DisclosureLens
GLOBALMalwareTelecom & MediaInformationRansomwareSpacebearsRansom DemandedActor NamedMedium

COMCAST CORPORATION

bd_9b4341d26e60b6bc · schema v1 · pii pii-v1

Severity

Medium

Discovered

Filed

Dec 7, 2025

To disclose

Affected

Not disclosed

Confidence

50%
Full breach record for COMCAST CORPORATION5 incidents on file

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group Spacebears 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.

Group activity: TelecommunicationDiscovered: 2025-12-08

Source: Ransomware.live

Post text · scraped from the leak site

As a global media and tech company, Comcast reaches hundreds of millions of customers, viewers, and guests with world-class connectivity and platforms and beloved content and experiences.The leak was made possible by Quasar Inc., a company that prepares technical documentation for Comсast and its Genesis project. The files contain design documentation for numerous cities, as well as detailed utility plans. https://corporate.comcast.com/

Incident timeline — mostly unverified

? — ?

Breach window unknown

Dec 7, 2025

Claim posted

No filing yet · watching

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

Claim → filing

Compliance clock

Not assessable

Tracked as a single-filing incident — the only disclosure on record for this event so far.Unverified claimView incident

Evidence ladder

Leak-site claimThis record

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filing

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

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.

About this groupFirst seen 2024-04-25

spacebears

According to ransomware.live, Space Bears is a double-extortion ransomware group that emerged in April 2024, distinguished by a professional "corporate" aesthetic on its leak site, leveraging Phobos RaaS infrastructure and targeting small-to-medium organizations in manufacturing, technology, and healthcare across the US and Europe.

157 tracked hereFull profile →