Company Details
gilead-sciences
14,615
738,160
541714
gilead.com
245
GIL_6922720
Completed

Gilead Sciences Company CyberSecurity Posture
gilead.comAt Gilead, we set – and achieve – bold ambitions to create a healthier world for all people. From our pioneering virology medicines to our growing impact in oncology, we're delivering innovations once thought impossible in medicine. Our focus goes beyond medicines, and we also strive to remedy health inequities and break down barriers to care. We empower our people to tackle these challenges, and we’re all united in our commitment to help millions of people live healthier lives. Social Media Guidelines: https://www.gilead.com/social-media-guidelines
Company Details
gilead-sciences
14,615
738,160
541714
gilead.com
245
GIL_6922720
Completed
Between 750 and 799

Gilead Sciences Global Score (TPRM)XXXX

Description: On **April 2, 2025**, the **Maine Office of the Attorney General** disclosed a **data breach** involving **Gilead Sciences, Inc.**, stemming from an **inadvertent mailing error** by **Billing Document Specialists**. The incident, detected on **February 18, 2025**, resulted in the **unauthorized disclosure of sensitive personal information**—specifically **Social Security numbers**—of **12,224 individuals**, including **4 residents in California**. The breach occurred due to a **procedural failure in handling physical mail**, leading to the exposure of **confidential financial identifiers** without evidence of malicious cyber activity or further exploitation. While the exposed data carries **high sensitivity**, there were **no reports of identity theft, financial fraud, or systemic compromise** linked to the incident. The company likely initiated **remediation measures**, such as notifications to affected parties and regulatory bodies, but the breach’s scope remained **contained to document mishandling** rather than a targeted cyberattack or systemic vulnerability exploitation.
Description: The employees of drugmaker company Gilead Sciences were targeted by some hackers linked to Iran. The web domains and hosting servers and fake email logins were used to compromise the company's servers.


Gilead Sciences has 49.25% more incidents than the average of same-industry companies with at least one recorded incident.
Gilead Sciences has 28.21% more incidents than the average of all companies with at least one recorded incident.
Gilead Sciences reported 1 incidents this year: 0 cyber attacks, 0 ransomware, 0 vulnerabilities, 1 data breaches, compared to industry peers with at least 1 incident.
Gilead Sciences cyber incidents detection timeline including parent company and subsidiaries

At Gilead, we set – and achieve – bold ambitions to create a healthier world for all people. From our pioneering virology medicines to our growing impact in oncology, we're delivering innovations once thought impossible in medicine. Our focus goes beyond medicines, and we also strive to remedy health inequities and break down barriers to care. We empower our people to tackle these challenges, and we’re all united in our commitment to help millions of people live healthier lives. Social Media Guidelines: https://www.gilead.com/social-media-guidelines

