[Special reminder] Please comply with local laws and regulations and
prohibit uploading any confidential files to private or public
The public cloud has a variety of functions to facilitate the access of
other users, such as link sharing, and files stored in the public cloud
may be accessed by others, so please do not upload content involving
personal privacy and infringing on the interests of others to the public
Shanghai Dihuang Infomation Technology Co., Ltd. (hereinafter referred to as
"Chengtong Network Disk") attaches great importance to the protection of
user information, but when you use our services, we may collect and use your
you how we collect, use and protect your information when you use the
before using the services provided by the company. Once you use the service,
1. Information We Collect
1.1 The information you provide to Citycom.com.
When you register an account or use the services provided by Citylink, the
personal information you provide to Citylink includes but is not limited to
your mobile phone number, email address, ID number, bank card number, etc.
In the case that you voluntarily choose the service or provide relevant
information, the service system of the city network disk will automatically
store the aforementioned information.
1.2 The information we obtain when you use the services of Citycom.com.
1.2.1 Log information: When you use the Citycom network disk service, the
server will automatically record some information, such as your usage of our
service, IP address, URL of the accessed service, browser type and usage
language, date and time of visit, etc.
1.2.2 Crash information: When you experience a crash or other abnormality
when using the service of the Citycom network disk, the Citycom network disk
will send the crash report to the Citycom network disk after getting your
confirmation. Crash reports can help us diagnose problems with the Chengtong
network disk. Chengtong Network Disk will try to avoid sending user
personally identifiable information, but the crash report will contain
information about your operating system version and operating status at the
time of the failure.
1.2.3 Device Information: Some products and/or services contain unique
application numbers. When you install, activate, update, uninstall related
services or when these services regularly communicate with CityCom network
disk (such as software updates), the system will use this number and
installation-related information (such as operating system type and
application version) number) to the Chengtong network disk. In order to
provide better service and experience improvement for different types of
devices, the citycom network disk will record the hardware model, operating
system version number, the International Mobile Equipment Identity (IMEI) of
the mobile phone, and the hardware address (MAC) of the network device of
the mobile phone. and other information.
1.2.4 Location information: When you use the Citycom network disk service
with the positioning function, the system will automatically process the
location information of the device, so that you do not need to manually
enter your own geographic coordinates to obtain related services. For
example, in the citycom network disk map service, if you use "current
location" for geographic query, CityCom Network Disk may provide you with
1.2.5 Cookie information:
Cookies are mainly used to authenticate your identity and help the website
to carry out data statistics, which helps us to provide you with more
thoughtful and personalized services based on your information, such as
advertising optimization, to you Provide ads that are relevant to you
rather than general advertising.
When you use Citycom products or services, a cookie will be sent to your
device, and the services you and we provide to our partners (such as
advertising and/or promotional services, as well as other services that
may be displayed on other websites by Citycom.com) will be sent to your
device. When interacting with the service function provided by the disk),
we allow cookies to be sent to the Citycom network disk server.
browser settings. If you choose to reject cookies, you may not be able to
log in or use the services or functions of the CityCom network that rely
1.2.6 User Experience Improvement Program:
We will invite you to participate in the user experience improvement
program when you use the Citycom network disk product, and you can choose
to refuse to participate.
In order to improve the product and meet the new needs of users, we will
continue to increase and improve product functions, so we need to know the
usage of each product function, that is, how many users are using this
product function, so that we can monitor the usage of each product
function. The importance of making sound judgments.
If you participate in this plan, we will collect the usage times and
parameter setting information of some functions of the citycom network
disk; the mobile phone version of the cloud disk user experience
improvement plan will collect your mobile phone model, software system
version number and some functions used. situation data. For the data
collected, we perform aggregated statistical analysis in order to
continuously improve our products.
You can opt in or out of our User Experience Improvement Program at any
time in the Settings Center.
2. How we use your information
2.1 Improve services and improve user experience
Through the use of the collected information, Chengtong Netdisk will better
understand how you use our services, so as to provide you with personalized
services and help Chengtong Netdisk to improve Chengtong Netdisk products or
develop new products /Serve.
2.2 Account security protection
When we provide services, we use them for authentication, customer service,
security, fraud detection, archiving and backup purposes to ensure the
security of the products and services we provide to you.
