Enabling JavaScript should make Excel more powerful, but increasing access points makes it even more of a web security nightmare than it already is.

Shortly after Microsoft announced support for custom JavaScript functions in Excel, someone demonstrated what could possibly go wrong if this feature is abused for malicious purposes. As promised last ...

Within days of Microsoft announcing that they are introducing custom JavaScript equations in Excel, a security researcher has developed a way to use this method to load the CoinHive in-browser ...

Right now, JavaScript in Excel custom functions is only supported in the Developer Preview edition to Office 365 subscribers enrolled in the Office Insiders program. But it seems inevitable that in ...