Invalid or revoked serial numbers
Learn why you might get a message noting that the serial number is invalid or has been revoked, and how to fix this issue.
Adobe revoked CS6 serial number; refuses to rectify even with proof of purchase : r/Adobe
SSL Error 76: The security certificate was revoked When Launching an Application Using NetScaler Gateway
Licensing issues when installing Captivate (2019 release) Update 4
How to install Adobe Photoshop CS6 whose license key has already been used on another computer - Quora
How to Fix “SSL Handshake Failed” & Cloudflare 525 Error
Solved: Re: Screwed by Adobe [CS6 serial number revoked by - Adobe Community - 10541801
GoDaddy SSL Certificate ReKey Error
Check TLS certificate revocation with SSL Labs, crt.sh and OpenSSL
Solved: Serial number revoked when trying to reinstall Cre - Adobe Community - 9759285