Office 365 Security Review

O365 is a fantastic resource for modern companies. Our team has a thorough Office 365 security review and configuration process to assess all aspects and identify any threats or areas for improvement in your Office 365. 

If you have any concerns regarding your Microsoft safety from threat actors, cyber criminals, or other potential issues, our team can help you with your security controls.

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Office 365 Overview

Office 365 is a powerful tool that provides all sorts of business services from email to cloud storage, and it’s much more than just another productivity suite.

It provides more than just email and office productivity tools – with over 200 million active users worldwide who are constantly growing their products’ capabilities there really isn’t much missing when compared to Microsoft on-premises solutions (such as Exchange Server).

With Office 365, you can get access to an array of tools that will streamline your workflow and give you the freedom to work from anywhere. The security aspect should also not be overlooked though – it’s important in every business!

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Stephen Rapicano
Stephen Rapicano
August 14, 2023
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5 out of 5
A totally professional engagement from start to finish with the highest quality advice and guidance.
Thank you for taking time to leave this feedback, we appreciate your support.
John Blackburn (CaptainJJB)
John Blackburn (CaptainJJB)
August 14, 2023
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5 out of 5
great experienced team, very knowledgable and helpful, willing to adjust the product to suit the customer. Would recommend.
Thank you for your time towards this feedback and continued support.
A A
A A
August 17, 2023
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5 out of 5
The service provided by Cyphere is second to none. High quality testing services. Very reliable and professional approach.
Another five-star review! Thank you for your support and for making our day brighter!
Lee Walsh
Lee Walsh
August 21, 2023
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5 out of 5
Cyphere provide a personal and assured service, focusing on both pre and post analysis in supporting us to change and embed a security cultured approach.
Holistic review just like the holistic cyber approach, thank you for the review.
Luc Sidebotham
Luc Sidebotham
August 17, 2023
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5 out of 5
Highly recommend Cyphere for pen testing. The recommendations in the report were comprehensive and communicated so that technical and non-technical members of the team could follow them.
Thank you so much for your glowing five-star feedback! We greatly appreciate your recommendation of Cyphere for pen testing.
mike Dunleavy
mike Dunleavy
August 31, 2023
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5 out of 5
Harman and the team at Cyphere truly are experts in their field and provide an outstanding service! Always going above and beyond to exceed customer expectations, i honestly cant recommend them enough.
Thank you, Mike, for the 🌟feedback, shall pass these kind words to Harman !
Mo Basher
Mo Basher
August 12, 2023
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5 out of 5
We had penetration tests service for PCI DSS compliance program from the Cyphere! Very professional, efficient communication, great findings that improved our system security posture! Highly recommended!
Thank you for the stellar five-star review! We're over the moon with happiness, just like a rocket fueled by your kind words.
Dan Cartwright
Dan Cartwright
August 14, 2023
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5 out of 5
Cyphere were great in both carrying out our penetration testing and taking us through the results and remediation steps. We would gladly use them for future projects.
Your five-star feedback has us doing a victory dance! We're as thrilled as a penguin sliding down an icy slope. Thank you, Dan, for waddling along with our business and leaving such a fantastic review!
nigel gildea
nigel gildea
September 4, 2023
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5 out of 5
I’ve worked with Cyphere on a number of penetration tests in addition to some cyber essentials support and certification! I’ve found them to be highly skilled and professional. They have consistently understood and met our project requirements and added value to the programme!
Glad you have positive feedback about our security compliance and technical risk offerings. Thank you.
James Anderson
James Anderson
August 14, 2023
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5 out of 5
Cyphere undertook pen testing for us recently. The process was very smooth, and the team were flexible in working around our constraints. The report was clear, actionable and perceptive. I would happily recommend their services.
Holy guacamole! Thank you for being an awesome customer and for brightening our day.
Adil Jain
Adil Jain
August 14, 2023
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5 out of 5
Cypher has been outstanding partner to our agency. I've tried many in the past but they have been extremely meticulous in getting our systems secured. Top class service, we will be working with them for many moons.
Wow, you've granted us the ultimate high-five with your amazing five-star review. Thanks for making us feel like rockstars!
Shaban Khan
Shaban Khan
August 23, 2023
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5 out of 5
Cypher has been an excellent partner and helped us achieve our goals with a great level of expertise, communication and helpfulness making the whole process easy to understand and complete. Well recommended and look forward to working with them again. We highly recommend cyber security consultants to any business.
Thank you for the glowing feedback.
Rajeev Kundalia
Rajeev Kundalia
September 16, 2023
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5 out of 5
I recently had the pleasure of collaborating with Harman for a comprehensive PEN Test through his company, Cyphere. From our first interaction, it was clear that Harman embodies the very definition of an expert in the field of cybersecurity. His vast reservoir of knowledge and exceptional skill set became apparent as he navigated through complex security landscapes with ease and precision. Harman's remarkable ability to convey intricate details in a comprehensible manner made the process seamless and extremely enlightening. His dedication to providing top-notch service was evident in every step, ensuring not only the success of the project but also fostering a sense of security and trust in our collaboration. Working with Harman was nothing short of a fantastic experience. His bright intellect and professional approach to his work were genuinely awe-inspiring. What stood out the most was his genuine passion for his field, reflected in his meticulous approach and the innovative strategies implemented throughout the project. Not only is Harman a maestro in his field, but he's also an incredible person to work with - a true professional who takes the time to understand his client's needs and exceeds expectations at every turn. His vibrant personality and enthusiasm make working with him an absolute joy, fostering a collaborative environment where ideas flow seamlessly. If you are looking for someone who embodies expertise, professionalism, and a personable approach, then Harman and his company, Cyphere, should be your go-to. I couldn't recommend their services more highly. A true beacon of excellence in the cybersecurity landscape!
Tobi Jacob
Tobi Jacob
July 10, 2023
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5 out of 5
I had an amazing experience working with Cyphere! Their communication was top-notch, making the entire process smooth and efficient. From the initial contact to the final result, they were always prompt in getting back to me. I found their team to be incredibly responsive and attentive to my needs. The ease and effectiveness of our communication truly set them apart. I highly recommend Cyphere for their exceptional service and commitment to client satisfaction.
First impressions are everything - we're thrilled that ours was a hit! Thanks for choosing us.

