PlayStation 4 News: TheFlow advises to stay on FW 6.20 or below if you want to hack your console - kxploit currently in the works! - Wololo.net
PS4 Jailbreak Guide - 6.72 Exploit - CFWaifu
PlayStation 4 firmware 7.02 kernel exploit surfaces; jailbreak back on the cards - NotebookCheck.net News
PS4 - PS4 6.20 kernel Exploit Coming Soon ? TheFlow says " don't update past 6.20 if you want a kxploit" | PSX-Place
EdiTzZ™ on Twitter: "Added PS4 WebKit Exploit PoC for 6.XX by @C0rpVultra https://t.co/X6jw3Q5yGE Note: This is only a WebKit Exploit no Kernel Exploit!" / Twitter
PS4: 6.20 piracy "method" has been released (and the scene is disappointed) - Wololo.net