Looks like it is.
http://www.leginfo.ca.gov/cgi-bin/displaycode?section=lab&gr...
This article is specifically addressing social media accounts. Trying to lump your 'gamer tag' under that section is pretty sleazy.
Uh, if I play a game ("electronic service or account") and send someone else a message in chat ("instant and text message") then I'm pretty damn sure that is covered under that legislation. However, IANAL.
> under that section is pretty sleazy.
I guess "being sleazy" means you don't care about data privacy then huh?