Is office 365 email secure?

Whether it’s applications, devices or storage including backups, these are the three main categories where email data resides. Before understanding whether Office 365 is secure or not, it’s important to understand the cloud model concept. Just like major cloud providers, Microsoft provides an in-built tool that can be used to assess a company’s security posture and office 365 review when it comes to its O365 services and provides improvement ideas. Also, Microsoft Office offers this product as part of a shared responsibility model in cloud computing. This means:

Cloud provider is responsible for security of the cloud

Tenant or organisation client is responsible for security in the cloud

As customers have control of user accounts, access, authentication and authorisation of O365 data, it is the customer’s (tenant organisation) responsibility to maintain the security of their sensitive data. There are good security controls out of the box that come with Office 365 review, such as Data Loss Prevention (DLP) controls help security teams with data transfer violations involving sensitive information. They also support modern authentication. However, they are not auto-magically serving public sector organisations demands.

Common O365 security misconfigurations and vulnerabilities

Our certified security professionals will perform an office 365 security review to identify misconfigurations that may have occurred. Also, We’ve been able to handle our cloud security with the Office 365 Security and Compliance center better. It is very common for potential threats to be found during pentesting office 365 process, and our team will support the mitigation of these cyber threats by utilizing the Microsoft secure score.

Oftentimes, we discover in O365 pentesting that users have incorrect system access controls, which leaves businesses unsafe from many potential dangers. Actual vulnerabilities identified within the product had also increased the attack surface for Office 365 users. Some of these recent flaws include improper validation (CVE-2020-16875) and smart bypass issues (CVE-2020-171324). Common Office365 misconfigurations include lack of multi-factor authentication for administrator account, password sync and mailbox auditing. 

office 365 security review areas to consider

This thorough office 365 security review includes vendor cyber security best practices including but not limited to the following security review areas:

  • Accounts and authentication policies
  • Email cyber security configuration review and Exchange Online Protection
  • Mobile Device Management Areas
  • Data and secure storage management
  • Application permissions
  • Auditing configuration & monitoring controls
  • O365 Active Directory related security concerns

Benefits of Office 365 Security Assessment

Assurance that secure email strategy is effective

An Office 365 security assessment can help you ensure that your secure email strategy is effective by identifying gaps in your security posture and providing recommendations for improvement.

Validation of Office 365 security controls

An Office 365 security assessment can help you validate the effectiveness of your Office 365 security controls by testing them against known vulnerabilities and best practices.

