Bogus Captcha are being found on random web sites and in phishing emails, so be careful.

They tell you to press Win+R and then Ctrl+V.  That allows it to paste in a Windows PowerShell script which installs the Lumma Stealer malware on your PC.

Lumma lets attackers steal data from web browsers and applications running in Win 7-11, including passwords, cookies, credit card info, and crypto wallet info.

If you get a Captcha asking you to do anything other than enter a random string of characters or to choose pictures matching a topic, close the browser page without doing anything else.