Could be indeed... I know they keep changing the passes to the Press sites that have them so perhaps Sony is finally catching on.
Examples of some old ones are below:
Press / HGfsds58
Linden / JBgvIz
The irony is we actually contacted Sony directly a few years ago, told them we are a game news site and so on and they gave us the Press information below which still works to this day... although they no longer keep Debug updates there last I checked.
SCEA / SC3APR