Comcast

Disclosed Feb 8, 2016616,882 accountsUnverified

In November 2015, the US internet and cable TV provider Comcast suffered a data breach that exposed 590k customer email addresses and plain text passwords . A further 27k accounts appeared with home addresses with the entire data set being sold on underground forums.

What is known

People affected	616,882 (accounts in the leaked data, per Have I Been Pwned)
Disclosed	Feb 8, 2016
Happened	Nov 8, 2015
Attack	Not stated
Data exposed	EmailsPasswordsAddresses
Sector	Tech
Status	Unverified: not yet confirmed by an official notice, a filing or the organization
Check your email	Have I Been Pwned

Sources

Aggregatorhaveibeenpwned.com

Have I Been Pwned: Comcast

Notices filed

Accounts in the dataFeb 8, 2016

Have I Been Pwned616,882 people

Other breaches at Comcast

Comcast customer data stolen in ransomware attack on collector FBCSVendor breach exposed names, addresses, Social Security numbers, dates of birth and financial details.Vendor breach238K affectedTelecomUSOct 4, 2024

History of this record

Added2026-09-25

First recordedby backfillSource

First seen 2026-09-25 (Have I Been Pwned). Record counts are as reported. Not legal advice.

Everything about Comcast