How To Safely Navigate Office 365 While Working Remotely
- by Brittany Day
With many employees working remotely due to the COVID-19 pandemic, more organizations than ever are moving to Office 365. Attackers have matched this trend, directing more of their exploits at Office 365 than ever before.
The default security features in Office 365 alone are alarmingly insufficient in protecting Office 365 email users against credential phishing, account takeovers and other advanced exploits. According to Osterman Research, despite existing protection, an astounding 40% of Office 365 customers have experienced credential theft nevertheless.
Defense-in-depth is essential in remaining safe and successful in this dangerous time. The FBI has issued multiple warnings regarding sophisticated COVID-19 related business email compromise (BEC) scams targeting cloud email users, and strongly urges businesses to take immediate action and implement critical additional layers of email protection in Office 365. Consistent with the FBI’s findings, Guardian Digital has identified and blocked more malicious emails targeting Office 365 users in April of 2020 than in any other month in the company's twenty-year history.
What Are My Risks Using Office 365?
During this uncertain, fearful time, it is critical that remote workers fully understand the digital threats they face on a daily basis. These threats include:
- Phishing: Cyber criminals are taking advantage of remote employees’ increased dependence on email, along with the curiosity and fear that are characteristic of the current environment, and are launching sophisticated coronavirus-related phishing campaigns. These scams employ highly deceptive tactics which include impersonating government agencies, advertising fraudulent test kits and asking for donations. According to the US Department of Homeland Security, there has been “an increase in phishing attacks under the guise of coronavirus-themed emails containing attachments”.
- Malware: Threat actors are exploiting the uncertainty and urgency surrounding the COVID-19 pandemic to spread dangerous malware designed to infect and destroy users’ computers by wiping files or rewriting a computer's master boot record (MBR). These coronavirus-themed malware variants are geared towards destruction, rather than financial gain.
- Insecure networks: During the COVID-19 crisis, incidents involving insecure configurations of services and firewalls have increased, as administrators are taking shortcuts to enable remote access. From dealing with insufficient bandwidth, undersized VPN infrastructure and limited availability of managed devices for employees to take home, many businesses are unprepared for the challenges that the COVID-19 pandemic has brought - and network security has suffered.
- Office 365 vulnerabilities: Microsoft Exchange Online Protection (EOP) - the default security provided in Office 365 - is glaringly inadequate, leaving remote employees vulnerable to credential phishing, account takeovers and other advanced exploits. According to the FBI, “Thirty percent of phishing attacks make it through existing systems and are opened by target users.”
We want to help you safely navigate Office 365 in this heightened threat environment. Here are a few tips and best practices to keep you and your business secure:
- Implement a comprehensive, fully-managed email security solution that seamlessly complements Microsoft Exchange Online Protection (EOP), providing the critical additional layers of security that Office 365 lacks.
- Choose a strong password and enable multi-factor authentication.
- Ensure that Azure AD password sync is configured correctly.
- Enable mailbox auditing and unified audit logging in the Security and Compliance Center.
- Disable legacy email protocols (if not required).
We recognize that properly setting up and securely navigating Office 365 while working remotely may seem challenging and overwhelming. The harsh reality is that organizations cannot rely on administrators to configure their cloud email service to be 100 percent secure. Implementing a remotely-managed cloud email security solution that seamlessly complements Office 365 default protection with critical additional layers of defenses is the most effective way to fortify cloud email against today’s advanced exploits.
Want to learn more about how to prevent attacks in Office 365? If so, be sure to check out our free Office 365 protection guide. For more advice on how to stay safe online in this frightening time, subscribe to our weekly Behind the Shield newsletter. Have additional questions on how to safely navigate Office 365? Please do not hesitate to reach out to us - we are eager to help!
- Effectively Securing Business Email Accounts: Are Employees the Weakest Link?
- Encryption: An Essential Yet Highly Controversial Component of Digital Security
- Business Email Security Redefined: Key Benefits of Securing Your Business Email with Guardian Digital
- 8 Business Email Security Best Practices
- Demystifying Email Encryption: Stop Sender Fraud
- Demystifying Phishing Attacks: How to Protect Yourself Now
- Demystifying Tax Fraud: How to Avoid Falling Victim to Deceptive, Costly Scams This Tax Season
- Coronavirus Phishing Scams are On the Rise - Is Your Business Email at Risk of Infection?
- Dave Wreski: Founder of Guardian Digital – Open Source Cloud Email Security
- New Ransomware Warnings: Is Your Business Safe from This Silent Threat?
