Origin Accounts Hijacked?

Eurogamer reports that account holders on EA's Origin service are receiving emails confirming they have successfully changed passwords and/or email accounts, in spite have not making any such request. They say this has affected one of their own, Digital Foundry's Richard Leadbetter, and point to a thread on NeoGAF with similar stories. They also show an indication this may be originating from somewhere in Russia, and say they have contacted EA for a response.