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Discover Company Cyber Security Posture

Discover® is now part of Capital One. Together, we’ll continue to deliver exceptional financial products and experiences, drive innovation, and serve customers. Find the latest updates at https://capitalonediscover.com. Discover is one of the most recognized brands in the U.S. with the Discover® card, America's cash rewards pioneer, and offers personal loans, home loans, checking and savings accounts and certificates of deposit. The Discover Global Network® is comprised of Discover Network, with millions of merchants and cash access locations; PULSE®, one of the nation's leading ATM/debit networks; and Diners Club International®, a global payments network with acceptance around the world.

Discover Company Details

Linkedin ID:

discover-financial-services

Website:

http://www.discover.com

Employees number:

21528 employees

Number of followers:

227086.0

NAICS:

Industry Type:

Financial Services

Homepage:

discover.com

IP Addresses:

184

Company ID:

DIS_6618111

Scan Status:

In-progress

Discover Risk Score (AI oriented)

Between 900 and 1000

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

Discover Global Score

Discover 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

Discover Company Cyber Security News & History

Past Incidents

Attack Types

Entity	Type	Severity	Impact	Seen	Url ID	Details
Discover Financial Services	Breach	25	1	6/2016	DIS121072425	Link
Rankiteo Explanation : Attack without any consequences Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on June 17, 2016. The breach did not involve Discover card systems, and the specific number of individuals affected and details on the types of information compromised remain unknown.
Discover Financial Services	Breach	50	2	10/2015	DIS714072525	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The California Office of the Attorney General reported that Discover Financial Services experienced a data breach on October 27, 2015, with the report published on September 23, 2016. The breach involved Discover card account information, but specific details about the number of affected individuals and the method of breach are unclear.
Discover Financial Services	Breach	50	2	8/2012	DIS114072525	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The California Office of the Attorney General reported a data breach incident involving Discover Financial Services on August 17, 2012. The breach did not involve any Discover card systems and there is no evidence of unauthorized use of the account numbers; however, customers were advised that their account information may have been compromised, leading to the issuance of new cards.
Discover Financial Services	Breach	50	2	8/2018	DIS406072525	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on January 25, 2019. The breach occurred on August 13, 2018, and involved Discover card account information, although the specific types of data exposed are unknown. Affected individuals were issued new cards as a precaution against potential fraud.
Discover Financial Services	Breach	60	2	12/2013	DIS005072625	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The California Office of the Attorney General reported a data breach notification from Discover Financial Services on December 20, 2013. The specific date of the breach is not available, and there were 2 cards affected. The notification indicated that account information may have been compromised but did not involve any Discover card systems. The details about the compromised information and specific response actions were limited.
Discover Financial Services	Breach	50	2	10/2014	DIS014072625	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on July 21, 2017. The breach occurred on October 22, 2014, and involved Discover card account information, although the specific types of information compromised are unclear. The organization responded by issuing new cards to reduce the possibility of fraud.
Discover Financial Services	Breach	50	2	7/2017	DIS323072625	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on June 25, 2018. The breach occurred on July 16, 2017, potentially exposing Discover card account information, though specific types of data involved are unknown. This incident highlights the vulnerability of financial institutions to cyber threats and the importance of robust security measures to protect sensitive customer information.
Discover Financial Services	Breach	50	2	5/2014	DIS547072625	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on October 26, 2016, which occurred on May 4, 2014. The breach potentially exposed Discover card account information, but the exact types of data compromised are unknown. A new card with a new security code and expiration date was issued as a response to the breach.
Discover Financial Services	Breach	50	2	11/2014	DIS737072625	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on February 20, 2017. The breach occurred on November 2, 2014, potentially exposing Discover card account information. The specific number of individuals affected is unknown.
Discover Financial Services	Breach	50	2	8/2016	DIS1018072625	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on July 21, 2017. The breach occurred on August 10, 2016, potentially affecting Discover card account information, though the specific types of compromised information are unknown. This incident highlights the vulnerability of financial institutions to cyber threats and the importance of robust security measures to protect sensitive customer data.
Discover Financial Services	Breach	50	2	6/2015	DIS145072725	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The California Office of the Attorney General reported that Discover Financial Services experienced a data breach on June 21, 2015, and reported the incident on September 23, 2016. The data involved was Discover card account information, but the specific types of data compromised are unknown. To mitigate risk, Discover is issuing new cards to affected users.
