comcast.net
Apr 14, 2026
A breach of Comcast (comcast.net), a major US internet service provider and cable company. The archive contains three files: a list of approximately 27,000 customer records with email addresses, full names, and physical addresses (27kAddress.txt); a file of approximately 590,000 customer email:password credential pairs (customers590k.txt); and a BreachForums attribution file (Breached_Info.txt). Passwords appear to be stored in plaintext. The data exposes Comcast subscriber accounts including home addresses across the United States. The archive was distributed via BreachForums.
Data found in this dataset
Source files
Expand any file to inspect its column headers and the LLM's field-mapping reasoning, recorded during ingestion.
27kAddress.txt3 columns27,262 rows
File structure
Format: CSV·Delimiter: comma·Has header: no·Quote: "
| Source column | Mapped field | Confidence | LLM assessment |
|---|---|---|---|
| 0 | high | [0] values are all @comcast.net email addresses | |
| 1 | fullName | high | [1] values are full names (e.g. 'Donnie Baskin', 'Dorothy Spencer'); some entries are single names only |
| 2 | address1 | high | [2] values are full concatenated street addresses including street, city, state, and ZIP (e.g. '603 East 27 St Old Hickory TN 37138'); no separate city/state/zip columns present |
Notes: 3-column headerless CSV. Column 2 contains the full address as a single string combining street address, city, state, and ZIP code — no separate city/state/zip fields. Column 1 contains names ranging from full names to single names (first only or last only). This is the 27kAddress.txt file from the comcast-bf breach containing approximately 27,000 Comcast customer records.
Breached_Info.txt0 rows
File structure
Notes: No parseable tabular data was provided in the sample. The 50 rows consist entirely of a BreachForums attribution/header message with no delimited columns or PII fields visible. Cannot perform column mapping without actual data rows. Based on breach context, the customers590k.txt file is expected to contain email and password fields, and 27kAddress.txt is expected to contain email, fullName, and address fields — but this cannot be confirmed from the provided sample.
customers590k.txt2 columns590,298 rows
File structure
| Source column | Mapped field | Confidence | LLM assessment |
|---|---|---|---|
| 0 | high | All values are @comcast.net email addresses | |
| 1 | password | high | Plaintext passwords of varying formats and lengths |
Notes: Standard email:password combo list from Comcast subscriber breach. All emails are @comcast.net addresses. Passwords are stored and exposed in plaintext.