Leviton

About the organisation

About Leviton Founded in 1906 and headquartered in Melville, New York, Leviton is a privately held global provider of electrical wiring devices, data center connectivity solutions, and lighting energy management systems. A major cyber attack has resulted in the Leviton company losing control over its entire repository of sensitive data, totaling approximately 1.4 terabytes. The massive breach exposed a wide range of highly confidential information, including internal financial records, proprietary project schematics and working documents, as well as the personal data of employees. Additionally, a significant quantity of other unclassified but highly sensitive information was exfiltrated in the breach, painting a stark picture of a total system compromise.

What the listing means

Leviton appeared on the Dark Project leak site on 05 August 2026. Groups publish a victim once negotiations stall or as pressure during them, so a listing usually means data was already exfiltrated — the attack itself is dated 31 July 2026, 4 days before the listing. This group has published 7 claims in the last 30 days and remains active.

Recommended actions

• Treat any unsolicited message referencing Leviton as suspicious — leaked data gets weaponised for phishing within days.
• If you hold an account on www.leviton.com, change that password now, update it anywhere you reused it, and enable two-factor authentication.
• Other Manufacturing organisations should review this group's known TTPs and validate detection coverage against them.
• Watch for follow-on extortion: stolen data is often re-leaked or resold after the initial listing.
• A leak-site listing is a claim made by the attacker, not a confirmed breach — check the organisation's own disclosures before acting on it.

Leak-site evidence

Listing URL https://www.ransomware.live/id/TGV2aXRvbkBEYXJrIFByb2plY3Q=

Show leak-site screenshot

Captured from the group's extortion site. It may contain the victim's data or the attacker's messaging.