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▪ Integrating private cloud with public cloud adds complexity to the
infrastructure and requires significant effort and time to maintain and
evolve these two different types of clouds when an organization needs
to change.

▪ Intellectual property problems and legal risks due to the lack of the
ability to see and control the public cloud infrastructure where it is
based on the cloud service provider to protect data while adhering to
local and international regulations and having part of the responsibility
on the companies using these services if a breach occurs.

▪ Cost concerns because if cloud resources are used for a long time, this
may be reflected in the overall price, which in turn becomes higher
than expected.

In the end, the comparison between these three types of clouds
can be summarized as follows:

Comparison Public Clouds Private Clouds Hybrid Clouds
Cloud devices used
Rental Services The entire cloud For a private cloud, an
Scalability Public cloud service infrastructure (e.g., organization must provide
Cloud Maintenance providers such as physical servers, storage, the infrastructure while a
Amazon or Microsoft networks, etc.) must be public cloud service
Costs provides the purchased by the provider provides the
infrastructure. organization that owns the public cloud
Accessibility private cloud. infrastructure.

Anywhere online, for A private cloud data
example, there are center is usually within an
known data centers for Within the network of the organization's private
the public cloud (AWS, company or organization. network while a public
Azure) in many cloud data center can be
countries. anywhere online.

Unlimited scalability. Private cloud scalability is The scalability of private
limited by the amount of cloud services and
infrastructure, so after a resources is limited by the
certain range it is underlying infrastructure
impossible to scale unless available.
the organization purchases
and sets up additional
hardware.

A cloud service provider The user enterprise itself is The private cloud is
is responsible for setting responsible for its managed by the
up and maintaining the preparation and organization that owns it
public cloud. maintenance. while the public cloud is
There are no initial managed by the cloud
capital expenditures, a service provider.
monthly fee is paid for
the public cloud services It involves huge initial With the private cloud, an
used, and the more you capital expenditure as an organization incurs both
use, the more you pay. organization must internal capital
The total price may be purchase, set up, and expenditure plus monthly
higher than you maintain cloud devices to operating expenses to
expected, especially maintain them. Therefore, maintain it, while for the
when you use a lot of the organization may need public cloud it incurs a
their services for a long to hire manpower, which monthly fee only for the
time. means monthly operating services and resources it
The public cloud is expenses as well. uses.
publicly available so
anyone can access its Only an organization that Private cloud services can
resources and services owns the private cloud can only be accessed by the
access private cloud organization while anyone
resources and services. can access the services
provided by the
organization on the public
cloud.

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