Tachyo Data Collection
Tachyo Privacy Policy
Tachyo Data Collection
Tachyo Privacy Policy
Tachyo Data Collection
Tachyo Privacy Policy
Tachyo Privacy Policy
Effective Date:
2, September 2025
Developer:
Tachyo (independent, non-commercial project)
Contact:
hi@tachyo.co
Tachyo is a free browser extension that provides fast, context-aware AI answers directly inside the page you’re viewing. This Privacy Policy explains what data we collect, how we use it, and what choices you have.
Tachyo Privacy Policy
Effective Date:
2, September 2025
Developer:
Tachyo (independent, non-commercial project)
Contact:
hi@tachyo.co
Tachyo is a free browser extension that provides fast, context-aware AI answers directly inside the page you’re viewing. This Privacy Policy explains what data we collect, how we use it, and what choices you have.
Tachyo Privacy Policy
Effective Date:
2, September 2025
Developer:
Tachyo (independent, non-commercial project)
Contact:
hi@tachyo.co
Tachyo is a free browser extension that provides fast, context-aware AI answers directly inside the page you’re viewing. This Privacy Policy explains what data we collect, how we use it, and what choices you have.
1. Data We Collect
We only collect the minimum data required for features. This includes:
Page Content (visible HTML text)
Collected when you ask a question, or automatically if our algorithm detects an article to summarize.
Processed in-memory and filtered to remove personally identifiable information (PII) using automated regex screening (see Section 2).
Deleted after the answer/summary is generated unless part of your chat history.
Highlighted Text / “Add as Context”
Collected only when you select and add text.
Sent to AI as query context.
Stored in your chat history so you can revisit later.
Chat History
Includes your queries, AI answers, auto-generated chat titles, and page metadata (URL, domain, page title at query time).
Retained for up to 24 months (see Section 3), then automatically deleted.
Stored so you can search and retrieve past conversations.
Uploaded Files (PDFs, Images)
Collected only when you upload.
Temporarily processed to extract content and answer your question.
Not stored after processing.
User & Session Info
Technical data such as user_id, session_id, timestamps, timezone, extension version, language, platform, and userAgent.
Used for reliability, abuse prevention, and diagnostics.
Performance Metrics & Errors
Latency, token counts, model name, error messages/status codes.
Used to monitor and improve performance.
We never store names, emails, general browsing history, or info outside your chat context.
1. Data We Collect
We only collect the minimum data required for features. This includes:
Page Content (visible HTML text)
Collected when you ask a question, or automatically if our algorithm detects an article to summarize.
Processed in-memory and filtered to remove personally identifiable information (PII) using automated regex screening (see Section 2).
Deleted after the answer/summary is generated unless part of your chat history.
Highlighted Text / “Add as Context”
Collected only when you select and add text.
Sent to AI as query context.
Stored in your chat history so you can revisit later.
Chat History
Includes your queries, AI answers, auto-generated chat titles, and page metadata (URL, domain, page title at query time).
Retained for up to 24 months (see Section 3), then automatically deleted.
Stored so you can search and retrieve past conversations.
Uploaded Files (PDFs, Images)
Collected only when you upload.
Temporarily processed to extract content and answer your question.
Not stored after processing.
User & Session Info
Technical data such as user_id, session_id, timestamps, timezone, extension version, language, platform, and userAgent.
Used for reliability, abuse prevention, and diagnostics.
Performance Metrics & Errors
Latency, token counts, model name, error messages/status codes.
Used to monitor and improve performance.
We never store names, emails, general browsing history, or info outside your chat context.
1. Data We Collect
We only collect the minimum data required for features. This includes:
Page Content (visible HTML text)
Collected when you ask a question, or automatically if our algorithm detects an article to summarize.
Processed in-memory and filtered to remove personally identifiable information (PII) using automated regex screening (see Section 2).
Deleted after the answer/summary is generated unless part of your chat history.
Highlighted Text / “Add as Context”
Collected only when you select and add text.
Sent to AI as query context.
Stored in your chat history so you can revisit later.
