Email Bomb Attacks: How to Stay Protected with Microsoft Defender
As businesses grow increasingly dependent on email, cyber attackers have become more creative and aggressive. One emerging tactic is the email bomb attack, where your inbox is flooded with thousands of messages in a short time, effectively locking you out of important communications and masking other targeted attacks like password resets or fraud.
What Is an Email Bomb?
An email bomb is a type of denial-of-service (DoS) attack on your inbox. Attackers send thousands of messages from legitimate but compromised sources to overwhelm your mailbox. While seemingly random, the real objective is often to distract, disrupt, or conceal more harmful activity such as unauthorized logins, wire fraud, or identity theft.
Microsoft Defender for Office 365 to the Rescue!
Microsoft has introduced powerful mitigation tools within Defender for Office 365 to detect and respond to such attacks. Some of the intelligent features include:
Automated inbox clean-up of bomb messages
Mailflow monitoring to detect abnormal spikes
User protection by pausing delivery when attacks are detected
Threat Explorer & real-time hunting tools to identify compromised accounts or patterns
Why This Matters for Nigerian Businesses
At Velvot, we’ve seen first hand how even reputable companies are caught off guard by these attacks. Whether you’re in finance, oil & gas, education, or security, email remains a mission-critical channel and a major vulnerability.
If your team uses Microsoft 365, Defender for Office 365 offers the kind of proactive protection modern businesses need.
How Velvot Can Help
Velvot Nigeria Ltd is a certified Microsoft partner. We help organizations:
* Deploy Microsoft Defender for Office 365
* Set up automated policies to prevent and respond to email threats
* Train employees on identifying and reporting suspicious email behaviours
* Monitor your systems in real-time with advanced threat protection dashboards
Ready to Secure Your Inboxes?
Let’s run a free security assessment to see if your mail environment is exposed and how we can strengthen it with Defender for Office 365.
Contact Us @gtm@velvot.com or visit www.velvot.com
Based on insights from Microsoft Tech