PS4 open software licences (FreeBSD confirmed) | NeoGAF
ZiL0G80 Hints on PS4 IDU Mode / E3Mode, FreeBSD Exploits Phrack'd | PSXHAX - PSXHACKS
PlayStation 4 User Interface - PlayStation 4 Wiki Guide - IGN
PS4 Jailbreak Update: PlayStation 4 Exploit Claimed by CTurt – PS4 Jailbreak Release Date 2016
Hector Martin on Twitter: "@msugioarto The PS3 kernel is as much "based" on FreeBSD as macOS is. The PS4 kernel *is* a patched FreeBSD." / Twitter
New FreeBSD Kernel Exploit Discovered by PS4 Developer CTurt | Page 4 | PSXHAX - PSXHACKS
Solved - FreeBSD Install on a Lenovo ThinkCentre M81 | The FreeBSD Forums
Sony Addresses PS4 RAM Report - Game Informer
Which OS does PS4 use? - Quora
PlayStation 4 News: TheFlow reports that a dongle jailbreak could not be made with a recent
Hacking the PS4, part 1
PS4: FreeBSD 9 Under The Covers. Why This Matters. - General Discussion
TheFloW strikes again: PS5 confirmed vulnerable to Kernel exploit in "new" disclosure (IPV6 Socket UAF) - Wololo.net
NMAP PS4 Research Port TCP / UDP and CVE (FreeBSD) for Devs | PSXHAX - PSXHACKS
Sony's upcoming Play Station 4 (PS4) is said to be running FreeBSD 9 underneath
PS5 Firmware 5.02 & PS4 Firmware 9.51 released, in context of FreeBSD heap buffer overflow vulnerability. Do not update - Wololo.net
Details about Playstation 4 OS development
Details about Playstation 4 OS development
PlayStation 4 system software - Wikipedia
PS4 Update 9.51 Released, PS4 9.50 Jailbreak Soon?? | PS4 Jailbreak News - YouTube
