high severity December 18, 2025 · 4 min read Unverified claim — what this is

RK Centers Listed by Sinobi Ransomware Group

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

RK Centers is a family-owned real estate development company specializing in the acquisition, development, and operation of prime open-air regional and community shopping centers in New England and South Florida. The company currently manages over 10,000,000 square feet of retail and office space, catering to a diverse clientele. With a focus on grocery-anchored and convenience retail centers, RK Centers aims to enhance community shopping experiences. Their extensive portfolio includes properties across multiple states, including Massachusetts, Florida, and Rhode Island.
— from Sinobi’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.

RK Centers Listed by Sinobi Ransomware Group

On December 18, 2025, family-owned real estate company RK Centers appeared on the leak site of the sinobi ransomware group. The attackers published what they describe as internal files exfiltrated during a ransomware incident at the firm, which manages more than 10 million square feet of retail and office space across Massachusetts, Florida, and Rhode Island.

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What Public Reporting Shows

Available reporting describes the incident as a ransomware attack in which sinobi claims to have stolen internal company documents. The leak site listing carries the date December 18, 2025. No specific count of affected individuals has been publicly confirmed, and the precise volume or sensitivity of the published files remains unclear from open sources. RK Centers has not released a detailed public statement on the breach as of the latest available information.

Internal files were allegedly exfiltrated, consistent with the typical ransomware playbook of data theft followed by extortion pressure. The company’s focus on commercial real estate means tenant information, vendor contracts, employee records, and financial documents could be among the exposed material, though exact contents have not been independently verified.

Why This Matters for You and Your Family

When a company like RK Centers suffers a breach, the ripple effects reach far beyond the business. If you or your family have ever shopped at, leased space in, or worked with any of their properties, your personal information may have been caught in the net. Addresses, phone numbers, email accounts, payment details, or even Social Security numbers tied to leases or employment can surface in these leaks.

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value redacted in this sampleage, relatives, address historySpokeo

value redacted in this samplephone, household, property recordsBeenVerified

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Found in breach recordsverifiedreported — unverified

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verifiedvalue redacted in this samplepassword + phone · 2024telecom breach

unverifiedvalue redacted in this sampleclaimed in ransomware listing · 2026leak-site claim

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Report details & sourcing

Attributed to Sinobi · 274 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed December 18, 2025

Last reviewed August 8, 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.

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Sinobi — 274 incidents tracked

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

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