- FBI: Existing Cloud Email Protection Inadequate Against Phishing, Ransomware
- Email Risk is Universal: Securing Business Email in Every Industry Sector
- How To Safely Navigate Office 365 While Working Remotely
- Tips and Advice for Staying Safe Online During COVID-19
- Why Your Business Needs Better Email Security
- Defending Against COVID Email Spoofing Attacks with DMARC
- You’ve Got Mail: How To Tell If It’s Fraud
- Open-Source Security Is Opening Eyes
- Think Like A Criminal: How To Write A Phishing Email
- The Four Biggest Email Threats Your Business Faces Today
- Everything On DocuSign Phishing Attacks in 3 Minutes
- Understanding Payload-Less Email Attacks in Under 3 Minutes
- Demystifying Fileless Malware in Less than 3 Minutes
- How to Protect Sensitive Data & Maintain Client Trust in Financial Services Industry
- Exchange Servers Are Vulnerable - Learn How To Secure Your Email Server Now
- Apache SpamAssassin Leads A Growing List of Open-Source Projects Taking Steps to Correct Instances of Racism and White Privilege
- Cyber Risk Is Greater than Ever in the Legal Industry
- Understanding Malicious URL Protection - And Why You Need It to Secure Your Email
- Email Security for SMBs Beyond COVID-19
- Email Risk Is BIG for SMBs - How To Protect Your Business Now
- Email Threats By The Numbers: How Big Is My Risk?
- The Modern Email Threat Landscape: Where Traditional Defenses Fall Short
- Why Email Security Is More Important Than Ever in This 'New Reality'
- The Threat of CEO Fraud Extends Beyond the C-Suite
- Top Email Security Trends Putting Your Business at Risk of Attack
- Think Like A Criminal: What You Need to Know About Social Engineering Attacks in 2020
- Managed Services: A Key Element of Effective Email Security that Even Modern Solutions Lack
- How To Secure Your Remote Workforce: Advice from Leading Security Experts
- FBI: The 2020 Presidential Election Is Under Attack by Email Scammers
- AT&T Security Researchers Identify a Correlation between Strong Cybersecurity and Business Success
- Your Current Approach to Email Security May Not Be Enough
- Ways to Prevent Email Account being compromised in a Breach
- Celebrating 20 Years of Revolutionizing Digital Security
- IBM Closes its $34 Billion Acquisition of Red Hat
- Interview with Security Expert and Author Ira Winkler
- What is Phishing Email? How to prevent Phishing email scams?
- Ways Our Business Email Exceed Your Expectations
- Spear Phishing Protection - Definition & How To Recognize Spear Phishing Email
- What is Whaling (Whaling Phishing)? & How to Prevent Whaling attacks?
- Ransomware Attack Explained - Best Practices For Ransomware Protection
- Business Email Compromise (BEC) - Definition & Prevention From BEC Attacks
- Wire Transfer Scams Involving Real Estate Transactions: How to Prevent Fraud with Effective Email Security
- Guardian Digital and Mautic: A Dynamic Open-Source Duo
- Email Malware - How to Recognize & Prevent Malware Email Attack
- An Open-Source Success Story: Apache SpamAssassin Celebrates 18 Years of Effectively Combating Spam Email
- What is Spam Email - Types & How to Prevent Spam Emails?
- Email Virus - Complete Guide to Email Viruses Plus Best Practices
- What Is A Zero-Day Attack & How To Prevent Zero Day Exploit?
- 2020: A New Decade of Digital Threats - Is Your Business Email Secure?
- Linux: An OS Capable of Effectively Meeting the US Government’s Security Needs Heading into 2020
- Email Security: Complete Guide on Email Security & Types of Email Threats
- Guardian Digital Keeps its Customers Protected from Intel Design Flaw
- Security Spotlight: Open Source Email Security Solutions
- Top Six Advantages of Open Source Development/Products
- Python and Bash - Contenders for the most used scripting language
- Guardian Digital Outlines Top 4 Benefits of Choosing Cloud
- Unrivaled Protection Against Today’s Most Dangerous Threats
- Guard Your Email Accounts Against Today’s Most Dangerous Threats
- Security Highlights from Defcon 26
- Linux / Open Source FAQs: Common Myths / Misconceptions
- Email Security FAQs Answered by Guardian Digital
- Guardian Digital Mail Systems: Designed to be Secure Without Fail