A good backup application can actually help you to enforce
your retention policies. When you create a comprehensive
backup of your Microsoft 365 environment, all of the Microsoft
365 data is copied to a centralized backup location. In other
words, your backup will likely contain data from Exchange,
SharePoint, OneDrive, and the other Microsoft 365 applications
– all of the places where Teams data is stored. Because the
backup is acting as a repository for so many different types of
data, you can apply a retention policy to the backup, and that
retention policy will in turn extend to the data that exists
within the backup.
Reason 4: Internal Security Threats
Yet another reason why it is so important to back up your
Microsoft 365 environment is because backups act as a line of
defense against internal security threats.
Internal security threats come in a variety of forms, but they
are generally tied to a user who has malicious intent. We've
probably all heard stories of employees that know that they are
about to be fired and delete as much data as they possibly can
on their way out the door. I have also heard some stories of
employees who disagree with some of their company's
business practices and have set out to sabotage IT systems as
an act of revenge.
I was once fired from an IT job for putting in
my two-week's notice. I was told that the fact
that I was resigning made me a security risk. I
had no ill feelings toward the organization,
but apparently the upper management was
paranoid about IT employees going rogue
and had established a policy of immediately
terminating anyone in the IT department that
was planning to leave the company.