Sony PS3 grabs content IDs when connected to Vita
Apparently when you connect your PlayStation Vita to your PS3, the PS3 will automatically locate and store all the content IDs from your PlayStation Network account. This, surmises the hacker who made this discovery, means that it’s possible for Sony to invalidate content on your systems regardless of where you acquired it.
According to the hacker, who goes by the handle Hellcat, when users transfer between the two systems using Content Manager and choose to transfer “Applications (PSP/Other) downloaded to the PS3 system” to a Vita, the device will download a list from the PSN servers and do a quick check against an apparent “blocked app” list. If it happens to find a match, then any offending apps can be invalidated.