Was Stanley Electric U.S. hit by ransomware?

Stanley Electric U.S. was listed by the Royal ransomware operation (United States), 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 Royal ransomware group?

Royal 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 Stanley Electric U.S. breach?

Royal published data attributed to Stanley Electric U.S. (~2 TB). Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Stanley Electric U.S.

Claimed by Royal · listed 3 years ago

2 TB

Data size

39m

Age

since listed · data leaked

Status timeline

ListedApr 10, 2023
Data leakeddate unknown

At a glance

Group: Royal
Status: Data leaked
Country: United States
Sector: Energy
Listed on leak site: Apr 10, 2023
Data size: 2 TB

About the victim

AI dossier — public-source company profile

Stanley Electric U.S. is a manufacturer of automotive lighting and electrical components headquartered in London, Ohio, serving North American demand for lighting solutions. The company produces motorcycle and automotive lighting equipment as a supplier to major OEMs including Honda and Nissan. It is a U.S. subsidiary of Stanley Electric Co., Ltd. (Japan).

Industry: Automotive & Motorcycle Lighting Manufacturing
Address: 420 East High Street, London, Ohio 43140

Attack summary

Severity: critical — The group claims confirmed exfiltration of regulated PII at scale — thousands of SSNs, passports, and medical/health records — alongside sensitive business data totalling over 2 TB, meeting the threshold for critical severity due to the volume of regulated personal and medical data.

The Royal ransomware group claims to have exfiltrated more than 2 TB of data from Stanley Electric U.S., including employee PII (SSNs, passports, medical and vaccination records), details of business relationships with major corporate partners, internal incidents and violations, confidential information, and contracts. The group states the data will be published imminently.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Employee Social Security Numbers (SSNs)
Employee passport documents
Employee medical information
Employee vaccination records
Business contracts
Confidential corporate information
Incident and violation records
Business relationship details (JP Morgan, Nissan, Honda)

What the group claims

Stanley Electric US is a manufacturer of motorcycle and automotive lighting equipment for Honda and Nissan. This real big fish is going to lose it's internal data of a great size - more than 2TBs. We have not only interesting details about their cooperation with big business names like JP Morgan, Nissan, Honda and others, but also their employees' personal information: thousands of SSNs, passports, medical information, vaccination information. And there are more: incidents, violations, confidential info, tons of contracts and so on and so forth.Priceless data for you soon.

Sources

Source

Indexed 3 years 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 Royal

Royal is a financially motivated ransomware group that emerged in November 2022, quickly establishing itself as a significant threat with over 200 documented victims across multiple sectors. The group is believed to operate independently rather than as a ransomware-as-a-service model, though their exact country of origin remains unclear based on publicly available intelligence. Royal primarily gains initial access through phishing campaigns and exploitation of remote desktop protocols, subsequently deploying custom ransomware that encrypts victim files while exfiltrating sensitive data for double extortion tactics. The group has demonstrated a preference for targeting critical infrastructure and public services, with notable attacks against educational institutions, healthcare facilities, and government entities primarily in the United States, though they have also significantly impacted organizations across Germany, the United Kingdom, Canada, and France. Their encryption methodology involves custom-built malware that systematically encrypts files while maintaining persistence on compromised networks. As of recent reporting from federal agencies including CISA and FBI advisories, Royal remains an active threat with ongoing campaigns targeting organizations across their preferred sectors, particularly focusing on entities with limited cybersecurity resources that may be more likely to pay ransom demands. The group has been linked to 211 public disclosures across our corpus. First observed on a leak site on November 4, 2022; most recent post July 19, 2023. The operation is currently inactive.

Timeline of this disclosure

April 10, 2023Stanley Electric U.S. listed by Royalon the group's public leak site

Data size: 2 TB

Other recent disclosures by Royal

Royal has been linked to 211 public victims on Darkfield. A sample of the most recent:

See the full Royal dossier →

Sector and geography

This disclosure adds to ransomware activity in the Energy sector, which has 652 disclosures indexed across all operators we track. Geographically, Stanley Electric U.S. is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Royal means Stanley Electric U.S. 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, CISA (United States), as required for your jurisdiction.
Monitor for the data appearing on Royal'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.