2.3 Advertising Services
Citynet may work with its partners to provide you with the services you
request or to show you content that may be of interest to you, including:
Instant messaging services, online media services, interactive
entertainment services, social networking services, payment services,
Internet search services, location and map services, application software
and services, data management software and services, online advertising
services, Internet finance, and other social media , entertainment,
e-commerce, information and communication software or services
(collectively, "Internet Services");
Third-party Internet service providers, and third-party goods or services
related to: food and dining, sports, music, movies, television, live
performances and other arts and entertainment, books, magazines and other
publications, clothing and accessories, jewelry , cosmetics, personal
health and hygiene, electronics, collectibles, household utensils,
appliances, home decor and furnishings, pets, automobiles, hotels,
transportation and travel, banking, insurance and other financial
services, loyalty points and rewards programs, and what we believe are
Other goods or services that may be relevant to you.
In the case where the information is necessary for the product/service,
you agree that Citycom can share the necessary information with it. If you
do not want us to use your personal information for the above-mentioned
advertising purposes, you can ask us to stop using your personal
information for the above-mentioned purposes through the relevant prompts
we provide in advertisements or the guidelines provided in specific
Citynet may conduct statistics on product usage. At the same time, Chengtong
Netdisk may share these statistical information with the public to show the
overall usage trends of our services. These statistics do not contain your
personally identifiable information.
2.5 Information Sharing
In the following cases, CityCom network disk may disclose your information:
- Get your prior authorization;
- Using public cloud services;
As required by laws, regulations, legal process, or government
For the purpose of academic research or public interest;
In order to safeguard the legitimate rights and interests of Chengtong
Netdisk, such as finding, preventing, and dealing with fraud or security
Complies with the applicable Terms of Service or Policy of Use.
3. Information protection statement
Chengtong Netdisk attaches great importance to information security, and
develops and applies a variety of security technologies and procedures to
prevent information loss, improper use, unauthorized viewing or disclosure.
However, please understand that due to technical limitations and various
malicious means that may exist, in the Internet industry, even if we do our
best to strengthen security measures, it is impossible to always guarantee
100% information security. You need to understand that the systems and
communication networks you use to access our services may have problems due
to factors beyond our control.
4. Product Service Description
4.1 Mobile data backup
4.1.1 During the use of the mobile phone, information such as contacts, text
messages and other information may be lost due to system crash, hardware
damage, flashing the mobile phone system firmware, or loss of the mobile
phone. Data cloud backup can encrypt and back up important data such as
address book, mobile phone photos and mobile phone videos to the Citycom
network disk security center. When the user's mobile phone data is
accidentally lost, the data can be quickly restored to the mobile phone to
avoid losses. Mobile phone backup realizes data backup and recovery across
mobile phone operating systems. When you change mobile phones, you no longer
have to worry about importing information such as contacts and mobile photos
from old mobile phones.
4.1.2 Mobile phone backup function already supports backup/restore data:
- Mobile phonebook
- Each of the above is user selectable
4.1.3 Description of the behavior involved in the mobile phone backup
When you choose to backup data, you need to encrypt the backup data in
your personal mobile phone and upload it to the Citycom network disk for
storage and backup, so as to ensure that the data can be retrieved or
restored when needed in the future. Mobile phone backup and recovery is a
user-selective function, and only after you choose to use this function,
Chengtong Network Disk will provide you with this service, and the traffic
charges generated during the use of the function are subject to the
relevant regulations of the operator.
The mobile phone backup service will save the history of your backup, and
can record your backup time each time, so that you can choose a different
backup point to restore. All backup data is encrypted (including uploading
and storage) to ensure that your private data cannot be viewed or accessed
by any unauthorized program.
4.2 Stealth Mode. Users can set important files to hidden mode, set security
keys for hidden mode, and double encryption to protect users' files. Using
this function, CityCom Network Disk will not collect the user's personal
4.3 Users can search for friends and add them by entering the name of the
network disk or the account number of the network disk, and can match
friends through the mobile phone address book. Friends can be managed
through the friend list, and friends can be deleted at any time. After
deletion, the user's sharing and information can no longer be sent and
received. Users can completely control their friends list by using the above
functions, they can reject their friends' verification applications, and
they can also pull their friends into the blacklist. When using the address
book for friend information matching, the software will encrypt and transmit
the mobile phone number in the address book to the Citycom network disk
server, so as to match users with friends who are also using the Citycom
network disk product. After the matching process is encrypted, the software
will not transmit and record the contact name corresponding to the mobile
phone number, nor will it not save the information, and will not use the
information for other purposes.
