Comcast Company Cyber Security Posture

comcast.com

Welcome to Comcast. From the connectivity and platforms we provide to the content and experiences we create, we bring people together, globally. Our people think the world of our work, and thatโ€™s why our work is the best in the world.

Comcast Company Details

Linkedin ID:

comcast

Employees number:

60535 employees

Number of followers:

667997.0

NAICS:

517

Industry Type:

Telecommunications

Homepage:

comcast.com

IP Addresses:

819

Company ID:

COM_2880559

Scan Status:

In-progress

AI scoreComcast Risk Score (AI oriented)

Between 900 and 1000

This score is AI-generated and less favored by cyber insurers, who prefer the TPRM score.

globalscoreComcast Global Score
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Ailogo

Comcast Company Scoring based on AI Models

Model NameDateDescriptionCurrent Score DifferenceScore
AVERAGE-Industry03-12-2025

This score represents the average cybersecurity rating of companies already scanned within the same industry. It provides a benchmark to compare an individual company's security posture against its industry peers.

N/A

Between 900 and 1000

Comcast Company Cyber Security News & History

Past Incidents
7
Attack Types
3
EntityTypeSeverityImpactSeenUrl IDDetailsView
ComcastBreach85409/2015COM13519422Link
Rankiteo Explanation :
Attack with significant impact with customers data leaks

Description: Comcast, a US company, suffered a data breach incident in September 2015. The breach compromised the personal details of about 75,000 of its customers. The company had offered $100 to the affected customers and $25 million to the state agencies as compensation.

ComcastBreach100411/2015COM1740261023Link
Rankiteo Explanation :
Attack with significant impact with customers data leaks

Description: A BlackMarket on the dark web was offering about 590,000 Comcast email addresses and passwords for sale. The seller presented a list of 112 accounts asking for $300 USD for 100,000 accounts, and the complete list of 590,000 accounts sells for $1,000 USD as evidence of the reliability of the Comcast data. Approximately 200,000 out of the 590,000 records that were being sold on the illicit market were still active, according to Comcast, which was in possession of the list and had been examining the exposed information. The systems of Comcast have not been penetrated, according to the company's security staff, and each subscriber who reports unusual behaviour on his account will be contacted individually to address the problem.

ComcastBreach60312/2023COM152251223Link
Rankiteo Explanation :
Attack with significant impact with internal employee data leaks

Description: Xfinity by Comcast reports a data breach following a cyberattack that took use of the CitrixBleed vulnerability. By taking use of this vulnerability, threat actors were able to take over active authenticated connections and get around multifactor authentication and other stringent authentication regulations. The security company Mandiant saw threat actors taking control of sessions in which the threat actor used session data that had been taken prior to the patch being deployed. The business discovered that hashed passwords and usernames are among the different client data that is exposed.

ComcastBreach85410/2024COM000100824Link
Rankiteo Explanation :
Attack with significant impact with customers data leaks

Description: The data breach at Financial Business and Consumer Solutions (FBCS) impacted approximately 238,000 Comcast customers after a ransomware attack. The incident involved unauthorized access between February 14 and February 26, 2024, where attackers could view or acquire sensitive information. The compromised data included names, Social Security numbers, and account details. While FBCS is not aware of further misuse of the data, Comcast is providing affected individuals with free credit monitoring services for a year.

ComcastData Leak50205/2018COM12229722Link
Rankiteo Explanation :
Attack limited on finance or reputation

Description: A bug in Comcast's website used to activate Xfinity compromised sensitive information on the company's customers. The website, used by customers to set up their home internet and cable service, was used to trick into displaying the home address where the router is located, as well as the Wi-Fi name and password. Only a customer account ID and that customer's house or apartment number are needed, even though the web form asks for a full address. That information could be grabbed from a discarded bill or obtained from an email. The bug returns data even if the Xfinity Wi-Fi is already switched on. It's also possible to rename Wi-Fi network names and passwords, temporarily locking users out.

ComcastData Leak85408/2018COM22281122Link
Rankiteo Explanation :
Attack with significant impact with customers data leaks

Description: Comcast Xfininty's login page had a bug that allowed anyone to gain access to the partial Social Security Numbers and partial home addresses of over 26.5 million customers. The company patched the bug quickly after being notified of its existence.

