Don’t think that there was ever a security hole. I wouldnt consider installing alt firmware to be a security hole

Per the patch notes: https://www.playstation.com/en-gb/support/hardware/ps3/system-software/

"By updating, you can enjoy additional features, improved usability, and enhanced security.

Please note, to play Blu-ray discs, your PS3 system needs a renewed Blu-ray player encryption key. Please update your PS3 system software to the latest version to renew the Blu-ray player encryption key."

I havent actually tried to watch a bluray on custom firmware since, but I’m a weirdo who uses it for playing games so that doesnt matter to me.

I dont see any money being made on the ps3