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Recent Breaches › Guido Listed by akira Ransomware Group

HIGH severityUnverified claimHow we verify

Guido Listed by akira Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

RBRecent Breaches Breach Intelligence·August 2, 2023
Guido Listed by akira Ransomware Group

Reported August 2, 2023.

HIGH
Severity
August 2, 2023
Disclosed
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The Guido Listed by akira Ransomware Group (reported August 2, 2023) is an unverified claim; the data involved is undisclosed belonging to roughly unknown people. If you have an account with them, your information may now be circulating on the open web and with data brokers. Here’s exactly what happened, how to check if you were affected, and what to do next.

Severity & verification
HIGH severityUnverified claim
Data types not itemised.
Published on a ransomware group’s leak site — an unverified extortion claim until the named organization or credible reporting corroborates it.
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On August 02, 2023, the organisation Guido was listed by the Akira ransomware group, which claimed to have exfiltrated internal corporate files in a ransomware attack. Public detail remains limited: the number of people affected is unknown, and independent confirmation of the incident’s full scope has not been established beyond the group’s own statements.

The listing matters because it involves a privately held firm in commercial construction and building materials, a sector that routinely handles sensitive operational, financial and personnel records. Any confirmed exposure of such material can create lasting practical risks for employees, partners and the business itself.

What happened

According to the available record, Guido was named on an Akira-associated leak site on or around August 02, 2023. The group asserted that it had carried out a ransomware attack and exfiltrated internal files. In its own wording, Akira stated that Guido Companies is a privately held commercial construction and building materials firm and that the group held 115 GB of corporate data “including HR, accounting, financials and so on and so forth,” adding that interested parties should “feel free to check soon.”

No further verified timeline, intrusion method, ransom demand, or confirmation of data publication has been supplied in the public facts. The scale of any impact on individuals is listed as unknown. The incident is therefore known primarily through the threat actor’s claim rather than through detailed independent disclosure.

Inside akira

Akira is a ransomware operation that became active in the broader threat landscape in 2023. Like many contemporary groups, it has typically relied on double-extortion tactics: encrypting systems while also copying data and threatening to publish or sell it if payment is not made. The group has been observed targeting a range of organisations across multiple sectors, often gaining initial access through compromised credentials, exposed remote-access services or other common entry points, then moving laterally to locate and extract valuable files before deploying encryption.

Public reporting on Akira has consistently described leak-site postings as a pressure mechanism. Listings frequently include brief descriptions of the victim and claims about the volume or categories of stolen data. Such claims should be treated as assertions by the actors themselves until corroborated by the victim organisation, regulators or forensic investigators. Nothing in the present record confirms that Akira’s specific statements about Guido have been independently verified.

Guido and its sector

Guido, referred to in the actor’s summary as Guido Companies, is described as a privately held firm operating in commercial construction and building materials. Organisations of this type typically manage project documentation, supplier and subcontractor relationships, bidding and contract records, payroll and human-resources files, accounting ledgers, banking details and internal financial planning materials. Because construction projects often involve multiple external parties and long document retention periods, the volume of sensitive internal information can be substantial.

A breach affecting such a firm is consequential precisely because the data sets are operationally critical and often contain personal information about employees alongside commercially sensitive material. Disruption or exposure can affect day-to-day project delivery, contractual relationships and the privacy of individuals whose details appear in HR or financial systems.

What was likely exposed

The facts state that internal files were exfiltrated in a ransomware attack. Akira specifically claimed to hold 115 GB of corporate data that included HR, accounting and financial materials, among other categories described only as “and so on and so forth.” Exact file inventories, the presence or absence of customer data, and whether any material was ultimately published remain undisclosed in the public record.

Organisations in commercial construction and building materials commonly retain employee personal data (names, contact details, tax and payroll information, benefits records), vendor and subcontractor contracts, invoices, bank details, insurance documents and internal financial statements. It is reasonable to note that these categories align with the types of material Akira claimed to possess; however, the precise contents of the 115 GB set have not been independently confirmed and should not be treated as verified fact.

Why it matters

For individuals whose information may have been included—particularly current or former employees—the practical risks include potential misuse of personal identifiers, targeted phishing that references internal details, and longer-term exposure of financial or employment-related data. Even when the full extent of personal records is unknown, the mere presence of HR and accounting files raises the possibility that sensitive personal information was among the material taken.

For the organisation, consequences can include operational disruption, costs associated with incident response and system recovery, contractual or regulatory notification obligations, and reputational strain with clients and partners who rely on the firm’s ability to safeguard shared project and commercial information. Because the number of people affected remains unknown, the full human and business impact cannot yet be quantified from public sources alone.

Were you affected?

If you have a past or present connection to Guido—as an employee, contractor or close business partner—consider practical steps: monitor financial and email accounts for unusual activity, be cautious of unsolicited messages that reference internal company matters, and review any official notifications the organisation may issue. Because public detail on this incident is limited, confirmation of individual exposure may take time.

Readers can also run a free exposure scan of their email address to check whether their information has already surfaced in known breach data sets. Staying alert to official updates from the company remains the most direct way to learn whether personal records were involved.

AICompiled with AI assistance from public sources and published under our editorial standards.

Editorial & sourcing policy
Recent Breaches is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data, and we do not hold the data claimed in leak-site listings. Incidents are compiled from publicly accessible sources and threat-intelligence platforms and are reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — write to support@galaxywarden.com or press@recentbreaches.com.
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How this breach connects

Company

Attributed to

Method

CompanyGuido security record
88/100
DoxxScan™ · Low doxx risk
B 83Good record

1 reported incident on record.

See Guido’s full breach history →

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Source: threat-actor leak-site listing

Publicly posted by akira — unverified claim, pending independent verification

Breach listings — particularly those originating from ransomware or leak sites — are third-party claims that may be unverified, incomplete, or inaccurate. A listing does not by itself confirm that a breach occurred or that any specific data was exposed. Severity is an automated assessment, not a definitive rating. Verification status is shown where available.

Attributions to threat groups and methods reflect public reporting and, in some cases, unverified claims made by the groups themselves; they may be incomplete or later revised. Recent Breaches and GalaxyWarden are independent and are not affiliated with, and do not endorse, any company or group named on this page. This information is aggregated from public sources for awareness only and is not legal, security, or investment advice.

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