Anonymous is threatening to bring down the UK judiciary and the Metropolitan police's computer systems today. Apparently this is in response to News International's phone hacking scandal and at the extradition proceedings against WikiLeaks founder Julian Assange.
A Twitter feed purporting to belong to Sabu, a senior figure within the group and the founder of the spin-off group LulzSec, which hacked a site linked to the CIA and the UK's Serious Organised Crime Agency, promised two releases of information would be launched within a day. A follow-up message read: "ATTN Intelligence community: Your contractors have failed you. Tomorrow is the beginning."
Chat channels has suggested several top-level members of Anonymous are eager to launch attacks based around Julian Assange's appeal hearing against extradition, which begins today. There are rumours that an Anonymous member had broken into the News International servers and taken copies of some internal emails which were being offered for sale.