How-To Geek on MSN

How to use the MAP function in Microsoft Excel

Row precision vs. Aggregation errors: MAP is the best way to use "greedy" functions like AND or OR in a single, dynamic ...
How-To Geek on MSN

Excel's UNIQUE function can't skip columns—unless you use this trick

Nest CHOOSECOLS inside UNIQUE to extract non-adjacent columns, and use INDIRECT for interactive header dropdowns.

A single click mounted a covert, multistage attack against Copilot

Microsoft has fixed a vulnerability in its Copilot AI assistant that allowed hackers to pluck a host of sensitive user data ...

One click is all it takes: How ‘Reprompt’ turned Microsoft Copilot into a data exfiltration tool

A new one-click attack flow discovered by Varonis Threat Labs researchers underscores this fact. ‘Reprompt,’ as they’ve ...
CNET

You Can Still Get Free Security Updates For Your Windows 10 PC

Jason Chun is a CNET writer covering a range of topics in tech, home, wellness, finance and streaming services. He is passionate about language and technology, and has been an avid writer/reader of ...