There is nothing wrong with the "news" as you put it. Feel free not to quote me if it's not worthy. It affects custom firmware PS3's on any of the recent SEN enablers, Rogero CFW with the recent spoof, and anybody using F*ckPSN.
People with Official 4.20 seem to still be able to log in without updating. It is also Malware Monday which is malware designed to change your DNS. The protection servers were taken down today and it's possible that it has affected the PSN servers. If so, then it's only a temporary problem.