Here at Beijing Changxiang Wisdom Technology Co., Ltd. (“ we” , “ us” , “ our” , or “ Changxiang Wisdom”, "CXZH"), we are making security products that are very powerful but also very easy to use. The key is in simplicity. We believe that your rights about privacy and control over your information should be also simple and easy to understand.

We will be transparent about the information (data) we collect and why we collect them. We do not and will not sell your data to third parties. Our primary purpose in collecting your data is to be able to deliver you better security products and services.

This Privacy Policy applies to Changxiang Wisdom‘s website and all products and services offered by Changxiang Wisdom. It describes how we collect, use, share and secure your personal information. It also describes your choices regarding use, access and correction of your personal information.

Effective date and update

Effective date of this privacy policy: 2023/04/23

Why do we collect your information?

When you install and use our apps, we can collect and process some of your data for different legitimate purposes. You will find below explanations regarding the reasons why we may collect data.

  1. To run analytics and understand how users interact with our apps or games to provide better user experience and better service.
  2. For third party analytics and third party advertising services - Express consent
  3. To fix issues, such as the crash or ANR issues on some special devices

What kind of information do we collect?

The following information may be collected by us:

  1. advertising id
  2. Details about your device, including internet protocol (IP) address, and other device identifiers, and operating system. We may collect this information through our Services.
  3. users’ installed app package information (package-name and SHA-256 checksum)
  4. If the user is scanning files for malware (for example, in the product Antivirus AI), the SHA-256 and MD5 checksum will be collected (not the content of the scanned file!)
  5. When you use our products to protect your mobile device, we collect geo-location data (based on the IP address and not related to the GPS) of the device on which the product is installed.
  6. our app properties: package name, version code, version name

Antivirus One also collects standard mobile phone information, which includes information regarding your mobile phone software and hardware, such as your IP address, operating system, and version.

How long we keep your information?

We will keep your personal information as needed to fulfill the purposes for which it was collected. We will retain and use your personal information as necessary to comply with our business requirements, legal obligations, resolve disputes, protect our assets, and enforce our agreements. Because these needs can vary for different data types in the context of different products or services, actual retention periods can vary significantly.

How do we share your information?

We do not sell, trade, or rent Users personal identification information to others. We may share generic aggregated demographic information not linked to any personal identification information regarding visitors and users with our business partners, trusted affiliates and advertisers for the purposes outlined above. We may use third party service providers to help us operate our business and the Site or administer activities on our behalf, such as sending out newsletters or surveys. We may share your information with these third parties for those limited purposes if you have given us your permission.

Third parties and limited purposes:

For antivirus engine:

For ad services:

For analytics:

For purchasing:


Access to your information:

Our services are not directed to children under eighteen, and we do not knowingly collect personal information from children under thirteen. If we learn that we have collected personal information of a child under thirteen we will delete such information from our files as soon as possible, provided, however, that some information may remain in archived/backup copies for our records or as otherwise required by law.

The Legal Bases for Using Personal Information

The General Data Protection Regulation (GDPR) is effective starting from May 25, 2018. The GDPR requires that a valid legal basis be used to process personal data:

How do we protect your information?

We adopt appropriate data collection, storage and processing practices and security measures to protect against unauthorized access, alteration, disclosure or destruction of your personal information, username, password, transaction information and data stored on our Site. Sensitive and private data exchange between the Site and its User happens over a SSL secured communication channel and is encrypted and protected with digital signatures.

Privacy policy updates

We will update our Privacy Policy as necessary to ensure that our policies are in line with international regulations, our product and business practices. If we make any changes to this Privacy Policy, we will notify you of such changes by posting them on our website or by sending you an email or other notification prior to the change becoming effective.

Contact us

We have appointed an executive agent for our privacy protection policy, who will be responsible for our compliance with the privacy criteria as described in this statement.

If you have any questions or concerns regarding this Privacy Policy, would like to modify the communications option, update or refer to your personal information we possess, or withdraw your decision to allow us to collect, use or publish your personal information, please feel free to contact us at any time:


Changxiang Wisdom
Room 02B-412, 2nd Floor, Tower C
No. 28 A Information Road
Haidian District, Beijing
We will contact you within 15 days from the receipt of your contact, and will do our best to resolve any problem you have.