high severity August 24, 2026 · 2 min read Unverified claim — what this is

ptesm.com Listed by Blackwater Ransomware Group

If you are a customer of ptesm.com, here’s what is being claimed, and what it would mean for you.

Sinarmas Cepsa Pte. Ltd. is a joint venture between Cepsa and Sinar Mas Group, specializing in the production and marketing of oleochemicals, particularly fatty alcohols and their derivatives
— from Blackwater’s own leak-site posting. This is the group’s claim, quoted verbatim; it is not GalaxyWarden’s reporting and has not been independently verified.

ptesm.com Listed by Blackwater Ransomware Group

The Blackwater Ransomware Group has listed Sinarmas Cepsa Pte. Ltd. on its leak site. The company has not publicly confirmed the claim as of writing. The filing, dated August 24, 2026, does not state how many people were affected, does not specify when any claimed events occurred, and does not name any categories of information.

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What a Leak-Site Listing Actually Establishes

Leak-site postings by ransomware groups are claims, not evidence. Groups frequently publish listings to pressure victims into paying, and these listings sometimes contain recycled data from older incidents, exaggerated claims, or entirely fabricated entries. No independent party has verified that a breach took place here. Real confirmation would require the company to acknowledge the incident, a regulatory filing with specific details, or forensic evidence made public by a trusted third party. Until then, this remains an unverified accusation.

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The Pattern Blackwater Follows

Ransomware operators have repeatedly targeted manufacturing and chemical-sector businesses with similar leak-site pressure tactics. The pattern often mixes genuine compromises with overstated or reused claims. This does not tell you whether Sinarmas Cepsa was actually affected, but it does show why such listings alone rarely provide reliable information. When the next similar listing appears for another oleochemicals or industrial firm, the same uncertainty will apply. The only reliable signal remains direct notification from the organisation itself.

What Cannot Be Changed

Your focus stays on the account credential and any downstream effects if the password was reused elsewhere.

Concrete Steps You Can Take Today

Check for reuse of that password on every other site or service where you used it. Update those as well, starting with email, banking, and any site that holds financial data.
Monitor your accounts for unusual login attempts or activity in the coming weeks. Set up alerts where possible.
Contact Sinarmas Cepsa directly to ask whether they have sent or will send any customer notification. The filing does not state when any incident occurred, so a letter remains the clearest way to learn if you are in any affected group. If you have moved addresses since the events in question, reach out to them anyway.

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What the free scan actually returns

Sample resultyou@email.comIllustrative — not a real person

Found on people-search siteswe remove these

These listings are live, public, and legal to remove — and removing them is what we do.

value redacted in this sampleage, relatives, address historySpokeo

value redacted in this samplephone, household, property recordsBeenVerified

value redacted in this sample580 companies checked

Found in breach recordsverifiedreported — unverified

Each record is labeled: confirmed breach data, or an attacker’s claim no one has verified.

verifiedvalue redacted in this samplepassword + phone · 2024telecom breach

unverifiedvalue redacted in this sampleclaimed in ransomware listing · 2026leak-site claim

Leaked data cannot be deleted from the internet — anyone claiming otherwise is lying. Broker listings can be removed. We do the second, and show you exactly what to fix from the first.

Check your exposure

ptesm.com is one listing. Your email is probably in others.

We can’t confirm any single incident against the sources we search, so we won’t pretend to. What we can show you is your own exposure — your email against 13.1B+ leaked records and the sites that publish your address. About 15 seconds. No account, no card.

Report details & sourcing

Attributed to Blackwater · 11 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed August 24, 2026

Last reviewed August 24, 2026

Affected Unconfirmed

By GalaxyWarden Threat Research · Editorial & sourcing standards

Unverified claim — what this report is

This page documents a public listing on a ransomware/extortion group’s leak site, tracked via public threat-intelligence sources. A listing is the attacker’s claim. GalaxyWarden aggregates and reports such claims; we have not independently verified that a breach occurred, what data (if any) was taken, or the accuracy of anything the group asserts, and the named organisation has not necessarily confirmed the incident. Sections above describe what the listing shows and the group’s documented history — not verified findings about the named organisation. If you represent this organisation and believe anything here is inaccurate, tell us and we’ll review it promptly.

Editorial & sourcing policy

GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.

Sources: Blackwater leak site (via RansomLook)

Threat-actor tracker

Blackwater — 11 incidents tracked

Every breach we've attributed to Blackwater, in one running log. See who else they've hit →

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