Looking for a Shared Responsibility
Model
Many users will always wonder
about the safety and security of their data in a cloud service. It is true that
public cloud service providers have the responsibility of compliance and
security for their users, and they will have to make sure that their cloud
infrastructure is safe from any outside threats. In the early days, when cloud
service was just gaining the attention of users, the security of the data was
one of the biggest concerns. It was a debate that how cloud service providers
will maintain the level of security to satisfy the concerns of customers, who
are willing to use cloud services, or who are already using it. Since then,
various cloud service provider platforms have done a wonderful job to make
things more satisfactory for their customers. They have focused on the essence
of security more than anything. It is a great stamp of authority for the great
security of the cloud providers that even the CIA has started using cloud
services for their strategic decisions. They are using the cloud service AWS
provided by Amazon.
It is vital for all stakeholders
to understand why data protection is important in the cloud. It is important
for the integrity and reputation of public cloud providers, because competition
in this field is getting tougher, and customers are looking to use cloud
providers, who are providing great safety and security at their platforms. The
data security is important for customers or clients because there might be
extremely critical sensitive information saved on a cloud platform, and if it
is not secure, then things can get worst for the users. In this scenario, it is
vital to understand that there is a shared responsibility to make cloud
platforms safe and secure in every aspect. You should understand as a customer,
what shared responsibility model is. The users should have this awareness that
the security of the cloud is not only the responsibility of the cloud
providers, but cloud users are also responsible for the security of any data,
which they save on their cloud platforms.
If a company is using cloud
services on their premises, then they should make sure that cloud data is
handled safely and securely. Every cloud provider gives certain guidelines
about managing your cloud data, so it is your responsibility as a user that you
follow those given guidelines. There can be a situation, where a company may
use more than one cloud provider, so if they may need to migrate data from one
cloud provider to the other cloud provider, and both cloud providers may have
different security parameters. So, it is the responsibility of the company to
ensure that they securely move data from one platform to the other.
Let’s make it simpler for you to
understand a shared responsibility model in the context of Office 365. Office
365 is a subscription service launched by Microsoft including the cloud
services. So, if you are using Office 365, and wondering how the shared
responsibility model works, then we explain it to you. If you are using Office
365, and saving data on its cloud platform, then there are few primary
responsibilities on your end, and at the end of Microsoft. As s user, you are
completely responsible for the Office 365 data, which you have saved on the
platform. Whatever data has been saved on Office 365, it is your responsibility
to make sure that it is safely accessed and used. You might have installed
Office 365 on smartphones or on laptops; in both cases, you are responsible for
the security of these applications. Moreover, you may have made multiple
accounts to allow your employees to access Office 365 from various locations,
so it is again on your shoulders to manage those accounts and identities and
make sure no information is leaked. The network controls, as well as the
operating system’s security in the premises, is also the responsibility of the
customer.
We have mentioned a few important
security responsibilities for the customers as per the shared responsibility
model, and now it’s time to look at security responsibilities held by Microsoft
for its Office 365 users. It is essential to know that Microsoft has a global
infrastructure, which they manage for their customers from all corners of the
world. Office 365 resides within this global infrastructure, which means that
the primary responsibility of Microsoft is to keep this infrastructure safe and
secure from any kind of threat. They may have physical data centers, physical
networks, as well as, physical hosts to manage Office 365, and they have to
keep all of these infrastructure parts secure. Microsoft is also responsible
for the security of its database, networking, as well as, storage. The data
centers and data levels of Microsoft have to be protected by them from any
outside threats because there are a variety of threats. For instance, an
attacker can attack data centers, and hack the data for ransomware. The data
centers may accidentally delete data or it may be corrupted by any virus or
malware.
In all such cases, Microsoft is
responsible to protect data centers, because all data of the customers from all
over the world, is residing at this datacenter. Microsoft 365 has also provided
supporting technology such as Office 365 Data Replication for DC to DC
geo-redundancy, as well as, Recycle Bin, which is used for short term data
recovery. Looking at both responsibility of the Microsoft and users of Office
365, it is evident that in a Shared Responsibility Model, both are responsible
for different levels of security. Therefore, it is vital for the users to look
at the shared responsibility model of Office 365, and understand how they can
make sure that their data is secure. It is a wrong perception that if you are
using any cloud platform, then it is their responsibility to protect your data
on all levels of security. You are also responsible for the security of data.