New phishing attack techniques discovered by Microsoft

As reported by the National Cyber Security Centre last week, Microsoft has identified a phishing campaign that has been evolving via new techniques to avoid detection by email security filters.

The actor has been modifying email attachments by obfuscating them in various ways to prevent email content filters from identifying and flagging them as malicious.

Microsoft's article shows an evolution of sophistication in techniques used in spear phishing. Spear phishing is a targeted form of phishing, where the message is designed to look like it's from a person the recipient knows and/or trusts.