Microsoft 365

Use it anywhere and anytime you need, from any of your devices

Office 365 provides a convenient and secure way for you to share your emails, schedules, and files with your colleagues.

The latest features are always available!

Downloading from the cloud allows you to use the latest versions of Office applications all the time.

Access your files from anywhere!

Large-capacity cloud storage enables you to access your files even when outside the office. You can also do tasks from a tablet.

Active communication!

Achieve information sharing, operational efficiency, and productivity improvements through the use of email, chat, online meetings, phone calls, file sharing, and more.

What is Microsoft 365?

Many customer companies around the world have migrated their business platforms to cloud services. This cloud service for Microsoft Office applications, which hold overwhelming market shares, enables you to do tasks through multiple devices such as PCs, tablets, and smartphones both online and offline environment.
In addition to Office applications, KDDI can offer security features as well.

Support for more efficient telework and your other DX projects

The latest versions of Office applications and useful business tools accessible anytime, anywhere


Use both the installation version and online version of Office applications!

So long as you have a web browser, Office Online enables you to use Word, Excel, PowerPoint, and OneNote with devices that do not have Office installed. In addition to viewing documents, you can perform basic editing.

Office applications can be installed on up to 15 devices per ID.

Applications are licensed on a per user basis, not a per device basis. The license allows each user to install the applications on up to 15 devices. Therefore, you can use Office applications from your desired devices according to your purposes-- for example, use a PC in the office, a tablet when you are outside the office, and your Mac at home when working from home.

Concurrent editing dramatically reduces rework

A file stored on SharePoint can be opened and edited simultaneously by multiple people using Office applications or Office Online. You can see who is editing which part of the file, enabling you to dramatically reduce rework.

The latest versions of applications are automatically applied from the cloud

For Microsoft 365 Apps for business/enterprise, once an application has been upgraded to the latest version on the cloud, the application is installed automatically, sparing the system administrator the trouble of updating the application (you can choose how to apply updated programs). Thus, you can continuously use Office applications to which the latest features and security updates have been applied.

Other features

  • Automatic application of the latest security updates

Exchange Online

Standard 50 GB large-capacity mailbox

Office 365 offers a 50 GB mailbox as standard. You can create a personal archive mailbox and maintain the archive online.

Peace of mind thanks to thorough spam countermeasures

In addition to detecting spam by multiple filters including sender, receiver, and sender ID, past detection results are also employed.

Further, you can configure settings to receive only emails sent from specific domains and written in specific languages. In addition, Exchange Online Protection, a feature that enables multi-layered defense, is provided as standard.

Check your team's schedule immediately

Check the group schedule to know your team members' schedules. You can check a selected member's schedule to learn when he/she will be free, helping you to adjust your team's meeting schedule.

Use the features from almost all devices

In addition to PCs and Macs, you can use the features from almost any kind of device through a web browser, dedicated app, or ActiveSync.
Because data is managed on the cloud, devices synchronize automatically.

Other features

  • Schedule management
  • Facility/equipment reservation
  • Contact management
  • Task management


Permissions management per file, library, and site

SharePoint allows you to manage permissions--for example, per file, library, or site.
If you store files on SharePoint or OneDrive for Business, you can directly specify the persons who need to share each file from an Office application.

Team site to facilitate information sharing

You can use a team site for sharing information on a team or project basis. By using a template, you can easily build a message board for sending out information and a document library for collaborative work.

OneDrive for Business: large-capacity personal storage

OneDrive for Business allows you to use personal storage of up to 1 TB per ID.
By using the OneDrive for Business synchronization app, you can synchronize OneDrive for Business with local device folders.

Other features

  • Document management function
  • Building sharing sites easily using templates

OneDrive for Business

User-friendly interface

Easy synchronization between the cloud and PC

Access from anywhere using multiple devices

Efficient collaboration

Other features

  • Secure, safe, useful cloud storage
  • Storage capacity: 1 TB (assigned per Office 365 user)
  • Manage application versions.
  • Use the apps offline, too.
  • A synchronization app is also available.

Microsoft Teams

Communication tools for enhanced teamwork

Use features such as online meetings, phone calls, chat, file sharing, and real-time collaboration.
Create a team for a customer's project to realize prompt communication.

User authentication, devices, applications, and data are properly managed and protected for enhanced security

Azure Active Diectory

Cloud-based authentication brings Office 365 and Intune together

Authentication base provided as a cloud service

Because the authentication base is provided as a cloud service, you can authenticate from anywhere.
Access business applications in a secure environment from any device, whether in or outside the office.

Linkage with various SaaS apps on the Internet

You can use the same authentication method for a variety of applications provided by Office 365.
Since you no longer have to manage the ID and password per application, you can reduce the risk of loss of IDs and passwords.

Secure single sign-on (SSO)

Configure multi-factor authentication and conditional access settings per user.
Realize access controls that meet the needs of the situation, such as a more robust authentication method for use from outside the office or use by subcontractors.

※The Microsoft Intune license is required for device-based access control.

Microsoft Intune

Features for managing mobile devices and mobile apps

Unified management of multiple devices

Device management can be unified under the same policies regardless of device OS and usage location.

Prevention of theft and loss of mobile devices

Policies can be used to apply appropriate security settings to mobile devices.
Features for locking devices and deleting data remotely are also available, enabling you to prevent the theft of data on the device.

