Privacy notice

Google Sign-In

When you choose Google sign-in and grant authorization, 不藏 receives the Google user identifier, email address, and email verification status used to identify your account. We use this information to create your account or sign you in, and to associate your saved content and membership benefits with your account. We request only OpenID identity and email permissions; we do not request access to your Gmail messages, contacts, Google Drive, or calendar.

The sign-in token returned by Google is used to verify the current sign-in and is not stored as a long-term Google access credential. 不藏 does not sell Google user data or use it for ad targeting or training artificial intelligence models.

Account and Usage Data

We store your account identifier, email address, registration time, Google account connection information (when you use Google sign-in), login sessions, content you choose to save, and the duration of any activated membership and related order records. We use this information to maintain your login session, sync saved content across devices, manage account benefits, and address service issues.

Once email verification code sign-in is enabled, we will send a verification code to the email address you enter. The code is valid for 10 minutes, and the server stores a verification digest of the code. Identifiers such as email addresses or IP addresses used to prevent frequent requests are also stored as digests. Sign-in or payment methods that have not been enabled are not automatically invoked when you browse the site.

When you pay USDT using Plisio, we provide Plisio with the order number, plan name, payment network, amount, and payment status notification URL, and receive the payment invoice number, amount, and payment status to verify the order and activate membership. We do not proactively transmit your login email address to Plisio. Plisio’s payment page may independently ask you to provide a notification email address and processes payment information in accordance with its privacy policy. We do not obtain your wallet private keys or recovery phrases.

For historical orders paid through direct USDT transfers, we read transfer records on public blockchains and store the payment network, receiving address, amount due, transaction hash, and confirmation time to match orders and activate membership. On-chain transfer records are publicly accessible; we do not provide your login email address to blockchain nodes.

Cookies and Local Storage

A login session cookie is used to identify your signed-in account and is valid for up to 30 days; signing out invalidates the current session. Short-lived security cookies are also used during Google sign-in to verify sign-in requests.

Your browser may cache the homepage content of the public feed for 30 minutes to speed up subsequent visits. We do not save account credentials, orders, private lists of saved content, or original PDFs in the website’s localStorage. You can clear the website’s cookies and local storage in your browser settings.

Service Providers and External Content

不藏 uses Cloudflare for website hosting, database services, and private file storage, and uses Google for Google sign-in. When email verification code functionality is enabled, Resend will process recipient email addresses and the content of verification code emails as the email delivery service. These services may process data in different regions according to their infrastructure arrangements.

External images, video thumbnails, or links in articles may come from third-party websites such as YouTube. When external resources are loaded or links are opened, third parties receive standard network request information such as IP addresses, and their handling of that information is governed by their privacy policies. The on-site viewer for original PDFs is hosted by 不藏; research report files are not uploaded to third-party online readers.

Retention, Access, and Deletion

Account and saved-content data are retained while the corresponding services are provided. You can remove saved items or sign out directly, and you can also contact the email address below to request access to, correction of, or deletion of your account and related data. To confirm that a request comes from the account holder, we may ask you to verify your identity through the associated email address. Records needed to handle refunds or disputes, or required to be retained by law, will be handled in accordance with applicable requirements.

You can also revoke 不藏’s authorization in your Google Account third-party connections settings. Revoking Google authorization and deleting your 不藏 account are separate actions; to delete your data on this site, please contact the email address below.

Contact Us

For questions about your account or privacy, please email help@unhidea.com and include “不藏 / Unhidea”.

If the ways information covered by this notice is used change, we will update this page and its update date.