Discover Financial Services	Breach	50	2	1/2013	DIS521072725	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on January 18, 2013. The breach involved compromised Discover card account information, although no specifics on the method of breach or the number of affected individuals were provided.
Discover Financial Services	Breach	50	2	7/2015	DIS851072725	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on July 20, 2016. The breach occurred on July 31, 2015, and affected Discover card account information. The specific details about the number of individuals impacted and types of information compromised are unknown. This breach highlights the vulnerability of financial institutions to cyber threats and the potential for significant financial and reputational damage.
Discover Financial Services	Breach	50	2	2/2014	DIS954072725	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on March 21, 2016. The breach occurred on February 19, 2014, and affected Discover card account information, although the specific types of compromised data remain unclear.
Discover Financial Services	Breach	50	2	9/2020	DIS631072825	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The Maine Office of the Attorney General reported that Discover Financial Services experienced a data breach due to an inadvertent disclosure, affecting 690 individuals, with 2 residents specifically impacted. The breach occurred between September 29, 2020 and November 15, 2020, and was reported on December 17, 2020.
Discover Financial Services	Breach	50	2	3/2015	DIS913072825	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on October 26, 2016. The breach occurred on March 2, 2015, potentially affecting Discover card account information, though the specifics of the data compromised are unclear.
Discover Financial Services	Breach	50	2	9/2016	DIS822072825	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The California Attorney General reported a data breach involving Discover Financial Services on July 21, 2017. The breach occurred on September 4, 2016, and involved Discover card account information, although specific details about the data compromised are unclear.
Discover Financial Services	Breach	50	2	8/2015	DIS929072825	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The California Office of the Attorney General reported that Discover Financial Services experienced a data breach on August 2, 2015, and the breach was reported on March 21, 2016. The breach involved Discover card account information, though specific details about the types of information compromised and the number of affected individuals are unclear.
Discover Financial Services	Breach	50	2	4/2014	DIS227072825	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The California Office of the Attorney General reported that Discover Financial Services experienced a data breach on April 10, 2014, with the breach being reported on June 26, 2015. The breach involved the potential compromise of card account information, but no specific number of individuals affected or exact types of information compromised were provided.
Discover Financial Services	Breach	50	2	6/2014	DIS232072825	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on July 20, 2016. The breach occurred on June 19, 2014, potentially affecting Discover card account information, though the exact number of affected individuals is unknown. The breach did not involve Discover's systems directly and led to the issuance of new cards with updated security features.
Discover Financial Services	Breach	60	2	7/2014	DIS037072925	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The California Office of the Attorney General reported that Discover Financial Services experienced a data breach involving Discover card accounts on June 23, 2017. The breach occurred on July 1, 2014, and affected undisclosed numbers of individuals, with potential exposure of Discover card account information.
Discover Financial Services	Breach	50	2	5/2013	DIS205072925	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on May 24, 2013. The specific date of the breach is not available, and no details regarding the number of individuals affected or the types of information compromised were provided. This breach highlights the potential vulnerabilities in financial services and the importance of robust cybersecurity measures to protect sensitive information.
Discover Financial Services	Breach	50	2	4/2017	DIS257072925	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The California Attorney General reported on October 19, 2017, that Discover Financial Services experienced a data breach on April 27, 2017. The breach involved Discover card account information, although the specific details of the compromised data are unclear. This incident highlights the vulnerability of financial institutions to cyber threats and the potential for significant financial and reputational damage.
Discover Financial Services	Breach	50	2	1/2016	DIS818080425	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The California Office of the Attorney General reported that Discover Financial Services experienced a data breach on January 2, 2016, with the breach notification reported on February 20, 2017. The breach involved Discover card account information, although the specific data compromised is unknown at this time.
Discover Financial Services	Breach	50	2	1/2014	DIS253080525	Link
Rankiteo Explanation : Attack limited on finance or reputation Description: The California Office of the Attorney General reported a data breach at Discover Financial Services on June 17, 2016. The breach, which occurred on January 1, 2014, involved Discover card account information. The specific number of individuals affected and the exact data compromised remain unknown. This incident highlights the potential risks associated with financial data breaches, where sensitive information such as account details could be exposed, leading to financial losses and reputational damage.