ComcastRansomware100410/2024COM000101324Link
Rankiteo Explanation :
Attack with significant impact with customers data leaks

Description: Comcast was affected by a data breach at Financial Business and Consumer Solutions (FBCS), a third-party agency providing collection-related services. The breach exposed personal data of approximately 238,000 customers, including names, addresses, Social Security numbers, dates of birth, and Comcast account details. The incident was the result of unauthorized network access and a ransomware attack at FBCS between February 14 and 26, 2024. Comcast ceased working with FBCS in 2020, but due to data retention requirements, FBCS still held Comcast customer data from around 2021. While FBCS has not observed misuse of the compromised data, Comcast offered one year of credit monitoring and identity protection services to impacted individuals.

Comcast Company Subsidiaries

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Welcome to Comcast. From the connectivity and platforms we provide to the content and experiences we create, we bring people together, globally. Our people think the world of our work, and thatโ€™s why our work is the best in the world.

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Comcast Cyber Security News

2025-06-24T07:00:00.000Z
Cybersecurity Strategies for County Government

This session explores practical and scalable cybersecurity strategies tailored to the unique challenges of local government operationsโ€”and howย ...

2025-06-09T07:00:00.000Z
US agencies assessed Chinese telecom hackers likely hit data center and residential internet providers

The FBI concurred with other agency assessments that the Salt Typhoon attacks, broadly speaking, are the most egregious national security breachย ...

2025-04-01T07:00:00.000Z
Comcast Business Closes Nitel Buy For Network-as-a-Service, Cybersecurity Boost

โ€œThe completion of the Nitel acquisition is a significant milestone for Comcast Business. It strengthens our ability to deliver advanced,ย ...

2024-10-07T07:00:00.000Z
Comcast Business 2024 Cybersecurity Threat Report: Artificial Intelligence Drives New Era of Cyber Threats and Defenses

The report provides CISOs, CIOs, and security leaders with a deep dive into how cyber threats can breach and then spread across global networks.

2025-06-05T07:00:00.000Z
Comcastโ€™s (CMCSA) DataBee Adds AI-Powered BluVector to Cybersecurity Portfolio

According to DataBee, the platform's patented ML engine can identify zero-day malware, file-less attacks, and polymorphic threats withoutย ...

2025-04-07T02:10:02.000Z
Comcast Business Dishes Up SD-WAN Connectivity for Julius Silvert

Comcast Business is providing Julius Silvert, the premier food distribution company in the Northeast and Mid-Atlantic, with connectivity and cybersecurityย ...

2024-10-07T07:00:00.000Z
Comcast says customer data stolen in ransomware attack on debt collection agency

U.S. telecom giant Comcast has warned that cybercriminals stole the personal data of more than 230,000 customers during a ransomware attack on aย ...

2025-05-08T07:00:00.000Z
5 Tech Tips for Small Business Success with Comcast Business

5 Tech Tips for Small Business Success with Comcast Business ยท 1. Get Onlineโ€“the Right Way ยท 2. Incorporate Emerging Technology ยท 3. Prioritizeย ...

2024-10-24T07:00:00.000Z
High Stakes in Cyber Defense: Key Cybersecurity Lessons for Business Leaders

Here are three things every organization in Alexandria and beyond, regardless of size, should know about protecting against cyber breaches.

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faq

Frequently Asked Questions

Explore insights on cybersecurity incidents, risk posture, and Rankiteo's assessments.

Comcast CyberSecurity History Information

How many cyber incidents has Comcast faced?

Total Incidents: According to Rankiteo, Comcast has faced 7 incidents in the past.

What types of cybersecurity incidents have occurred at Comcast?

Incident Types: The types of cybersecurity incidents that have occurred incidents Breach, Data Leak and Ransomware.

What was the total financial impact of these incidents on Comcast?

Total Financial Loss: The total financial loss from these incidents is estimated to be $25 million.

How does Comcast detect and respond to cybersecurity incidents?

