Duolingo
We have not found a subprocessor list published by Duolingo. We monitor 3 of its documents, which we last checked on Nov 11, 2026.
No tracked subprocessors.
Not listed by any tracked vendor.
Not loaded by any published homepage.
Subprocessors
None extracted.
Web TechnologiesCSV of Duolingo's web technologies · Atom feed of Duolingo's web technologies
Duolingo's homepage made 148 requests to 14 domains, 3 services controlled by another company, and 2 domains not identified.
3 third parties by category: Advertising 1Analytics 1Cookie compliance 1
d35aaqx5ub95lt.cloudfront.nettupsrv.com
3 tracked companies loaded by the homepage are not in Duolingo's subprocessor list. A website can use a service without it processing customer data.
ComplianceCSV of Duolingo's compliance · Atom feed of Duolingo's compliance
Security program
How Duolingo says it manages cybersecurity risk, in its annual report to the SEC.
- Led by
- Head of Security reporting to the senior management through the Governance Council
quote
This Governance Council also includes our Head of Information Security, who with our dedicated Information Security Team, manages the day-to-day activities needed to prevent, detect, and mitigate cybersecurity incidents, and reports to senior management through the Governance Council.
- Board oversight
- Audit Committee
quote
Our Board considers cybersecurity risk as part of its risk oversight function and is assisted by its Audit Committee (the "Committee"), which regularly reviews our cybersecurity program with management and
- Outside review
- Engages outside assessors or consultants
quote
Committee members also receive presentations on cybersecurity topics and trends from our Information Security Management Leader, internal cybersecurity staff or external experts as part of the Committee's continuing education on topics that impact public companies.
- Its own suppliers
- Reviews their security
quote
a third-party risk management process for key service providers based on our assessment of their criticality to our operations and respective risk profile.
- Practices named
- Incident response plan
- Threat intelligence
- Security training
- Material incidents
- None so far, it says
quote
We have not identified risks from known cybersecurity threats, including as a result of any prior cybersecurity incidents, that have materially affected us, including our operations, business strategy, financial condition, or results of operations.
Read Item 1C in full
Cybersecurity Risk Management, Strategy and Governance Disclosures
Cybersecurity Risk Management and Strategy
We have developed and implemented a cybersecurity risk management program intended to protect the confidentiality, integrity, and availability of our critical systems and information.
We design and assess our program based on various cybersecurity frameworks and guidelines. This does not imply that we meet any particular technical standards, specifications, or requirements, only that we use these frameworks and guidelines as a guide to help us identify, assess, and manage cybersecurity risks relevant to our business.
Our cybersecurity risk management program is integrated into our overall risk management program, and shares common methodologies, reporting channels and governance processes that apply across the risk management program to other legal, compliance, strategic, operational, and financial risk areas.
Key elements of our cybersecurity risk management program include the following:
•risk assessments designed to help identify material risks from cybersecurity threats to our critical systems and information;
•a dedicated information security team principally responsible for managing (1) our cybersecurity risk assessment processes, (2) our security controls, and (3) our response to cybersecurity incidents;
•the use of external service providers, where appropriate, to assess, test or otherwise assist with aspects of our security processes and controls;
•cybersecurity awareness training of our employees, including incident response personnel, and senior management;
•a cybersecurity incident response plan that includes procedures for responding to cybersecurity incidents; and
•a third-party risk management process for key service providers based on our assessment of their criticality to our operations and respective risk profile.
We have not identified risks from known cybersecurity threats, including as a result of any prior cybersecurity incidents, that have materially affected us, including our operations, business strategy, financial condition, or results of operations. We face risks from cybersecurity threats that, if realized, are reasonably likely to materially affect us, including our operations, business strategy, financial condition, or results of operations. See Part I, Item 1A. “Risk Factors—Risks Relating to Our Business and Industry – Security breaches of our IT Systems, improper or unauthorized access to or disclosure of our Confidential Information, other hacking and social engineering or phishing attacks on our IT Systems or service, or other cyber incidents could disrupt our services or compromise Confidential Information related to our business and expose us to liability, which could harm our reputation and materially adversely affect our business.”.
Cybersecurity Governance
Our Board considers cybersecurity risk as part of its risk oversight function and is assisted by its Audit Committee (the "Committee"), which regularly reviews our cybersecurity program with management and
reports to the Board. Cybersecurity reviews by the Committee generally occur quarterly or more frequently as determined to be advisable. Committee members also receive presentations on cybersecurity topics and trends from our Information Security Management Leader, internal cybersecurity staff or external experts as part of the Committee's continuing education on topics that impact public companies.
Our management team oversees our cybersecurity risk management through our Information Security Management System Governance Council, which is chaired by our Information Security Management Leader and includes our Chief Technology Officer, Chief Engineering Officer, and General Counsel, along with employee subject matter experts in law, privacy, engineering, and cybersecurity. This Governance Council also includes our Head of Information Security, who with our dedicated Information Security Team, manages the day-to-day activities needed to prevent, detect, and mitigate cybersecurity incidents, and reports to senior management through the Governance Council. This Head of Information Security has served in various roles within the cybersecurity field for over 15 years, including security leadership roles in multiple organizations and holds an undergraduate degree in information security and forensics.
Our management team supervises efforts to prevent, detect, mitigate, and remediate cybersecurity risks and incidents through various means, which may include briefings from internal security personnel; threat intelligence and other information obtained from governmental, public or private sources, including external consultants engaged by us; and alerts and reports produced by security tools deployed in the IT environment.
Security program from Duolingo, Inc.'s Form 10-K for fiscal 2025, filed Feb 27, 2026, Item 1C, in its words (evidence)
Security recordCSV of Duolingo's security record · Atom feed of Duolingo's security record
What public security catalogs list for Duolingo, in their words.
Data breaches
- Duolingo 2,676,696 accounts Email addresses; Names; Spoken languages; Usernames
In August 2023, 2.6M records of data scraped from Duolingo were broadly distributed on a popular hacking forum. Obtained by enumerating a vulnerable API, the data had earlier appeared for sale in January 2023 and contained email addresses, names, the languages being learned, XP (experience points), and other data related to learning progress on Duolingo. Whilst some of the data attributes are intentionally public, the ability to map private email addresses to them presents an ongoing risk to user privacy.
Have I Been Pwned
Breach data: Have I Been Pwned (CC BY 4.0), which calls every entry a breach, including data scraped from public pages (evidence)
Service statusCSV of Duolingo's status page incidents · Atom feed of Duolingo's status page incidents
90 days agotoday
- 3 incidents in 90 days
- 2 major or critical
- 2 h 26 min typical time to resolve
- 6 h 56 min longest major
| Began | Incident | Impact | Lasted |
|---|---|---|---|
| Duolingo is experiencing increased errors | critical | 37 min | |
| Duolingo is experiencing increased errors | critical | 6 h 56 min | |
| Duolingo is experiencing increased errors | no impact stated | 2 h 26 min | |
| Duolingo is experiencing increased errors | critical | 27 min | |
| Duolingo is experiencing increased errors | critical | 20 min | |
| Duolingo is experiencing increased errors | critical | 53 min | |
| Duolingo Android app issues | major | 32 min | |
| Issues with Video Call and Roleplay | no impact stated | 1 h 33 min |
Incidents per month
critical major minor no impact stated
Components affected
| Component | Incidents | Bar |
|---|---|---|
| Duolingo | 3 |
As Duolingo's status page reports its own incidents (scheduled maintenance left out), read every few hours since (evidence)
ChangesCSV of Duolingo's changes · Atom feed of Duolingo's changes
None since tracking began.