with what crono said is very true. i can only confirm this because i know of one person in my area that is into that.
seems like you didn't read that link fully or even explored it completely so allow me to copy paste for your pleasure.
Edit #2: Mathieulh just mentioned that he has been in contact with someone that has official access to the SCE devnet servers and it was posted to them today that only 3.60+ debug firmwares will be allowed on the dev network anymore. All earlier versions will be cut. If you want to retain your access you need to contact Sony and upgrade to 3.60 debug firmware.
Edit #3: Ok, it looks like some various news sites have picked up this story and taken it out of context. Once again, this is all speculation and information gathered from various devs in the PS3 scene. It might very well not be the real reason PSN is down, but as the timeline fits, it's a reasonable explanation. Now, as to Rebug directly allowing this to happen, that's not the case at all. Different CFW's have had access to the dev network the whole time. This is not new news for people in the PS3 scene. It's what people have figured out what to do with the said network that has caused all the recent issues. Saying that Rebug is what did this is like saying a gun manufacturer is responsible for every death that happens with a gun.
Edit #4: Looks like Sony is finally admitting that people have been able to get into their network and users personal info has possibly be compromised. See: Official Sony Blog for the latest update.
Edit #5: Last edit folks. The whole story is unfolding over at PSX-Scene Looks like the data was unencrypted, and hackers are currently taking the highest bidder for the data (2.2mil CC#'s w/ first name, last name, address, etc) after trying to sell it back to Sony.http://psx-scene.com/forums/cmps_index.php
<the whole thing so far
there is no mention to geohot
at all upon deeper reading you WILL find out that the major security flaw was on sony's side.
before the whole geohot in court thing took off there was talks about the issue and sony was just dumb to not listen.
if you still dont see it irc log right herehttp://psx-scene.com/forums/attachments ... irclog.txt
another thing to gab on and on about.
the PSP have you played it lately?
cuz i have and with the latest firmware update too.http://wololo.net/talk/viewtopic.php?f=2&t=1879