Victim Claim
Marshall Dennehey
Claimed by
SilentRansomGroup
Listed on leak site
12 May 2026
Reported attack date
12 May 2026
Group claims tracked
21
Unverified claim.
This entry reproduces a listing published by the SilentRansomGroup group on its own extortion site.
Attackers routinely exaggerate or fabricate victims. Nothing here confirms that
Marshall Dennehey suffered a breach, or what data was actually taken.
About the organisation
They offered $100,000 to keep the data from being published. Founded in 1962 and headquartered in Phil…
What the listing means
Marshall Dennehey appeared on the SilentRansomGroup leak site on 12 May 2026. Groups publish a victim once negotiations stall or as pressure during them, so a listing usually means data was already exfiltrated. This group has not published new claims in the last 30 days.
Recommended actions
- Treat any unsolicited message referencing Marshall Dennehey as suspicious — leaked data gets weaponised for phishing within days.
- If you hold an account on marshalldennehey.com, change that password now, update it anywhere you reused it, and enable two-factor authentication.
- Other Business Services 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/TWFyc2hhbGwgRGVubmVoZXlAU2lsZW50UmFuc29tR3JvdXA=