SCMagazine reported on phishing campaign involving Microsoft domain.
An email security company says its researchers observed a spear phishing campaign that exactly spoofed a Microsoft email domain to trick Office 365 users. This suggests Microsoft’s servers were not enforcing protective DMARC authentication protocols when communications were received and perhaps still are not.
The campaign, according to a blog post published by the company Ironscales, uses a lure that suggests the recipient has important email messages that have been quarantined, and must click a link to salvage them. The phishing email reportedly alludes to a hosted email security feature that Microsoft introduced last September as a way to salvage emails that are wrongly labeled as spam, or phishes by the company’s Exchange Online Protection filtering service.