COMCAST CORPORATION
bd_4c95278c01663749 · schema v1 · pii pii-v1
Full breach record for COMCAST CORPORATION →5 incidents on fileThreat-actor claim — not a regulatory filing
This row is a claim by the ransomware group Medusa on its public extortion blog. It has not been validated by the victim or any regulator. Treat attribution and counts as the threat actor's assertion until a regulatory filing or victim disclosure corroborates them.
Source: Ransomware.live
Post text · scraped from the leak site
Comcast Corporation operates as a media and technology company worldwide. It operates through Residential Connectivity & Platforms, Business Services Connectivity, Media, Studios, and Theme Parks segments. The Residential Connectivity & Platforms segment provides residential broadband and wireless connectivity services, residential and business video services, sky-branded entertainment television networks, and advertising. The Business Services Connectivity segment offers connectivity services for small business locations, which include broadband, wireline voice, and wireless services, as well as solutions for medium-sized customers and larger enterprises; and small business connectivity services in the United Kingdom. company is headquartered in Comcast Center 1701 John F. Kennedy Boulevard Philadelphia, PA 19103 United States. 182,000 Employees. The total amount of data leakage is 834.4 GB
J jump to incidentP pin to compareR raw source
Incident timeline — mostly unverified
? — ?
Breach window unknown
Sep 26, 2025
Claim posted
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No filing yet · watching
Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.
Claim → filing
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Compliance clock
Not assessable
Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.
No regulatory filing corroborates this yet — it is the attacker's own assertion. Watch this entity to be notified the moment a filing corroborates or contradicts it.
Source ceiling
- actor name
- victim claim
- ransom/leak status
- discovery date
- materiality
- notification
- affected count
- confirmed data types
- compliance clock
The ✕ fields stay blank until a regulatory filing or victim disclosure lands.
medusa
According to ransomware.live, Medusa is a ransomware-as-a-service operation active since June 2021 that has targeted over 300 victims across critical infrastructure sectors including healthcare, education, legal, and manufacturing using double-extortion, with attacks surging 42% between 2023 and 2024 and a formal CISA advisory issued in early 2025.