Was Weizmann Institute of Science hit by ransomware?

Weizmann Institute of Science was listed by the Handala ransomware operation (Israel), 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 Handala ransomware group?

Handala 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 Weizmann Institute of Science breach?

Handala published data attributed to Weizmann Institute of Science. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

← All victims

Weizmann Institute of Science

Claimed by Handala · listed 1 year ago

13m

Age

since listed · data leaked

Status timeline

ListedJun 18, 2025
Data leakeddate unknown

At a glance

Group: Handala
Status: Data leaked
Country: Israel
Sector: Education
Listed on leak site: Jun 18, 2025

About the victim

AI dossier — public-source company profile

The Weizmann Institute of Science is a leading international research institution located in Rehovot, Israel, founded in 1934. It conducts advanced research across physics, chemistry, biology, mathematics, and computer science, with significant focus on both fundamental and applied sciences.

Industry: Scientific Research & Higher Education
Address: Rehovot, Israel
Employees: 1000-1500
Founded: 1934

Attack summary

Severity: high — Claimed breach of core infrastructure of a major research institution with potential access to sensitive scientific research and systems; disclosure status indicates data published; however, specific data categories and proof counts are not provided in excerpt.

Handala Group claims to have breached and compromised core infrastructure of the Weizmann Institute of Science in a coordinated hybrid operation. The group characterizes the institution as involved in military and weapons development, though specific data exfiltration claims or proof of data publication are not detailed in the provided excerpt.

high

Data the group says was taken

AI dossier — extracted from the leak post

core infrastructure systems
research data

What the group claims

In a complex, coordinated hybrid operation, the Handala Group has successfully breached and compromised the core infrastructure of the Weizmann Institute of Science , an institution deeply embedded in the architecture of occupation, military aggression, and the development of weapons of mass destruction. This institute is not merely an academic body , it is a…

Sources

Leak posthttp://vmjfieomxhnfjba57sd6jjws2ogvowjgxhhfglsikqvvrnrajbmpxqqd.onion/?p=345

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.

Is this your supplier? Your competitor? You?

Pro plans monitor your domain, corporate emails, and crypto wallets across every new ransomware leak-site post, breach dump and Telegram callout — alerts within 5 minutes.

Disclosure context

About Handala

Handala is a recently emerged ransomware group that first appeared in May 2024, primarily motivated by financial gain with potential geopolitical overtones given their targeting patterns. The group's country of origin remains unclear, though their focus on Israeli targets alongside Western nations suggests possible Middle Eastern connections or sympathies, and it is unknown whether they operate as a standalone group or utilize a Ransomware-as-a-Service model. Limited public information exists regarding their specific attack methodologies, initial access vectors, or technical capabilities, though their rapid accumulation of 164 documented victims suggests they employ effective compromise techniques across multiple sectors including technology, government, energy, and healthcare organizations. The group has demonstrated a clear preference for targeting victims in Israel, the United States, and the United Kingdom, with additional activity observed in Iran and the UAE, indicating either opportunistic targeting or strategic selection based on geopolitical considerations. Given their recent emergence and continued victim acquisitions throughout 2024, Handala appears to remain active, though comprehensive technical analysis and law enforcement reporting on their operations remain limited due to their relatively short operational history. The group has been linked to 182 public disclosures across our corpus. First observed on a leak site on May 26, 2024; most recent post April 15, 2026. The operation is currently active.

Timeline of this disclosure

June 18, 2025Weizmann Institute of Science listed by Handalaon the group's public leak site

Other recent disclosures by Handala

Handala has been linked to 182 public victims on Darkfield. A sample of the most recent:

See the full Handala dossier →

Sector and geography

This disclosure adds to ransomware activity in the Education sector, which has 1,085 disclosures indexed across all operators we track. Geographically, Weizmann Institute of Science is reported in Israel, a country with 156 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Handala means Weizmann Institute of Science 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, CERT-IL (Israel), as required for your jurisdiction.
Monitor for the data appearing on Handala'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.