How to Disconnect / Remove PSN Account from PS VITA - Error NP-2100-3 - YouTube
Is it safe to sign into PlayStation Network when my Vita is jailbroken? I started getting this message after a while of not playing my Vita. : r/VitaPiracy
PS Vita 1.80 Update Locks Memory Cards to Single Account | WIRED
PS Vita changes: How we'd save the Sony PS Vita
PS Vita News | Push Square
PlayStation Vita and PS3 system update adds new security measures | Eurogamer.net
PS3 and Vita New Updates Disable PSN Account Management - Siliconera
Get PS Vita Questions Answered - PS Vita Guide - IGN
PlayStation Vita Offers a Perpetual Game, Inside or Out - The New York Times
PS Vita: The end of Sony handheld gaming? - BBC News