Discover Company Subsidiaries

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How financial institutions can minimize their attack surface

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Frequently Asked Questions

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

Discover CyberSecurity History Information

How many cyber incidents has Discover faced?

Total Incidents: According to Rankiteo, Discover has faced 25 incidents in the past.

What types of cybersecurity incidents have occurred at Discover?

Incident Types: The types of cybersecurity incidents that have occurred include Breach.

How does Discover detect and respond to cybersecurity incidents?

Detection and Response: The company detects and responds to cybersecurity incidents through an remediation measures with issuance of new cards with updated security features and remediation measures with issuing new cards to affected users and remediation measures with issued new cards with new security codes and expiration dates and remediation measures with issuing new cards and remediation measures with issued new cards to affected individuals and remediation measures with issuance of new cards and communication strategy with advised customers of potential compromise.

Incident Details

Can you provide details on each incident?

Incident : Data Breach

Title: Discover Financial Services Data Breach

Description: The California Office of the Attorney General reported that Discover Financial Services experienced a data breach involving Discover card account information on June 17, 2016. The breach occurred on January 1, 2014; however, the specific number of individuals affected is unknown, and it is unclear which specific data may have been compromised.

Date Detected: 2016-06-17

Date Publicly Disclosed: 2016-06-17

Type: Data Breach

Incident : Data Breach

Title: Discover Financial Services Data Breach

Description: The California Office of the Attorney General reported that Discover Financial Services experienced a data breach on January 2, 2016, with the breach notification reported on February 20, 2017. The breach involved Discover card account information, although the specific data compromised is unknown at this time.

Date Detected: 2016-01-02

Date Publicly Disclosed: 2017-02-20

Type: Data Breach

Incident : Data Breach

Title: Discover Financial Services Data Breach

Description: The California Attorney General reported on October 19, 2017, that Discover Financial Services experienced a data breach on April 27, 2017. The breach involved Discover card account information, although the specific details of the compromised data are unclear.

Date Detected: 2017-04-27

Date Publicly Disclosed: 2017-10-19

Type: Data Breach

Incident : Data Breach

Title: Data Breach at Discover Financial Services

Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on May 24, 2013. The specific date of the breach is not available, and no details regarding the number of individuals affected or the types of information compromised were provided.

Date Publicly Disclosed: 2013-05-24

Type: Data Breach

Incident : Data Breach

Title: Discover Financial Services Data Breach

Description: The California Office of the Attorney General reported that Discover Financial Services experienced a data breach involving Discover card accounts on June 23, 2017. The breach occurred on July 1, 2014, and affected undisclosed numbers of individuals, with potential exposure of Discover card account information.

Date Detected: 2017-06-23

Date Publicly Disclosed: 2017-06-23

Type: Data Breach

Incident : Data Breach

Title: Data Breach Involving Discover Financial Services

Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on July 20, 2016. The breach occurred on June 19, 2014, potentially affecting Discover card account information, though the exact number of affected individuals is unknown. The breach did not involve Discover's systems directly and led to the issuance of new cards with updated security features.

Date Detected: 2014-06-19

Date Publicly Disclosed: 2016-07-20

Type: Data Breach

Incident : Data Breach

Title: Discover Financial Services Data Breach

Description: The California Office of the Attorney General reported that Discover Financial Services experienced a data breach on April 10, 2014, with the breach being reported on June 26, 2015. The breach involved the potential compromise of card account information, but no specific number of individuals affected or exact types of information compromised were provided.

Date Detected: 2014-04-10

Date Publicly Disclosed: 2015-06-26

Type: Data Breach

Incident : Data Breach

Title: Discover Financial Services Data Breach

Description: The California Office of the Attorney General reported that Discover Financial Services experienced a data breach on August 2, 2015, and the breach was reported on March 21, 2016. The breach involved Discover card account information, though specific details about the types of information compromised and the number of affected individuals are unclear.