Detection and Response: The company detects and responds to cybersecurity incidents through communication strategy with Comcast offered one year of credit monitoring and identity protection services to impacted individuals and third party assistance with Mandiant and remediation measures with Contacting subscribers reporting unusual behavior and containment measures with patched the bug quickly.

Incident Details

Can you provide details on each incident?

Incident : Data Breach

Title: Comcast Data Breach via Third-Party Vendor

Description: Comcast was affected by a data breach at Financial Business and Consumer Solutions (FBCS), a third-party agency providing collection-related services. The breach exposed personal data of approximately 238,000 customers, including names, addresses, Social Security numbers, dates of birth, and Comcast account details. The incident was the result of unauthorized network access and a ransomware attack at FBCS between February 14 and 26, 2024. Comcast ceased working with FBCS in 2020, but due to data retention requirements, FBCS still held Comcast customer data from around 2021. While FBCS has not observed misuse of the compromised data, Comcast offered one year of credit monitoring and identity protection services to impacted individuals.

Date Detected: 2024-02-26

Type: Data Breach

Attack Vector: Unauthorized Network Access, Ransomware

Incident : Data Breach, Ransomware

Title: Data Breach at Financial Business and Consumer Solutions (FBCS)

Description: The data breach at Financial Business and Consumer Solutions (FBCS) impacted approximately 238,000 Comcast customers after a ransomware attack. The incident involved unauthorized access between February 14 and February 26, 2024, where attackers could view or acquire sensitive information. The compromised data included names, Social Security numbers, and account details. While FBCS is not aware of further misuse of the data, Comcast is providing affected individuals with free credit monitoring services for a year.

Date Detected: February 26, 2024

Type: Data Breach, Ransomware

Attack Vector: Unauthorized Access

Incident : Data Breach

Title: Xfinity by Comcast Data Breach

Description: Xfinity by Comcast reports a data breach following a cyberattack that took use of the CitrixBleed vulnerability. By taking use of this vulnerability, threat actors were able to take over active authenticated connections and get around multifactor authentication and other stringent authentication regulations. The security company Mandiant saw threat actors taking control of sessions in which the threat actor used session data that had been taken prior to the patch being deployed. The business discovered that hashed passwords and usernames are among the different client data that is exposed.

Type: Data Breach

Attack Vector: CitrixBleed vulnerability

Vulnerability Exploited: CitrixBleed

Incident : Data Breach

Title: Comcast Email Credentials for Sale on Dark Web

Description: A BlackMarket on the dark web was offering about 590,000 Comcast email addresses and passwords for sale. The seller presented a list of 112 accounts asking for $300 USD for 100,000 accounts, and the complete list of 590,000 accounts sells for $1,000 USD as evidence of the reliability of the Comcast data. Approximately 200,000 out of the 590,000 records that were being sold on the illicit market were still active, according to Comcast, which was in possession of the list and had been examining the exposed information. The systems of Comcast have not been penetrated, according to the company's security staff, and each subscriber who reports unusual behaviour on his account will be contacted individually to address the problem.

Type: Data Breach

Attack Vector: Dark Web Marketplace

Threat Actor: Unknown

Motivation: Financial Gain

Incident : Data Breach

Title: Comcast Xfinity Login Page Bug

Description: Comcast Xfinity's login page had a bug that allowed anyone to gain access to the partial Social Security Numbers and partial home addresses of over 26.5 million customers. The company patched the bug quickly after being notified of its existence.

Type: Data Breach

Attack Vector: Bug Exploitation

Vulnerability Exploited: Login Page Bug

Incident : Data Breach

Title: Comcast Xfinity Website Bug Exposes Customer Information

Description: A bug in Comcast's website used to activate Xfinity compromised sensitive information on the company's customers. The website, used by customers to set up their home internet and cable service, was used to trick into displaying the home address where the router is located, as well as the Wi-Fi name and password. Only a customer account ID and that customer's house or apartment number are needed, even though the web form asks for a full address. That information could be grabbed from a discarded bill or obtained from an email. The bug returns data even if the Xfinity Wi-Fi is already switched on. It's also possible to rename Wi-Fi network names and passwords, temporarily locking users out.

