high severity September 17, 2026 · 3 min read Unverified claim — what this is

hoyletanner.com Listed by Brain Cipher Ransomware Group

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

We have 33,500 (33.5k) files, the contents of which include: Contracts and agreements; Commercial proposals; Invoices; Customer database; HR ; W-9 tax forms; ACH/banking documents;...
— from Brain Cipher’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.

hoyletanner.com Listed by Brain Cipher Ransomware Group

Brain Cipher has listed hoyletanner.com on its leak site, claiming to hold 33,500 files containing contracts, commercial proposals, invoices, customer records, HR documents, W-9 tax forms, and ACH banking information. The company has not publicly confirmed the claim as of this writing. The filing date is September 17, 2026, and the record does not state when any alleged events occurred or how many individuals may be named across the files.

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If the listed material is genuine and was allegedly taken from Hoylet Tanner’s systems, the presence of banking details, W-9 forms, and customer records means attackers could attempt to file fraudulent tax returns, initiate unauthorized ACH transfers, or use the documents to support identity theft or business-impersonation attacks. Because no permanent government identifiers such as Social Security numbers or passport numbers are mentioned in the listing, the long-term identity-theft risk profile is lower than in many similar claims.

Your Password May Have Been Exposed — Act as If It Was

The group’s listing includes a note that a password field may have been exposed, but it does not disclose how the passwords were stored. Without knowing whether they were hashed with a strong, slow algorithm or stored in reversible form, the only safe stance is to treat your Hoylet Tanner account password as compromised. Change it immediately on hoyletanner.com and, more importantly, change it everywhere else you have reused the same password. Reused passwords are the single most common way one incident leads to account takeovers elsewhere.

What a Leak-Site Listing Actually Establishes

Ransomware-extortion groups frequently publish listings like this to pressure victims into paying. The appearance of a company name on such a site does not constitute proof that a breach occurred, that the files are authentic, or that they were obtained from the company’s own network. The listed material could be recycled from an earlier unrelated incident, assembled from public sources, or exaggerated to create leverage. Many such claims later prove overstated or false. Real confirmation would require an admission by the company, a regulatory filing that matches the details, or forensic evidence released by a trusted third party. Until then, this remains an unverified accusation by Brain Cipher.

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Found on people-search siteswe remove these

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value redacted in this sampleage, relatives, address historySpokeo

value redacted in this samplephone, household, property recordsBeenVerified

value redacted in this sample580 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.

Report details & sourcing

Attributed to Brain Cipher · 82 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed September 17, 2026

Last reviewed September 17, 2026

Affected Unconfirmed

By GalaxyWarden Threat Research · Editorial & sourcing standards

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.

Threat-actor tracker

Brain Cipher — 82 incidents tracked

Every breach we've attributed to Brain Cipher, in one running log. See who else they've hit →

Related breaches

high September 17, 2026