Was IDS Group hit by ransomware?

IDS Group was listed by the Rhysida ransomware operation (United States) 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 Rhysida ransomware group?

Rhysida 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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IDS Group

Claimed by Rhysida · listed 3 months ago

185 GB

Data size

710 files records

Age

since listed · listed for ransom

Status timeline

ListedMay 27, 2026

Current state: Listed for ransom

At a glance

Group: Rhysida
Status: Listed for ransom
Country: United States
Sector: Engineering & Consulting
Listed on leak site: May 27, 2026
Data size: 185 GB
Records: 710 files

About the victim

AI dossier — public-source company profile

IDS Group is an award-winning multi-discipline design, engineering, and management consulting firm based in Southern California. The company provides design, engineering, and management consulting services.

Industry: Engineering & Consulting
Address: Southern California, US

Attack summary

Severity: medium — Data exfiltration claimed with auction announcement, but no proof files advertised, no specific data types disclosed, and no operational disruption stated. Medium reflects confirmed claim of data theft without detailed evidence of sensitivity or scale.

Rhysida claims to have exfiltrated data from IDS Group and is auctioning exclusive access to the stolen data with a 7-day bidding window. No operational encryption is explicitly mentioned.

medium

Data the group says was taken

AI dossier — extracted from the leak post

business data
consulting records

What the group claims

IDS Group is an award-winning multi-discipline design, engineering, and management consulting firm based in Southern California.

The leak post

captured from the group's site

IDS Group is an award-winning multi-discipline design, engineering, and management consulting firm based in Southern California.
With just 7 days on the clock, seize the opportunity to bid on exclusive, unique, and impressive data. Open your wallets and be ready to buy exclusive data. We sell only to one hand, no reselling, you will be the only owner!

Sources

Leak posthttp://rhysidafc6lm7qa2mkiukbezh7zuth3i4wof4mh2audkymscjm6yegad.onion/archive.php?last&auction

Source

Indexed 3 months 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 Rhysida

Rhysida is a ransomware group that emerged in June 2023, operating with primarily financial motivations through targeted attacks against critical infrastructure and public sector organizations. The group's origin and potential state affiliations remain unclear, though they operate independently rather than as a traditional Ransomware-as-a-Service model, with limited public documentation regarding connections to other cybercriminal organizations. Rhysida employs double extortion tactics, typically gaining initial access through compromised VPN credentials and exploiting vulnerable public-facing applications before deploying their ransomware payload and exfiltrating sensitive data prior to encryption. The group has demonstrated a particular focus on healthcare and educational institutions, with notable attacks documented by CISA and FBI advisories highlighting their targeting of hospitals and school districts across multiple countries, resulting in significant operational disruptions to critical services. As of late 2024, Rhysida remains an active threat with continued operations targeting organizations primarily in the United States, Canada, and other Western nations, maintaining their focus on high-value sectors where operational disruption can maximize ransom payment likelihood. The group has been linked to 287 public disclosures across our corpus. First observed on a leak site on June 5, 2023; most recent post August 15, 2026. The operation is currently active.

Timeline of this disclosure

May 27, 2026IDS Group listed by Rhysidaon the group's public leak site

Data size: 185 GB
Records: 710 files

Other recent disclosures by Rhysida

Rhysida has been linked to 287 public victims on Darkfield. A sample of the most recent:

See the full Rhysida dossier →

Sector and geography

This disclosure adds to ransomware activity in the Engineering & Consulting sector. Geographically, IDS Group is reported in United States, a country with 3,162 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Rhysida means IDS Group 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.
Report the incident to your national CERT, CISA (United States), as required for your jurisdiction.
Monitor for the data appearing on Rhysida'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.