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Explore insights on cybersecurity incidents, risk posture, and Rankiteo's assessments.
The official website of Gilead Sciences is http://www.gilead.com.
According to Rankiteo, Gilead Sciences’s AI-generated cybersecurity score is 799, reflecting their Fair security posture.
According to Rankiteo, Gilead Sciences currently holds 0 security badges, indicating that no recognized compliance certifications are currently verified for the organization.
According to Rankiteo, Gilead Sciences is not certified under SOC 2 Type 1.
According to Rankiteo, Gilead Sciences does not hold a SOC 2 Type 2 certification.
According to Rankiteo, Gilead Sciences is not listed as GDPR compliant.
According to Rankiteo, Gilead Sciences does not currently maintain PCI DSS compliance.
According to Rankiteo, Gilead Sciences is not compliant with HIPAA regulations.
According to Rankiteo,Gilead Sciences is not certified under ISO 27001, indicating the absence of a formally recognized information security management framework.
Gilead Sciences operates primarily in the Biotechnology Research industry.
Gilead Sciences employs approximately 14,615 people worldwide.
Gilead Sciences presently has no subsidiaries across any sectors.
Gilead Sciences’s official LinkedIn profile has approximately 738,160 followers.
Gilead Sciences is classified under the NAICS code 541714, which corresponds to Research and Development in Biotechnology (except Nanobiotechnology).
Yes, Gilead Sciences has an official profile on Crunchbase, which can be accessed here: https://www.crunchbase.com/organization/gilead-sciences.
Yes, Gilead Sciences maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/gilead-sciences.
As of December 14, 2025, Rankiteo reports that Gilead Sciences has experienced 2 cybersecurity incidents.
Gilead Sciences has an estimated 4,488 peer or competitor companies worldwide.
Incident Types: The types of cybersecurity incidents that have occurred include Cyber Attack and Breach.
Detection and Response: The company detects and responds to cybersecurity incidents through an communication strategy with public disclosure via maine office of the attorney general..
Title: Cyber Attack on Gilead Sciences by Iran-Linked Hackers
Description: The employees of drugmaker company Gilead Sciences were targeted by some hackers linked to Iran. The web domains and hosting servers and fake email logins were used to compromise the company's servers.
Type: Cyber Attack
Attack Vector: Phishing, Server Compromise
Threat Actor: Iran-Linked Hackers
Title: Gilead Sciences, Inc. Data Breach via Mailing Error
Description: The Maine Office of the Attorney General reported a data breach involving Gilead Sciences, Inc. The breach occurred due to an inadvertent disclosure of 12,224 individuals' information, including Social Security numbers, through a mailing error by Billing Document Specialists. The incident affected 4 residents in California.
Date Detected: 2025-02-18
Date Publicly Disclosed: 2025-04-02
Type: Data Breach
Attack Vector: Human Error (Mailing Error)
Common Attack Types: The most common types of attacks the company has faced is Breach.
Identification of Attack Vectors: The company identifies the attack vectors used in incidents through Fake Email Logins.

Systems Affected: Servers

Data Compromised: Social security numbers
Brand Reputation Impact: Potential reputational harm due to exposure of sensitive personal data
Identity Theft Risk: High (due to exposure of Social Security numbers)
Commonly Compromised Data Types: The types of data most commonly compromised in incidents are Social Security Numbers and .

Entity Name: Gilead Sciences
Entity Type: Company
Industry: Pharmaceuticals

Entity Name: Gilead Sciences, Inc.
Entity Type: Corporation
Industry: Biopharmaceutical
Location: United States
Customers Affected: 12,224 individuals (including 4 residents in California)

Entity Name: Billing Document Specialists
Entity Type: Third-Party Vendor
Industry: Document Processing

Communication Strategy: Public disclosure via Maine Office of the Attorney General

Type of Data Compromised: Social security numbers
Number of Records Exposed: 12,224
Sensitivity of Data: High (Personally Identifiable Information)
Data Exfiltration: No (inadvertent disclosure via mailing error)
Personally Identifiable Information: Yes

Regulatory Notifications: Maine Office of the Attorney General

Source: Maine Office of the Attorney General
Date Accessed: 2025-04-02
Additional Resources: Stakeholders can find additional resources on cybersecurity best practices at and Source: Maine Office of the Attorney GeneralDate Accessed: 2025-04-02.
Communication of Investigation Status: The company communicates the status of incident investigations to stakeholders through Public disclosure via Maine Office of the Attorney General.

Entry Point: Fake Email Logins,

Root Causes: Human error by third-party vendor (Billing Document Specialists) leading to inadvertent disclosure of sensitive data via mail.
Last Attacking Group: The attacking group in the last incident was an Iran-Linked Hackers.
Most Recent Incident Detected: The most recent incident detected was on 2025-02-18.
Most Recent Incident Publicly Disclosed: The most recent incident publicly disclosed was on 2025-04-02.
Most Significant Data Compromised: The most significant data compromised in an incident were Social Security numbers and .
Most Significant System Affected: The most significant system affected in an incident was Servers.
Most Sensitive Data Compromised: The most sensitive data compromised in a breach was Social Security numbers.
Number of Records Exposed in Most Significant Breach: The number of records exposed in the most significant breach was 12.2K.
Most Recent Source: The most recent source of information about an incident is Maine Office of the Attorney General.
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A security flaw has been discovered in code-projects Student File Management System 1.0. This vulnerability affects unknown code of the file /admin/save_user.php. The manipulation of the argument firstname results in sql injection. The attack can be executed remotely. The exploit has been released to the public and may be exploited.
A vulnerability was identified in code-projects Student File Management System 1.0. This affects an unknown part of the file /admin/update_user.php. The manipulation of the argument user_id leads to sql injection. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.

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