Microsoft Defender email security benchmarking: Key insights from one year of data

Microsoft publishes quarterly email security benchmarking data comparing Microsoft Defender against secure email gateway SEG and integrated cloud email security ICES vendors using real-world threat telemetry. A year ago, we set out to change how email security effectiveness is measured. With our...

From transparency to action: What the latest Microsoft email security benchmark reveals

In our last benchmarking post, Clarity in complexity: New insights for transparent email security ,1 we shared why transparency matters more than ever in email security and how clear, consistent benchmarking helps security teams cut through noise and make confident decisions. Today, we’re...

Clarity in complexity: New insights for transparent email security

As email threats grow more sophisticated and layered security architectures become more common, organizations need clear, data-driven insights to evaluate how their security solutions perform together. Benchmarking plays a critical role in helping security leaders understand not just individual...

HSC Cybersecurity HC Mailinspector 安全漏洞

HSC Cybersecurity HC Mailinspector is a cloud email security solution from HSC Cybersecurity. A security vulnerability exists in HSC Cybersecurity HC Mailinspector versions 5.2.17-3 through 5.2.18, which stems from a vulnerability that allows a regular user account to escalate its privileges and...

Hackers Steal Mimecast Certificate Used to Securely Connect with Microsoft 365

Mimecast said on Tuesday that "a sophisticated threat actor" had compromised a digital certificate it provided to certain customers to securely connect its products to Microsoft 365 M365 Exchange. The discovery was made after the breach was notified by Microsoft, the London-based company said in ...

Cisco Email Security Appliance Denial of Service Vulnerability

The Cisco Email Security Appliance ESA is an email security appliance from Cisco USA. A denial of service vulnerability exists in the email message scanning feature in Cisco ESA and Cisco Cloud Email Security versions prior to 12.5.1-037 and prior to 13.0.0-375, which stems from a faulty parsing...