Amazon Web Services (AWS) has filed a complaint in the US Court of Federal Claims over approval for its cloud computing contract with the Central Intelligence Agency (CIA).
AWS secured the four-year contract worth about $600m from CIA to build a private cloud for its intelligence community.
In its complaint, Amazon challenged the scope of action taken by the CIA following protest by IBM on the contract and recommendations made by the Government Accountability Office (GAO).
An Amazon spokeswoman said in a statement: "We believe strongly that the CIA got it right the first time. Providing true cloud computing services to the intelligence community requires a transformative approach with superior technology.