Was L3HARRIS hit by ransomware?

L3HARRIS was listed by the KYBER 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 KYBER ransomware group?

KYBER 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 L3HARRIS breach?

KYBER published data attributed to L3HARRIS. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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L3HARRIS

Claimed by Kyber · listed 4 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedJul 30, 2026
Data leakeddate unknown

At a glance

Group: Kyber
Status: Data leaked
Country: United States
Sector: Government & Defense
Listed on leak site: Jul 30, 2026

About the victim

AI dossier — public-source company profile

L3Harris Technologies is a global aerospace and defense technology company providing mission-critical solutions for government, defense, and commercial sectors. With over $21.9B in annual revenue and operations across 100+ countries, the company specializes in advanced defense systems including missile defense, propulsion, space launch engines, and naval monitoring systems.

Industry: Aerospace & Defense

Attack summary

Severity: critical — L3Harris is a major US government contractor handling classified defense systems (PAC-3 MSE, THAAD, submarine programs, NASA SLS). Any breach of their systems poses direct risk to national security infrastructure and classified government data, regardless of proof published in the leak post.

The kyber group claims to have breached L3Harris Technologies. The leak post contains no details regarding what data was exfiltrated, encryption status, or specific operational impact.

critical

What the group claims

L3Harris is a global aerospace and defense technology innovator that provides mission-critical solutions for government, defense, and commercial sectors.

Sources

Source

Indexed 4 hours 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 KYBER

KYBER is a ransomware operator currently tracked by Darkfield. The group has been linked to 1 public disclosures across our corpus. The operation is currently active.

Timeline of this disclosure

July 30, 2026L3HARRIS listed by KYBERon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Government & Defense sector, which has 4 disclosures indexed across all operators we track. Geographically, L3HARRIS is reported in United States, a country with 3,138 ransomware disclosures in our corpus.

If your organisation is affected

A listing by KYBER means L3HARRIS 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 KYBER'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.