Chat History
Includes your queries, AI answers, auto-generated chat titles, and page metadata (URL, domain, page title at query time).
Retained for up to 24 months (see Section 3), then automatically deleted.
Stored so you can search and retrieve past conversations.
Uploaded Files (PDFs, Images)
Collected only when you upload.
Temporarily processed to extract content and answer your question.
Not stored after processing.
User & Session Info
Technical data such as user_id, session_id, timestamps, timezone, extension version, language, platform, and userAgent.
Used for reliability, abuse prevention, and diagnostics.
Performance Metrics & Errors
Latency, token counts, model name, error messages/status codes.
Used to monitor and improve performance.
We never store names, emails, general browsing history, or info outside your chat context.
2. What We Never Collect
We apply strict PII regex filters to prevent storage of the following categories:
Credentials & Tokens: passwords, API keys, OAuth tokens, refresh tokens, JWTs, cookies/session IDs, private keys, seed phrases.
Financial IDs: full PAN (card numbers), CVV/CVC, full IBAN/account numbers (masked values only if required).
Government IDs: TCKN, passport numbers, driver’s licenses (any country).
Direct Contact Info: full emails, full phone numbers.
Exact Addresses: home/work addresses that pinpoint a person, GPS at precision ≤ 3 decimal places.
Full Date of Birth: only age buckets may be stored.
Biometrics: face vectors, voiceprints, fingerprints, keystroke dynamics.
Raw Network/Device Data: raw IPs, persistent device fingerprints (only coarse location and capped granularity retained).
Sensitive Page Content: unredacted data from webmail, banking, healthcare, file drives, password managers, chat/DM UIs.
Browser Storage Values: cookies, localStorage, sessionStorage.
We do not collect unrelated browsing history or any data when the extension is off. We never sell, rent, or use data for model training or ads.
If you suspect data is stored incorrectly, contact hi@tachyo.co.
2. What We Never Collect
We apply strict PII regex filters to prevent storage of the following categories:
Credentials & Tokens: passwords, API keys, OAuth tokens, refresh tokens, JWTs, cookies/session IDs, private keys, seed phrases.
Financial IDs: full PAN (card numbers), CVV/CVC, full IBAN/account numbers (masked values only if required).
Government IDs: TCKN, passport numbers, driver’s licenses (any country).
Direct Contact Info: full emails, full phone numbers.
Exact Addresses: home/work addresses that pinpoint a person, GPS at precision ≤ 3 decimal places.
Full Date of Birth: only age buckets may be stored.
Biometrics: face vectors, voiceprints, fingerprints, keystroke dynamics.
Raw Network/Device Data: raw IPs, persistent device fingerprints (only coarse location and capped granularity retained).
Sensitive Page Content: unredacted data from webmail, banking, healthcare, file drives, password managers, chat/DM UIs.
Browser Storage Values: cookies, localStorage, sessionStorage.
We do not collect unrelated browsing history or any data when the extension is off. We never sell, rent, or use data for model training or ads.
If you suspect data is stored incorrectly, contact hi@tachyo.co.
2. What We Never Collect
We apply strict PII regex filters to prevent storage of the following categories:
Credentials & Tokens: passwords, API keys, OAuth tokens, refresh tokens, JWTs, cookies/session IDs, private keys, seed phrases.
Financial IDs: full PAN (card numbers), CVV/CVC, full IBAN/account numbers (masked values only if required).
Government IDs: TCKN, passport numbers, driver’s licenses (any country).
Direct Contact Info: full emails, full phone numbers.
Exact Addresses: home/work addresses that pinpoint a person, GPS at precision ≤ 3 decimal places.
Full Date of Birth: only age buckets may be stored.
Biometrics: face vectors, voiceprints, fingerprints, keystroke dynamics.
Raw Network/Device Data: raw IPs, persistent device fingerprints (only coarse location and capped granularity retained).
Sensitive Page Content: unredacted data from webmail, banking, healthcare, file drives, password managers, chat/DM UIs.
Browser Storage Values: cookies, localStorage, sessionStorage.
We do not collect unrelated browsing history or any data when the extension is off. We never sell, rent, or use data for model training or ads.