Deployment and protection of business applications

Perform application deployment for registered devices all at once and control extraction of data to non-business applications by protecting application data.

※An Azure Active Directory Premium license is required for device-based access control.

Azure Information Protection

Categorizing/encrypting files in cloud storage or on devices to protect data

File categorization and encryption

File content is evaluated based on policies defined by the administrator, and encryption can be set to be applied automatically.

Permissions-based control

Access permissions are set per file category, enabling you to share files among internal and external users within the scope of intended permissions.

Tracking and handling of unauthorized access

Track access to files, and if cases of unauthorized access are found, you can revoke access permissions, preventing unauthorized take-out, loss, and theft of internal data.

※An Azure Information Protection Premium P2 license is required for the automatic labeling function.
※The Azure Information Protection Viewer is required for external users to open encrypted files.

Other Features

Advanced Threat Analytics (ATA)

On-premise solution that detects attacks on credentials and unauthorized behavior to prevent serious damage.
This solution monitors the actions and behaviors of Active Directory users. If an abnormal action or behavior related to credentials is detected, the organization administrator is informed of such fact.

Microsoft Defender for Identity

An Azure service that detects attacks aimed at credentials on an on-premise Active Directory.
Unlike ATA, use of this service enables you to manage the management server on the cloud.

Microsoft Cloud App Security (MCAS)

The cloud application environment is protected by three features: Cloud Discovery, App Connector, and Proxy Protection.
In addition to monitoring the abnormal behavior of cloud applications and user activities, you can manage user login and activities.

Security feature that provides greater functionality than Windows (R) 10 Pro and protects your system from evolving cyberattacks and targeted threats

Windows Defender Credential Guard

Authentication information will never be stolen even if the system is infiltrated.

Storing authentication information in a secure environment

Important authentication information is stored in a secure environment independent of the environment in which Windows (R) OS operates, which denies access to malware that has infiltrated Windows (R) OS.
Even if a device is infected by malware and local administrator access has been stolen, you can prevent the damage from spreading.

※This feature can be set and managed using group policies, the command prompt, and PowerShell.

Common problems until now

  • Because authentication information is stored in Windows OS as hash values, it can be stolen by an attacker.
  • An attacker who has stolen authentication information can break into devices on the company network one after another and eventually obtain illicit access to the company's overall administrator accounts. (Pass the Hash attack)

Solution with Windows 10

  • Credential Guard restricts access to authentication information.
  • Because authentication information is isolated in a virtual machine, authentication information is cut off so that attackers cannot steal the hash values.

With respect to targeted threats, which are one of the issues we must address these days, people tend to focus only on measures that address the gateways to the attack, as seen in targeted email and zero-day attacks.
If you analyze attack techniques, however, you will come to realize it is important to protect authentication information and account information as well. Credential Guard protects your authentication information from attackers, preventing Pass the Hash attacks and thus protecting the company's overall administrator authority as well as preventing theft of data.

Windows Defender Device Guard

Executing only verified applications and protecting devices

Only verified applications are permitted to be executed

Execution of malware, such as targeted email attacks and applications unauthorized by the administrator, is blocked.
Unlike measures that rely on a conventional blacklist (in which known malware must be registered in advance), this feature can also protect against zero-day attacks.

Possible to start protecting the device from boot processing upon starting the device

Because the device is started by secure boot, it is possible to prevent operation of malware transmitted to master boot upon starting the device.

Common problems until now

  • An attacker sends a spoofed email to prompt the email recipient to execute a malicious application.
  • The device is infected with malware, and a backdoor to a server is created.
  • The attacker launches an attack through the backdoor to steal data.

Solution with Windows 10

  • Device Guard limits execution to only verified applications.
  • Execution of malware is blocked; therefore, the system is protected from targeted and zero-day attacks.


The methods employed by targeted email attacks evolve continuously. Attackers use a variety of spoofing techniques to deceive receivers. It is not enough to tell users not to open suspicious emails.
In addition, new viruses and variants as well as zero-day attacks cannot be prevented by traditional anti-virus software. Device Guard protects your devices from becoming infected with malware.

Microsoft Defender For Endpoint

OS standard client

A behavior sensor built into the OS enables you to record the details of various behaviors in the form of logs.
There is no need to expand and manage agents on devices.
This enables you to attain extremely high performance.

High detection accuracy

Based on enormous amounts of data collected, stored, and analyzed by Microsoft, detection is carried out according to a knowledge base that employs the results of machine learning and security analyses.
The data is always kept up-to-date, allowing you to recognize signs of attacks as well.

Prompt, flexible response

Obvious threats will be removed automatically upon detection. Moreover, it is possible for the administrator to select the desired action flexibly for the target client device from the console.

Microsoft Defender for Endpoint functional examples

Monitoring with up-to-date information

Collected data is analyzed using up-to-date information. The administrator does not have to do anything. This feature can recognize not only new threats but also signs of an attack.

Prompt action

You can take the necessary actions for the target client device from the management console, including stopping a specific suspicious program or disconnecting from the network.

Identifying root causes

You can investigate through which channels an incident spread and what kind of impacts an incident has had as far back as 180 days ago.

Security integrated management

By linking your system with the Microsoft Defender series, you can perform comprehensive security monitoring and management.

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