Microsoft will soon begin disabling Excel 4.0 XLM macros by default in Microsoft 365 tenants to protect customers from malicious documents. Excel 4.0 macros, or XLM macros, were first added to Excel ...

XLS files sent via emails appear password protected but aren’t, opening automatically to install malware from compromised macros, according to researchers. Hackers have updated the age-old Excel ...

Researchers discover progressively complex and effective XL4 attacks that take advantage of the many organizations that still rely on the old functionality. Excel 4.0 macros have been around for ...

Avaddon ransomware has been spreading this week via an old technique that's making a comeback, Microsoft cautions on Thursday. The attacks appear to be more targeted and rely on malicious Excel 4.0 ...

Excel is still a security headache after 30 years because of this one feature Your email has been sent Threat researcher explains why it's tricky to tell the difference between legitimate Excel Macros ...