Date Detected: 2015-08-02

Date Publicly Disclosed: 2016-03-21

Type: Data Breach

Incident : Data Breach

Title: Data Breach at Discover Financial Services

Description: The California Attorney General reported a data breach involving Discover Financial Services on July 21, 2017. The breach occurred on September 4, 2016, and involved Discover card account information, although specific details about the data compromised are unclear.

Date Detected: 2017-07-21

Date Publicly Disclosed: 2017-07-21

Type: Data Breach

Incident : Data Breach

Title: Data Breach at Discover Financial Services

Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on October 26, 2016. The breach occurred on March 2, 2015, potentially affecting Discover card account information, though the specifics of the data compromised are unclear.

Date Detected: 2016-10-26

Date Publicly Disclosed: 2016-10-26

Type: Data Breach

Incident : Data Breach

Title: Discover Financial Services Data Breach

Description: The Maine Office of the Attorney General reported that Discover Financial Services experienced a data breach due to an inadvertent disclosure, affecting 690 individuals, with 2 residents specifically impacted.

Date Publicly Disclosed: 2020-12-17

Type: Data Breach

Attack Vector: Inadvertent Disclosure

Incident : Data Breach

Title: Data Breach at Discover Financial Services

Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on March 21, 2016. The breach occurred on February 19, 2014, and affected Discover card account information, although the specific types of compromised data remain unclear.

Date Detected: 2016-03-21

Date Publicly Disclosed: 2016-03-21

Type: Data Breach

Incident : Data Breach

Title: Data Breach at Discover Financial Services

Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on July 20, 2016. The breach occurred on July 31, 2015, and affected Discover card account information, although specific details about the number of individuals impacted and types of information compromised are unknown.

Date Detected: 2016-07-20

Date Publicly Disclosed: 2016-07-20

Type: Data Breach

Incident : Data Breach

Title: Data Breach at Discover Financial Services

Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on January 18, 2013. The breach involved compromised Discover card account information, although no specifics on the method of breach or the number of affected individuals were provided.

Date Detected: 2013-01-18

Date Publicly Disclosed: 2013-01-18

Type: Data Breach

Incident : Data Breach

Title: Discover Financial Services Data Breach

Description: The California Office of the Attorney General reported that Discover Financial Services experienced a data breach on June 21, 2015, and reported the incident on September 23, 2016. The data involved was Discover card account information, but the specific types of data compromised are unknown. To mitigate risk, Discover is issuing new cards to affected users.

Date Detected: 2015-06-21

Date Publicly Disclosed: 2016-09-23

Type: Data Breach

Incident : Data Breach

Title: Data Breach at Discover Financial Services

Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on July 21, 2017. The breach occurred on August 10, 2016, potentially affecting Discover card account information, though the specific types of compromised information are unknown.

Date Detected: 2017-07-21

Date Publicly Disclosed: 2017-07-21

Type: Data Breach

Incident : Data Breach

Title: Data Breach at Discover Financial Services

Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on February 20, 2017. The breach occurred on November 2, 2014, potentially exposing Discover card account information. The specific number of individuals affected is unknown.

Date Detected: 2017-02-20

Date Publicly Disclosed: 2017-02-20

Type: Data Breach

Incident : Data Breach

Title: Data Breach at Discover Financial Services

Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on October 26, 2016, which occurred on May 4, 2014. The breach potentially exposed Discover card account information, but the exact types of data compromised are unknown. A new card with a new security code and expiration date was issued as a response to the breach.

Date Detected: 2016-10-26

Date Publicly Disclosed: 2016-10-26

Type: Data Breach

Incident : Data Breach

Title: Data Breach at Discover Financial Services

Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on June 25, 2018. The breach occurred on July 16, 2017, potentially exposing Discover card account information, though specific types of data involved are unknown.

Date Detected: 2018-06-25

Date Publicly Disclosed: 2018-06-25

Type: Data Breach

Incident : Data Breach

Title: Data Breach at Discover Financial Services

Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on July 21, 2017. The breach occurred on October 22, 2014, and involved Discover card account information, although the specific types of information compromised are unclear. The organization responded by issuing new cards to reduce the possibility of fraud.

