WSJ Buy Side is The Wall Street Journal’s research and commerce team. Our commerce content is distinct from our newsroom coverage. We earn a commission from some links in our articles. Learn more. Oct ...

Tax Day is quickly approaching, but if you need more time to complete your return, you can request a tax extension. An extension typically gives you six additional months to gather your forms and ...

Somewhere, an ancient file system is still quietly bossing around your PC.

Microsoft hides file extensions in Windows by default even though it's a security risk that is commonly abused by phishing emails and malware distributors to trick people into opening malicious files.