Difference between Internet and Extranet

1. Internet :
An Internet is a public network and it is not owned by anyone. Since, it is a public network therefore anyone can access it without a valid username and password. Internet is the largest network in the case of number of connected devices. In this, there are numerous users and it provides lots of information to users. It acts as a tool for sharing information all over the world. 

2. Extranet :
Extranet is a private network and it is owned by a single or multiple organization. Since, it is a private network therefore no one can access it without a valid username and password. It acts as a medium to share the information between the internal and external members. It is more secure network and managed by numerous organizations. 

Let’s see the difference between Internet and Extranet: 

S.NO	Internet	Extranet
1.	It is used as public network.	Whereas it is used as private network.
2.	An internet is less secure because it has zero security level in the firewall.	While the extranet is more secure than the Internet.
3.	In the case of the Internet, anyone can access it without a valid username and password.	Whereas in the case of extranet, no one can access it without a valid username and password.
4.	A large number of users can access the Internet.	Whereas here, a limited number of users can access the extranet.
5.	An internet acts as a tool for sharing information all over the world.	Whereas it acts as a medium to share the information between the internal and external members.
6.	An internet is not owned by anyone.	Whereas extranet is owned by a single or multiple organization.
7.	An Internet is not managed by either authority.	Unlike the internet, it is managed by numerous organizations.
8.	An internet is the largest network in the case of number of connected devices.	Whereas in the case of extranet, it is small in terms of connected devices as compared to the internet.
9.	An internet is less costly than extranet.	Whereas in the case of extranet, it is more costly.
10.	It’s users are the general public.	It’s users are the employees of the organization which are connected.
11.	It is not owned by anyone.	It is owned by single or multiple organization.
12.	There is no regulating authority for Internet.	It is regulated by multiple organizations.
13.	It is maintained by ISP.	It is maintained by CIO, HR or communication department of an organization.
14.	It is the network of networks.	It is derived from Intranet.
15.	Example: What we are normally using is Internet.	Example: DELL and Intel using network for business related operations.

Internet	Extranet
The Internet is a global network that connects millions of devices and computers worldwide.	The Internet is a global network that connects millions of devices and computers worldwide.
It is open to everyone and allows access to public information, such as websites and online services.	An extranet is a closed network that requires authentication to access.
It is used for communication, sharing of information, e-commerce, education, entertainment, and other purposes.	Extranets are used primarily for collaboration, sharing of confidential information, and conducting business between organizations.
Users can access the Internet from any location with an Internet connection and a compatible device.	Access to an extranet is restricted to authorized users and is typically limited to specific devices and locations.
Security measures, such as firewalls, encryption, and secure sockets layer (SSL) protocols, are used to protect against threats like hacking, viruses, and malware.	Extranets employ similar security measures to protect against unauthorized access and ensure the privacy and integrity of shared data.
The Internet is a public network that is not owned by any particular organization or group.	Extranets are private networks that are owned and managed by the organizations that use them.
Examples of Internet-based services include email, social media, search engines, and online shopping sites.	Examples of extranet-based services include supply chain management, customer relationship management (CRM), and project collaboration tools.