Was Tesco Engineer Co., Ltd. hit by ransomware?

Tesco Engineer Co., Ltd. was listed by the Deadlock ransomware operation (Thailand) as a victim being extorted; data had not been published at the time of listing. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the Deadlock ransomware group?

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

Ransomware victim disclosure

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Tesco Engineer Co., Ltd.

Claimed by Deadlock · listed 3 hours ago

Today

Age

since listed · listed for ransom

Status timeline

ListedAug 10, 2026

Current state: Listed for ransom

At a glance

Group: Deadlock
Status: Listed for ransom
Country: Thailand
Sector: Construction / Manufacturing
Listed on leak site: Aug 10, 2026

About the victim

AI dossier — public-source company profile

Tesco Engineer Co., Ltd. is a Thai construction and manufacturing company based in Bangkok that has operated in civil engineering and industrial pipe manufacturing since 1976.

Industry: Construction & Civil Engineering / Industrial Pipe Manufacturing
Address: Bangkok, Thailand
Founded: 1976

Attack summary

Severity: low — Company is only listed/announced on the leak site with no proof files, data inventory details, or operational impact disclosed.

The Deadlock group has listed Tesco Engineer Co., Ltd. on their leak site, indicating a claimed compromise. No specific details regarding encryption, exfiltration, or data types are provided in the post.

low

What the group claims

A Thai construction and manufacturing company based in Bangkok, operating in civil engineering and industrial pipe manufacturing since 1976.

The leak post

captured from the group's site

Publishes after: <b>12d 12h 22m</b>
United Fiber Optic Communication Inc. (UFOC) is an established, publicly traded telecommunications company from Taiwan. The company acts as a total solution provider for communication networks and specializes in the manufacture of fiber optic cables and the provision of integrated technological systems. 
Publishes after: <b>2d 6h 0m</b>
K&A Machmouchi Pharma Holding a leading Lebanese company in the field of pharmaceutical import, storage and distribution. 
Ahenk Laboratuvarı is an ISO 15189-accredited medical laboratory in Turkey, founded in 1998 and located in Istanbul-Şişli. The company offers services in clinical biochemistry, microbiology, pathology, and genetics, and collaborates with Limbach Laboratories in Germany. 
Pasello Trattamenti Termici Srl , an Italian specialist company for the heat treatment of metal alloys.
(Laboratorio de Diagnóstico y Aplicaciones Terapéuticas, SA), a Spanish biopharmaceutical company founded in 1999 and headquartered in Madrid.The company specializes in the research, development and manufacture of products for allergy diagnostics and allergen immunotherapy (ASIT). 
Takis Biotech is an Italian biotechnology c…

Screenshot of the leak post

Leak screenshot for Tesco Engineer Co., Ltd.

Sources

Leak posthttp://deadblogdbdu5wprek7wa2o4ce7rnt6u6ntqeud3hzjjcveosgpsqqqd.onion

Source

Indexed 3 hours 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 Deadlock

Deadlock is a ransomware group first observed in June 2026 with an apparent financial motivation, having claimed responsibility for attacks against at least 10 known victims across a geographically diverse target set. Given the recency of their emergence and limited public documentation by major threat intelligence organizations such as CISA, FBI, or Mandiant at this time, a comprehensive technical profile cannot be fully established. Based on available victimology data, the group has demonstrated a targeting pattern spanning Singapore, China, Sweden, Spain, and Nigeria, suggesting an opportunistic or globally distributed operational scope rather than a regionally focused campaign. Targeted sectors include manufacturing, business services, telecommunications, and financial services, indicating a preference for industries with high operational dependencies and potential for significant disruption, which is consistent with financially motivated ransomware actors seeking maximum leverage for ransom payment. No confirmed attribution regarding country of origin, RaaS affiliation, or specific tooling has been publicly documented by authoritative sources as of this profile's preparation. Due to the group's nascent operational timeline and the limited volume of publicly verified intelligence, analysts should treat this profile as preliminary and subject to significant revision as additional technical indicators, victim disclosures, and research reporting become available. Continued monitoring is advised given the cross-sector and cross-regional targeting behavior observed in this early operational phase. The group has been linked to 104 public disclosures across our corpus. First observed on a leak site on June 15, 2026; most recent post August 10, 2026. The operation is currently active.

Timeline of this disclosure

August 10, 2026Tesco Engineer Co., Ltd. listed by Deadlockon the group's public leak site

Other recent disclosures by Deadlock

Deadlock has been linked to 104 public victims on Darkfield. A sample of the most recent:

See the full Deadlock dossier →

Sector and geography

This disclosure adds to ransomware activity in the Construction / Manufacturing sector. Geographically, Tesco Engineer Co., Ltd. is reported in Thailand, a country with 63 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Deadlock means Tesco Engineer Co., Ltd. appeared on a ransomware extortion site and is being pressured to pay before any publication. 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.
Monitor for the data appearing on Deadlock'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.