5. Information you share
5.1 Our services allow you to publicly share information about you not only
with your own social network, but also with all users of cloud storage
services. For example, the information you upload or post on our Services
(including your public personal information, lists you create), your
responses to information uploaded or posted by others, and including
location data related to such information and log information. Other users
of our services may also share information about you (including location
data and log information). In particular, our social media services are
designed to allow you to share information with users around the world, and
you can make shared information available in real-time and widely. As long
as you do not delete the shared information, the relevant information will
remain in the public domain; even if you delete the shared information, the
relevant information may still be independently cached, copied or stored by
other users or unaffiliated third parties not controlled by us, or by other
Users or such third parties are kept in the public domain. Therefore, please
consider carefully the content of information uploaded, published and
communicated through our services. In some cases, you can control the range
of users who have the right to view your shared information through the
privacy settings of some of our services. If you request to delete your
relevant information from our services, please do so through the methods
provided in these special terms of service
5.2 Certain personal information may be considered sensitive personal
information due to its specificity, such as your race, religion, personal
health and medical information, etc. Sensitive personal information is more
strictly protected than other personal information. Please note that the
content and information you provide, upload or post when using our services
(such as photos about your social activities, etc.) may reveal your
sensitive personal information. You need to carefully consider whether to
disclose relevant sensitive personal information when using our services.
You agree to the processing of your sensitive personal information for the
6. How you can access and control your information
We will do everything possible to take appropriate technical means to ensure
that you can access, update and correct your registration information or
other personal information you provide when using our services. When
accessing, updating, correcting and deleting the aforementioned information,
we may require you to authenticate to ensure account security.
If you need to log out of your account, you can log in through the official
website and click the avatar in the upper right corner, click Personal
Information, click the logout button on the left, view the logout prompt,
and click Confirm to logout. Once you confirm the cancellation, your account
will not be able to log in immediately, and you can apply for account
recovery within 7 days after applying for cancellation. After the deadline
for account recovery, your account will be permanently cancelled. If you
still need to use our services, you need to re-register your account.
7. Location and duration of information storage
Citynet complies with the relevant laws and regulations, and stores the
user's personal information collected during the provision of the Citycom
network within the territory of China. If some products or services involve
cross-border, we need to transmit your personal information overseas. We
will strictly follow the laws and regulations and ensure the security of
your personal information.
Citynet will, within the scope of relevant laws and regulations, formulate
reasonable and feasible measures to avoid collecting unnecessary personal
information of users, and keep your personal information for the shortest
period required to achieve the purposes stated in this policy. information.
When you cancel your account or voluntarily delete your personal
information, the CityCom network will continue to retain your information
within 6 months after the account cancellation is completed or the personal
information is deleted in accordance with the requirements of laws and
When Chengtong Netdisk stops operating, Chengtong Netdisk will notify you in
the form of push notifications, announcements, etc., and delete or anonymize
Chengtong Net according to the requirements of laws and regulations after
the suspension of operation. all of your personal information held by the
8. Minor Information Protection
Chengtong Netdisk attaches great importance to the protection of minors'
information. If you are a minor under the age of 18, you should obtain the
consent of your parents or legal guardians in advance before using the
products and/or services of SkyDrive.
amendments result in a material reduction of your rights under the Privacy
Policy, we will post them prominently on the home page before the amendments
take effect. In this case, if you continue to use our services, you agree to
Attachment: Explanation of terms
1. Anonymous Identifiers: Anonymous identifiers are usually random strings
that are usually used to identify some user devices, including specific
mobile devices. For example, the International Mobile Equipment Identity
(IMEI) of the mobile phone, the hardware address (MAC) of the network device
of the mobile phone, etc.
2. Cookie: A mechanism that supports server-side (or scripting) storage and
retrieval of information on the client-side, extending Web-based
client/server applications by adding simple, persistent client-side state.
The server sends a status message while returning the HTTP object to the
client, which is saved by the client. The range of URLs valid in that state
is described in the state information. After that, all HTTP requests within
this range initiated by the client will return the current value of the
status information from the client to the server, and this status
information is called Cookie.