Ensure strong authentication and data encryption practices

An Office 365 security assessment can help you ensure that you are using strong authentication and data encryption practices by reviewing your current security practices and providing recommendations for improvement. It is advised to enable multi-factor authentication.

Sufficient logging and monitoring to ensure readiness for cyber security incidents

An Office 365 security assessment can help you ensure that you have sufficient logging and monitoring to detect and respond to cybersecurity incidents quickly and effectively.

User permissions review and add-ons review

An Office 365 security assessment can help you review user permissions and add-ons to ensure that users only have access to the resources they need and that add-ons are not posing a security risk.

Minimise chances against account takeover cyber attacks and ransomware

An Office 365 security assessment can help you minimise the chances of account takeover cyberattacks and ransomware by identifying and addressing any security vulnerabilities that attackers could exploit. 

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Follow best security practices

o365 security assessment findings are mostly around areas described under common misconfiguration. As a standard best practice checklist, an Office 365 installation should follow the following areas:

  • Unified Audit Logging
  • Multi-Factor Authentication
  • Privileged accounts management
  • Protecting against malware using features based on subscriptions such as anti-phishing, auto-forwarding, ATP safe attachments and ATP safe links.
Office 365 Security Practices

Microsoft Office 365 provides cloud resources, securing it is your responsibility.

O365 Pentesting Methodology

Our pentesting office 365 approach involves benchmark-based o365 security assessment as well as standard pentest methodology extended to include Microsoft office cloud-specific cyber security risks and compliance center issues in office 365 review. We support industry-leading testing standards and methodologies for o365 pentesting:

Identity and Access Management

Generally, these include checks on the use of higher privilege administrator accounts, use of MFA, password policy, IAM policies, access keys, conditional access policies, credentials, administrator account usage policies and other security features.

Review Authentication Architectures

Authentication and authorisation problems are prevalent cyber security risks and compliance centre issues that come in an Office 365 review.

Network Security

This area in pentesting Office 365 involves checks around network security controls such as ingress, egress rulesets, flow logging, traffic restrictions, and least access privileges.

Logging API Calls, Events

This phase covers API configuration, log file validation, encryption, access checks, and configuration management for account security and monitoring.

Monitoring

The monitoring phase is one of the critical tasks responsible for alerting relevant contacts during an incident. This involves reliance on the logging and related configuration parameters to ensure the right metric filters are in place.

Why Cypher for Office 365 security review?

Expertise

Our team of experts has deep knowledge of Office 365 security and has experience conducting security assessments for various organisations.

Thoroughness

Our security assessments are comprehensive and cover all aspects of your Office 365 environment, including security controls, user permissions, and add-ons.

Actionable recommendations

Our security assessments provide actionable recommendations for improving your Office 365 security posture.

Commitment to customer satisfaction

We are committed to providing our customers with the highest quality of service. We will work with you to understand your specific needs and provide you with a customised solution.

Our Pentest Engagement Approach

Identity and Access Management1
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This phase involves reviewing identity and access management-related controls. Generally, these include checks on the use of higher privilege administrator accounts, use of MFA, password policy, IAM policies, access keys, conditional access policies, and credentials usage policies.
Review Authentication Architectures2
Read More
Authentication and authorization problems are prevalent security risks and compliance center issues that come in an office 365 review. Most mobile apps or azure web applications implement user authentication. Even though part of the authentication and state management logic is performed by the back end service, authentication is such an integral part of most mobile app architectures that understanding its common implementations is important.

Even though part of the authentication and state management logic is performed by the back end service, authentication is such an integral part of most mobile app architectures that understanding its common implementations is important.
Network Security3
Read More
This area in pentesting office 365 involves checks around network security controls such as ingress, egress rulesets, flow logging, traffic restrictions, and least access privileges.
Logging API Calls, Events4
Read More
All major cloud service providers offer web services that record API calls for tenant account. This information contains various parameters such as API source, calls details, requests/response elements. This phase includes a configuration review of API calls for an account, log file validation, encryption at rest, access checks if logs are restricted from public view and access logging, configuration management and monitoring options.
Monitoring5
Read More
The monitoring phase is one of the critical tasks responsible for alerting relevant contacts during an incident. This involves reliance on the logging and related configuration parameters to ensure right metric filters are in place. These reviews include checks for real-time monitoring configuration, alarms for any changes made to access control lists, security policy/groups, routing tables, and related parameters.
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