It’s come to light that the hackers responsible for infiltrating Sony’s PSN infrastructure took extra steps to cover their tracks — using Amazon’s EC2 service as a proxy to conduct their malicious deeds. While the hackers did not break into Amazon’s network, they did sign-up using fake details, which has prompted an investigation from the FBI’s cyber crime unit.

As part of its ongoing investigation, sources say the FBI will likely serve a subpoena to Amazon to gain access to usage history for the services used,  in addition to payment details — as Amazon’s EC2 services require a valid credit card.

The PSN still remains out of commission, 3 weeks and counting, despite Sony stating that it was hopeful the service would return in a “few days” last Tuesday.

Amazon Server Said to Be Used in Sony Attack [Bloomberg]

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Read more: PSN Expands To Amazon,  PSN Blackout: Sony Has Yet To Determine If Credit Card Information Was Stolen,  Sony Expects To Restore ‘Some’ PSN Services Within A Week, Personal Information Likely Compromised, Including Passwords,  Sony To Restore PSN Access This Week, Will Reward Users With Free Content And PS Plus Subscription,  Sony Turned Off PSN Services To Investigate ‘External Intrusion’