Date Detected: 2017-07-21

Date Publicly Disclosed: 2017-07-21

Type: Data Breach

Incident : Data Breach

Title: Data Breach at Discover Financial Services

Description: The California Office of the Attorney General reported a data breach notification from Discover Financial Services on December 20, 2013. The specific date of the breach is not available, and there were 2 cards affected. The notification indicated that account information may have been compromised but did not involve any Discover card systems. The details about the compromised information and specific response actions were limited.

Date Publicly Disclosed: 2013-12-20

Type: Data Breach

Incident : Data Breach

Title: Data Breach at Discover Financial Services

Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on January 25, 2019. The breach occurred on August 13, 2018, and involved Discover card account information, although the specific types of data exposed are unknown. Affected individuals were issued new cards as a precaution against potential fraud.

Date Detected: 2019-01-25

Date Publicly Disclosed: 2019-01-25

Type: Data Breach

Incident : Data Breach

Title: Data Breach at Discover Financial Services

Description: The California Office of the Attorney General reported a data breach incident involving Discover Financial Services on August 17, 2012. The breach did not involve any Discover card systems and there is no evidence of unauthorized use of the account numbers; however, customers were advised that their account information may have been compromised, leading to the issuance of new cards.

Date Detected: 2012-08-17

Date Publicly Disclosed: 2012-08-17

Type: Data Breach

Incident : Data Breach

Title: Discover Financial Services Data Breach

Description: The California Office of the Attorney General reported that Discover Financial Services experienced a data breach on October 27, 2015, with the report published on September 23, 2016. The breach involved Discover card account information, but specific details about the number of affected individuals and the method of breach are unclear.

Date Detected: 2015-10-27

Date Publicly Disclosed: 2016-09-23

Type: Data Breach

Incident : Data Breach

Title: Data Breach at Discover Financial Services

Description: The California Office of the Attorney General reported a data breach involving Discover Financial Services on June 17, 2016. The breach did not involve Discover card systems, and the specific number of individuals affected and details on the types of information compromised remain unknown.

Date Publicly Disclosed: 2016-06-17

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 DIS818080425

Data Compromised: Discover card account information

Incident : Data Breach DIS257072925

Data Compromised: Discover card account information

Incident : Data Breach DIS037072925

Data Compromised: Discover card account information

Incident : Data Breach DIS232072825

Data Compromised: Discover card account information

Incident : Data Breach DIS227072825

Data Compromised: card account information

Incident : Data Breach DIS929072825

Data Compromised: Discover card account information

Incident : Data Breach DIS822072825

Data Compromised: Discover card account information

Incident : Data Breach DIS913072825

Data Compromised: Discover card account information

Incident : Data Breach DIS954072725

Data Compromised: Discover card account information

Incident : Data Breach DIS851072725

Data Compromised: Discover card account information

Incident : Data Breach DIS521072725

Data Compromised: Discover card account information

Incident : Data Breach DIS145072725

Data Compromised: Discover card account information

Incident : Data Breach DIS1018072625

Data Compromised: Discover card account information

Incident : Data Breach DIS737072625

Data Compromised: Discover card account information

Incident : Data Breach DIS547072625

Data Compromised: Discover card account information

Incident : Data Breach DIS323072625

Data Compromised: Discover card account information

Incident : Data Breach DIS014072625

Data Compromised: Discover card account information

Incident : Data Breach DIS005072625

Data Compromised: Account Information

Incident : Data Breach DIS406072525

Data Compromised: Discover card account information

Incident : Data Breach DIS114072525

Data Compromised: Account Information

Incident : Data Breach DIS714072525

Data Compromised: Discover card account information

What types of data are most commonly compromised in incidents?

Commonly Compromised Data Types: The types of data most commonly compromised in incidents are Discover card account information, Discover card account information, Discover card account information, Discover card account information, card account information, Discover card account information, Discover card account information, Discover card account information, Discover card account information, Discover card account information, Discover card account information, Discover card account information, Discover card account information, Discover card account information, Discover card account information, Discover card account information, Discover card account information, Account Information, Discover card account information, Account Information and Discover card account information.