months or years.

Alphv’s Known Track Record

Public reporting attributes the Alphv group, also known as BlackCat, with emerging in late 2021 and rapidly becoming one of the most active ransomware operations. The gang has targeted organizations across healthcare, education, manufacturing, and local government, frequently listing victims on its leak site when ransom demands go unpaid. Their typical playbook involves initial access through compromised credentials or vulnerable remote desktop services, followed by lateral movement, data exfiltration, and then dual extortion: threatening both encryption and public release of stolen files. In many cases the group sets short deadlines for payment before publishing samples or full datasets. The CIDE listing follows this established pattern.

What to do

  • Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity, including any municipal or utility records that may have surfaced.
  • Rotate passwords used with any Spanish utility provider or local government portal and enable 2FA through an authenticator app rather than SMS.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure that touches your family is caught and addressed in hours, not months.
  • Cover the household with DoxxScan family protection that extends to dependents and children’s gaming accounts, which often chain back to the same addresses or recovery emails exposed in incidents like this.
  • Let remediation specialists handle takedown requests for any personal information already appearing on data broker sites or underground forums.

The breach of CIDE illustrates how even regional associations supporting essential services can become gateways to personal exposure for thousands of ordinary families. Staying ahead requires more than reactive checks; it demands ongoing visibility and expert intervention. DoxxScan by GalaxyWarden delivers exactly that through continuous monitoring across 13.1 billion+ breach records and over 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 this incident has opened.

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. That’s what a Deep Sweep buys.

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
Disclosed February 12, 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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