If you suspect data is stored incorrectly, contact hi@tachyo.co.
3. Data Retention
Chat history and related metadata are stored with a time-to-live (TTL) of 24 months.
After 24 months, records are automatically deleted.
Uploaded files are not retained beyond processing.
Technical diagnostics and error logs: kept only as briefly as needed for reliability, then deleted.
No persistent personal data or extra logs are stored elsewhere.
3. Data Retention
Chat history and related metadata are stored with a time-to-live (TTL) of 24 months.
After 24 months, records are automatically deleted.
Uploaded files are not retained beyond processing.
Technical diagnostics and error logs: kept only as briefly as needed for reliability, then deleted.
No persistent personal data or extra logs are stored elsewhere.
3. Data Retention
Chat history and related metadata are stored with a time-to-live (TTL) of 24 months.
After 24 months, records are automatically deleted.
Uploaded files are not retained beyond processing.
Technical diagnostics and error logs: kept only as briefly as needed for reliability, then deleted.
No persistent personal data or extra logs are stored elsewhere.
4. How We Use Data
Usage of any data is strictly limited to:
To provide Tachyo’s features (answers, summaries, chat history).
To improve stability, performance, and prevent abuse.
To maintain extension security and user trust.
Third-party AI Providers: We send data you choose to query (page text, selections, chat prompts) to third-party AI APIs (e.g., OpenAI, Gemini). These providers may store data under their own policies.
We do not use your data for advertising or resale. We do not train AI models on your chats.
4. How We Use Data
Usage of any data is strictly limited to:
To provide Tachyo’s features (answers, summaries, chat history).
To improve stability, performance, and prevent abuse.
To maintain extension security and user trust.
Third-party AI Providers: We send data you choose to query (page text, selections, chat prompts) to third-party AI APIs (e.g., OpenAI, Gemini). These providers may store data under their own policies.
We do not use your data for advertising or resale. We do not train AI models on your chats.
4. How We Use Data
Usage of any data is strictly limited to:
To provide Tachyo’s features (answers, summaries, chat history).
To improve stability, performance, and prevent abuse.
To maintain extension security and user trust.
Third-party AI Providers: We send data you choose to query (page text, selections, chat prompts) to third-party AI APIs (e.g., OpenAI, Gemini). These providers may store data under their own policies.
We do not use your data for advertising or resale. We do not train AI models on your chats.
5. Your Choices
Disable auto-summary in settings.
Request deletion: email us at hi@tachyo.co with the subject “Delete my data.”
5. Your Choices
Disable auto-summary in settings.
Request deletion: email us at hi@tachyo.co with the subject “Delete my data.”
5. Your Choices
Disable auto-summary in settings.
Request deletion: email us at hi@tachyo.co with the subject “Delete my data.”
6. Security
We protect data using encryption in transit, secure storage for logs, and restricted access. No system is 100% secure, but we minimize retention and limit collection to reduce risk.
6. Security
We protect data using encryption in transit, secure storage for logs, and restricted access. No system is 100% secure, but we minimize retention and limit collection to reduce risk.
6. Security
We protect data using encryption in transit, secure storage for logs, and restricted access. No system is 100% secure, but we minimize retention and limit collection to reduce risk.
7. Changes
If we update this Privacy Policy, we will change the “Effective Date” and post the revised version. Continued use after updates means you accept the new policy.
7. Changes
If we update this Privacy Policy, we will change the “Effective Date” and post the revised version. Continued use after updates means you accept the new policy.
7. Changes
If we update this Privacy Policy, we will change the “Effective Date” and post the revised version. Continued use after updates means you accept the new policy.
8. Contact
If you have questions or requests (such as deleting chat histories):
hi@tachyo.co
8. Contact
If you have questions or requests (such as deleting chat histories):
hi@tachyo.co
8. Contact
If you have questions or requests (such as deleting chat histories):
hi@tachyo.co
©2025 Tachyo. All rights reserved.
©2025 Tachyo. All rights reserved.
©2025 Tachyo. All rights reserved.