Comcast Company Cyber Security Posture
comcast.comWelcome 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 that’s why our work is the best in the world.
Comcast Company Details
comcast
60535 employees
667997.0
517
Telecommunications
comcast.com
812
COM_2880559
In-progress
Comcast Risk Score (AI oriented)Between 900 and 1000
This score is AI-generated and less favored by cyber insurers, who prefer the TPRM score.
Comcast Global Score.png)
Comcast Company Scoring based on AI Models
| Model Name | Date | Description | Current Score Difference | Score |
|---|---|---|---|---|
| AVERAGE-Industry | 03-12-2025 | 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
| Entity | Type | Severity | Impact | Seen | Url ID | Details | View |
|---|---|---|---|---|---|---|---|
| Comcast | Breach | 85 | 4 | 09/2015 | COM13519422 | Link | |
Rankiteo Explanation : Attack with significant impact with customers data leaksDescription: 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. | |||||||
| Comcast | Breach | 100 | 4 | 11/2015 | COM1740261023 | Link | |
Rankiteo Explanation : Attack with significant impact with customers data leaksDescription: 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. | |||||||
| Comcast | Breach | 60 | 3 | 12/2023 | COM152251223 | Link | |
Rankiteo Explanation : Attack with significant impact with internal employee data leaksDescription: 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. | |||||||
| Comcast | Breach | 85 | 4 | 10/2024 | COM000100824 | Link | |
Rankiteo Explanation : Attack with significant impact with customers data leaksDescription: 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. | |||||||
| Comcast | Data Leak | 50 | 2 | 05/2018 | COM12229722 | Link | |
Rankiteo Explanation : Attack limited on finance or reputationDescription: 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. | |||||||
| Comcast | Data Leak | 85 | 4 | 08/2018 | COM22281122 | Link | |
Rankiteo Explanation : Attack with significant impact with customers data leaksDescription: 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. | |||||||
| Comcast | Ransomware | 100 | 4 | 10/2024 | COM000101324 | Link | |
Rankiteo Explanation : Attack with significant impact with customers data leaksDescription: 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
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 that’s why our work is the best in the world.
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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 Ransomware, Breach and Data Leak.
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
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 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 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?
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:
Identify exposed access points, detect misconfigured SSL certificates, and uncover vulnerabilities across the network infrastructure.
Gain visibility into the software components used within an organization to detect vulnerabilities, manage risk, and ensure supply chain security.
Monitor and manage all IT assets and their configurations to ensure accurate, real-time visibility across the company's technology environment.
Leverage real-time insights on active threats, malware campaigns, and emerging vulnerabilities to proactively defend against evolving cyberattacks.