Type: Data Breach

Attack Vector: Web Application Vulnerability

Vulnerability Exploited: Information Disclosure

Incident : Data Breach

Title: Comcast Data Breach

Description: Comcast, a US company, suffered a data breach incident in September 2015. The breach compromised the personal details of about 75,000 of its customers. The company had offered $100 to the affected customers and $25 million to the state agencies as compensation.

Date Detected: September 2015

Type: Data Breach

What are the most common types of attacks the company has faced?

Common Attack Types: The most common types of attacks the company has faced is Breach.

Impact of the Incidents

What was the impact of each incident?

Incident : Data Breach COM000101324

Data Compromised: Personal data of approximately 238,000 customers, including names, addresses, Social Security numbers, dates of birth, and Comcast account details

Identity Theft Risk: High

Incident : Data Breach, Ransomware COM000100824

Data Compromised: Names, Social Security numbers, Account details

Incident : Data Breach COM152251223

Data Compromised: Hashed passwords, Usernames

Incident : Data Breach COM1740261023

Data Compromised: Email addresses and passwords

Identity Theft Risk: High

Incident : Data Breach COM22281122

Data Compromised: partial Social Security Numbers, partial home addresses

Systems Affected: Login Page

Incident : Data Breach COM12229722

Data Compromised: Home Address, Wi-Fi Name, Wi-Fi Password

Systems Affected: Xfinity Website

Incident : Data Breach COM13519422

Financial Loss: 25 million

Data Compromised: Personal details

What is the average financial loss per incident?

Average Financial Loss: The average financial loss per incident is $3.57 million.

What types of data are most commonly compromised in incidents?

Commonly Compromised Data Types: The types of data most commonly compromised in incidents are Personal data, Names, Social Security numbers, Account details, Hashed passwords, Usernames, Email addresses and passwords, partial Social Security Numbers, partial home addresses, Home Address, Wi-Fi Name, Wi-Fi Password and Personal details.

Which entities were affected by each incident?

Incident : Data Breach COM000101324

Entity Type: Company

Industry: Telecommunications

Customers Affected: 238,000

Incident : Data Breach, Ransomware COM000100824

Entity Type: Telecommunications

Industry: Telecommunications

Customers Affected: 238,000

Incident : Data Breach COM152251223

Entity Type: Telecommunications

Industry: Telecommunications

Incident : Data Breach COM1740261023

Entity Type: Company

Industry: Telecommunications

Customers Affected: 590000

Incident : Data Breach COM22281122

Entity Type: Telecommunications

Industry: Telecommunications

Customers Affected: 26.5 million

Incident : Data Breach COM12229722

Entity Type: Company

Industry: Telecommunications

Incident : Data Breach COM13519422

Entity Type: Company

Industry: Telecommunications

Location: United States

Customers Affected: 75,000

Response to the Incidents

What measures were taken in response to each incident?

Incident : Data Breach COM000101324

Communication Strategy: Comcast offered one year of credit monitoring and identity protection services to impacted individuals

Incident : Data Breach COM152251223

Third Party Assistance: Mandiant

Incident : Data Breach COM1740261023

Remediation Measures: Contacting subscribers reporting unusual behavior

Incident : Data Breach COM22281122

Containment Measures: patched the bug quickly

How does the company involve third-party assistance in incident response?

Third-Party Assistance: The company involves third-party assistance in incident response through Mandiant.

Data Breach Information

What type of data was compromised in each breach?

Incident : Data Breach COM000101324

Type of Data Compromised: Personal data

Number of Records Exposed: 238,000

Sensitivity of Data: High

Personally Identifiable Information: Names, addresses, Social Security numbers, dates of birth, and Comcast account details

Incident : Data Breach, Ransomware COM000100824

Type of Data Compromised: Names, Social Security numbers, Account details

Number of Records Exposed: 238,000

Personally Identifiable Information: Names, Social Security numbers

Incident : Data Breach COM152251223

Type of Data Compromised: Hashed passwords, Usernames

Incident : Data Breach COM1740261023

Type of Data Compromised: Email addresses and passwords

Number of Records Exposed: 590000

Sensitivity of Data: High

Personally Identifiable Information: Email addresses

Incident : Data Breach COM22281122

Type of Data Compromised: partial Social Security Numbers, partial home addresses

Number of Records Exposed: 26.5 million

Personally Identifiable Information: True

Incident : Data Breach COM12229722

Type of Data Compromised: Home Address, Wi-Fi Name, Wi-Fi Password

Sensitivity of Data: High

Personally Identifiable Information: Home Address

Incident : Data Breach COM13519422

Type of Data Compromised: Personal details

Number of Records Exposed: 75,000

What measures does the company take to prevent data exfiltration?

