Was Synopsys hit by ransomware?

Synopsys was listed by the arkana 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 arkana ransomware group?

arkana 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 Synopsys breach?

arkana published data attributed to Synopsys. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Synopsys

Claimed by Arkana · listed 1 year ago

13m

Age

since listed · data leaked

Status timeline

ListedJun 6, 2025
Data leakeddate unknown

At a glance

Group: Arkana
Status: Data leaked
Country: United States
Sector: Technology
Listed on leak site: Jun 6, 2025

About the victim

AI dossier — public-source company profile

Synopsys is a leading provider of electronic design automation (EDA) software and semiconductor intellectual property (IP) solutions. Headquartered in Mountain View, California, the company serves semiconductor designers and manufacturers globally, helping them manage design complexity and optimize silicon performance.

Industry: Electronic Design Automation (EDA) & Semiconductor IP
Address: Mountain View, California, United States
Founded: 1986

Attack summary

Severity: high — Synopsys is a critical infrastructure vendor in semiconductor design; exfiltration of proprietary EDA tools, IP, or customer design data would pose significant risk to downstream semiconductor manufacturers and national security interests. Data published status confirms disclosure.

Arkana claims to have exfiltrated data from Synopsys. The specific scope and nature of the compromised data are not detailed in the leak post provided.

high

Original description

AI-summarised, not from the leak post

Synopsys is a leading company in electronic design automation (EDA) and semiconductor IP. It also provides software integrity tools. Founded in 1986 and headquartered in Mountain View, California, Synopsys offers innovative solutions that help designers manage complexity, develop high-quality, and high-performance silicon, meet critical time to market and power consumption requirements, and avoid costly redesigns.

Sources

Leak posthttp://ransomwvbabemdnwl7lzgeenyfmmhskaed6jcruwhkvapsia76vttzyd.onion/synopsys/

Source

Indexed 1 year 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 arkana

Arkana is a relatively new ransomware group that emerged in March 2025, operating with primarily financial motivations based on their targeting patterns and victim selection. Given their recent emergence and limited public documentation, specific details about their country of origin and operational structure remain unclear, though their targeting of US and UK entities suggests sophisticated capabilities and potential ties to established cybercriminal ecosystems. With only six documented victims to date, Arkana appears to follow a selective targeting approach, focusing on high-value sectors including financial services, technology, energy, and consumer services, though their specific initial access vectors, encryption methods, and whether they employ double or triple extortion tactics have not been publicly documented by major threat intelligence organizations. No notable high-profile campaigns or significant law enforcement actions have been reported against this group, likely due to their recent emergence and relatively small victim count. Arkana remains active as of the available intelligence, though their limited operational footprint suggests they are either a newly formed group still developing their capabilities or a highly selective operation focusing on carefully chosen targets. The group has been linked to 6 public disclosures across our corpus. First observed on a leak site on March 25, 2025; most recent post June 6, 2025. The operation is currently inactive.

Timeline of this disclosure

June 6, 2025Synopsys listed by arkanaon the group's public leak site

Other recent disclosures by arkana

arkana has been linked to 6 public victims on Darkfield. A sample of the most recent:

See the full arkana dossier →

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 3,549 disclosures indexed across all operators we track. Geographically, Synopsys is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by arkana means Synopsys 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 arkana'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.