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Greasy Opal's CAPTCHA solver still serving cybercrime after 16 years
(www.bleepingcomputer.com)
This is a most excellent place for technology news and articles.
A whitelist filtered firewall never gets CAPTCHAs. The only ones I ever see are if they are self hosted on the server of an approved address, and that is like one every few years. The majority of those that you see are not related to the websites you visit. In most instances it is related to 3rd party junk, probably ads' PII.