Was Sharp Office hit by ransomware?

Sharp Office was listed by the thegentlemen ransomware operation (Australia), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the thegentlemen ransomware group?

thegentlemen is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the Sharp Office breach?

thegentlemen published data attributed to Sharp Office. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Sharp Office Systems Pty Ltd

listed as Sharp Office · Claimed by Thegentlemen · listed 5 days ago

Age

since listed · data leaked

Status timeline

ListedSep 7, 2026
Data leakeddate unknown

At a glance

Group: Thegentlemen
Status: Data leaked
Country: Australia
Sector: Professional Services
Listed on leak site: Sep 7, 2026

About the victim

AI dossier — public-source company profile

Sharp Office Systems is an independent Australian B2B office supplier founded in 1935 (originally John Sharp Business Systems), headquartered in Ingleburn NSW. It supplies over 25,000 stationery SKUs, office furniture, photocopiers, printers, laptops, and IT equipment, alongside managed print and IT services to businesses across Australia. ISO 9001:2015 and EcoVadis certified, it holds NSW government supplier status.

Industry: Office Equipment & Managed Print Services
Address: 89-93 Lambton Rd, Broadmeadow NSW 2292, Australia
Employees: 51-200
Founded: 1935

Attack summary

Severity: low — No proof files, screenshots, or data samples are advertised in the leak post. No specific data categories are claimed to have been exfiltrated. Post appears to be an announcement only, with no operational impact or data sensitivity indicators provided.

The thegentlemen group claims to have breached Sharp Office Systems and exfiltrated business data. The leak post does not specify encryption, data categories, or ransom demand; it appears to be a listing/announcement with no accompanying proof files or screenshots documented.

low

What the group claims

sharpoffice.com.au zoominfo.com/c/sharp-office/1306869482 Sharp Office is one of Australia's longest-running B2B office suppliers — heritage dating to 1935 (John Sharp Business Systems, Sydney), merged with Stafford Menser in 2011 into Sharp Office Systems Pty Ltd, HQ in Ingleburn NSW, serving clients Australia-wide. It's a one-stop B2B platform: 25,000+ stationery SKUs, office furniture, print & copy (HP, Canon, Ricoh, Kyocera), laptops/tech, plus Managed Print Services and managed IT — "one bill, one delivery, one invoice" for businesses. Its moats: ISO 9001:2015 + EcoVadis certification, NSW government supplier status, credit accounts with 14-day terms and personal account managers. Not related to Japan's Sharp Corporation — a fully independent Australian house. Bottom line: a 90-year-old quiet institutional survivor that evolved from typewriters to managed IT, winning government and club contracts through reliability rather than flash.

Sources

Victim sitesharpoffice.com.au

Source

Indexed 5 days ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About thegentlemen

thegentlemen is a ransomware group that emerged in September 2025, operating with apparent financial motivations based on their broad targeting of commercial sectors. The group has documented 267 victims across multiple countries, with primary focus on the United States, Thailand, France, Brazil, and India. Their targeting strategy demonstrates a preference for high-value sectors including manufacturing, technology, healthcare, and financial services organizations. Given the group's recent emergence and limited public documentation from established threat intelligence sources such as CISA, FBI, or major security research firms, specific details regarding their country of origin, operational structure, attack methodologies, encryption techniques, and whether they employ ransomware-as-a-service models remain unclear. The relatively high victim count of 267 in a short operational timeframe since September 2025 suggests either an aggressive campaign pace or potential inflation of victim numbers through affiliate operations, though without corroborating intelligence reports, the group's exact operational capabilities and notable campaigns cannot be definitively established. Current intelligence indicates the group remains active as of late 2025, though comprehensive threat profiling requires additional validated reporting from authoritative cybersecurity sources. The group has been linked to 838 public disclosures across our corpus. First observed on a leak site on September 9, 2025; most recent post September 9, 2026. The operation is currently active.

Also tracked as: the gentlemen.

Timeline of this disclosure

September 7, 2026Sharp Office listed by thegentlemen on the group's public leak site

Other recent disclosures by thegentlemen

thegentlemen has been linked to 838 public victims on Darkfield. A sample of the most recent:

See the full thegentlemen dossier →

Sector and geography

This disclosure adds to ransomware activity in the Professional Services sector, which has 17 disclosures indexed across all operators we track. Geographically, Sharp Office is reported in Australia, a country with 188 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means Sharp Office appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
Report the incident to your national CERT, ACSC (Australia), as required for your jurisdiction.
Monitor for the data appearing on thegentlemen's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.