Over the last year, Office 365 security has been tracking an emergent attacker persistence mechanism...

Problem Overview Office 365 Security has been tracking an emergent threat to customer data in the...

In Office 365, servers are continuously provisioned and destroyed as the service is upgraded and...

As security threats evolve, so must defense. In Office 365, we have engineering teams dedicated to...

Client created rules, that Auto-Forward email from users mailboxes to an external email address, are...

In our last post, we discussed how Event Tracing for Windows (ETW) provides a wealth of knowledge in...

In the DNS Intrusion Detection in Office 365 post we introduced strategies implemented in Office 365...

In Office 365, we are committed to protecting our customer's data. We implement and exercise...

Today’s defenders face an increasing obstacle with information asymmetry. With the advent of...

In Office 365, we are continually improving the detection and response systems that safeguard your...