Prevention of Data Exfiltration: The company takes the following measures to prevent data exfiltration: Contacting subscribers reporting unusual behavior.

How does the company handle incidents involving personally identifiable information (PII)?

Handling of PII Incidents: The company handles incidents involving personally identifiable information (PII) through was patched the bug quickly.

Investigation Status

How does the company communicate the status of incident investigations to stakeholders?

Communication of Investigation Status: The company communicates the status of incident investigations to stakeholders through was Comcast offered one year of credit monitoring and identity protection services to impacted individuals.

Initial Access Broker

How did the initial access broker gain entry for each incident?

Incident : Data Breach COM1740261023

Post-Incident Analysis

What is the company's process for conducting post-incident analysis?

Post-Incident Analysis Process: The company's process for conducting post-incident analysis is described as Mandiant.

Additional Questions

General Information

Who was the attacking group in the last incident?

Last Attacking Group: The attacking group in the last incident was an Unknown.

Incident Details

What was the most recent incident detected?

Most Recent Incident Detected: The most recent incident detected was on 2024-02-26.

Impact of the Incidents

What was the highest financial loss from an incident?

Highest Financial Loss: The highest financial loss from an incident was 25 million.

What was the most significant data compromised in an incident?

Most Significant Data Compromised: The most significant data compromised in an incident were Personal data of approximately 238,000 customers, including names, addresses, Social Security numbers, dates of birth, and Comcast account details, Names, Social Security numbers, Account details, Hashed passwords, Usernames, Email addresses and passwords, partial Social Security Numbers, partial home addresses, Home Address, Wi-Fi Name, Wi-Fi Password and Personal details.

What was the most significant system affected in an incident?

Most Significant System Affected: The most significant system affected in an incident was Login Page and Xfinity Website.

Response to the Incidents

What third-party assistance was involved in the most recent incident?

Third-Party Assistance in Most Recent Incident: The third-party assistance involved in the most recent incident was Mandiant.

What containment measures were taken in the most recent incident?

Containment Measures in Most Recent Incident: The containment measures taken in the most recent incident was patched the bug quickly.

Data Breach Information

What was the most sensitive data compromised in a breach?

Most Sensitive Data Compromised: The most sensitive data compromised in a breach were Personal data of approximately 238,000 customers, including names, addresses, Social Security numbers, dates of birth, and Comcast account details, Names, Social Security numbers, Account details, Hashed passwords, Usernames, Email addresses and passwords, partial Social Security Numbers, partial home addresses, Home Address, Wi-Fi Name, Wi-Fi Password and Personal details.

What was the number of records exposed in the most significant breach?

Number of Records Exposed in Most Significant Breach: The number of records exposed in the most significant breach was 27.1M.

What Do We Measure?

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Incident
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Finding
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Grade
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Digital Assets

Every week, Rankiteo analyzes billions of signals to give organizations a sharper, faster view of emerging risks. With deeper, more actionable intelligence at their fingertips, security teams can outpace threat actors, respond instantly to Zero-Day attacks, and dramatically shrink their risk exposure window.

These are some of the factors we use to calculate the overall score:

Network Security

Identify exposed access points, detect misconfigured SSL certificates, and uncover vulnerabilities across the network infrastructure.

SBOM (Software Bill of Materials)

Gain visibility into the software components used within an organization to detect vulnerabilities, manage risk, and ensure supply chain security.

CMDB (Configuration Management Database)

Monitor and manage all IT assets and their configurations to ensure accurate, real-time visibility across the company's technology environment.

Threat Intelligence

Leverage real-time insights on active threats, malware campaigns, and emerging vulnerabilities to proactively defend against evolving cyberattacks.

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