Disclosure context

About payload

Based on the limited publicly available information, Payload is an emerging ransomware group first observed in February 2026 with a primarily financial motivation, having targeted 19 documented victims across multiple countries and sectors. The group's origin and affiliations remain unclear, with no documented evidence of their operational structure, country of origin, or whether they operate as a Ransomware-as-a-Service model or independent entity. Their attack methodology, encryption techniques, and specific tools used have not been publicly documented by major cybersecurity firms or law enforcement agencies. The group has demonstrated a diverse targeting approach, focusing primarily on victims in the Philippines, United States, United Kingdom, Mexico, and Dominican Republic, with particular emphasis on manufacturing, agriculture and food production, transportation/logistics, and telecommunication sectors, though the specific campaigns and ransom demands remain undisclosed in public threat intelligence reports. Given the group's recent emergence and limited public documentation, Payload appears to be currently active but remains a relatively obscure threat actor with insufficient publicly available data to establish comprehensive intelligence assessments from major cybersecurity organizations or law enforcement agencies. The group has been linked to 46 public disclosures across our corpus. First observed on a leak site on February 17, 2026; most recent post May 19, 2026. The operation is currently active.

Timeline of this disclosure

May 19, 2026Tang Seng Nitrogen & Pump Systems Pte. Ltd. listed by payloadon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 2,458 disclosures indexed across all operators we track. Geographically, Tang Seng Nitrogen & Pump Systems Pte. Ltd. is reported in SG, a country with 33 ransomware disclosures in our corpus.

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.

Ransomware victim disclosure

← All victims

Tang Seng Nitrogen & Pump Systems Pte. Ltd.

Claimed by payload · listed 2 days ago

Age

since listed · data leaked

Status timeline

Listed
May 19, 2026
Data leaked

At a glance

Group: payload
Status: Data leaked
Country: SG
Sector: Manufacturing
Listed on leak site: May 19, 2026

About the victim

AI dossier — public-source company profile

Tang Seng Nitrogen & Pump Systems Pte. Ltd. is a Singapore-based engineering and manufacturing company established in 1990. It specialises in designing, fabricating, and servicing equipment for the marine, oil and gas, and offshore industries. Its product portfolio includes nitrogen pumping units, industrial pumps, fire-fighting systems, and oil spill response equipment.

Industry: Marine & Offshore Industrial Equipment Manufacturing
Founded: 1990

Attack summary

Severity: medium — Data has been published (data_published status confirmed), indicating exfiltration occurred, but no details on data volume, type, or sensitivity are provided in the leak post, and no ransom amount or specific data categories are stated.

The ransomware group 'payload' claims to have attacked Tang Seng Nitrogen & Pump Systems Pte. Ltd. and has published data (disclosed status: data_published), though the specific nature of what was exfiltrated or encrypted and the volume of data at stake are not detailed in the leak post.

medium

What the group claims

Tang Seng Nitrogen & Pump Systems Pte. Ltd. is a Singapore-based engineering and manufacturing company established in 1990. It specializes in designing, fabricating, and servicing equipment for the marine, oil and gas, and offshore industries. Their product portfolio includes nitrogen pumping units, industrial pumps, fire-fighting systems, and oil spill response equipment.

The leak post

captured from the group's site

[ 
```
Elohim Law Corporation is a full-service law firm based in Singapore, operating since 2014.

The firm provides a comprehensive range of legal services, including corporate and commercial law, intellectual property protection, and civil or criminal litigation. They focus on delivering practical, customized solutions for individuals, startups, small and medium enterprises (SMEs), and international corporations alike.
```
](http://payloadrz5yw227brtbvdqpnlhq3rdcdekdnn3rgucbcdeawq2v6vuyd.onion/posts/10ce6aac-4a2d-4f5e-880c-943d762afcc7) [ Tang Seng Nitrogen & Pump Systems Pte. Ltd.  
```
Tang Seng Nitrogen & Pump Systems Pte. Ltd. is a Singapore-based engineering and manufacturing company established in 1990. It specializes in designing, fabricating, and servicing equipment for the marine, oil and gas, and offshore industries. Their product portfolio includes nitrogen pumping units, industrial pumps, fire-fighting systems, and oil spill response equipment.
```
](http://payloadrz5yw227brtbvdqpnlhq3rdcdekdnn3rgucbcdeawq2v6vuyd.onion/posts/acf6bc9f-c454-47cd-9ffd-36fbf55b0dc3) [ 
```
hs1992.jp is the official website of Kabushiki Gaisha Hodozuka Setsubi, a Japanese company speciali…

Screenshot of the leak post

Leak screenshot for Tang Seng Nitrogen & Pump Systems Pte. Ltd.

Sources

Leak posthttp://payloadrz5yw227brtbvdqpnlhq3rdcdekdnn3rgucbcdeawq2v6vuyd.onion/posts/acf6bc9f-c454-47cd-9ffd-36fbf55b0dc3

Source

Indexed 2 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.