Sony's recent financials highlighted the poor performance of PS Vita and overall losses of 15.5 billion yen/$198 million. Today credit firm Fitch has cut the Japanese company's credit rating due to its "loss of technology leadership in key products and the strong yen", and issued a warning that aggressive restructuring would be needed to reverse its fortune. Get the report below. The Financial Times reports from Tokyo that credit rating agency Fitch has slashed Sony's credit rating down by three notches from 'BBB-' to 'BB-', citing the company's lack of influence over the technology market, lack of strong products, the strong Yen, and fierce competition posed by Apple and Samsung. Reuters suggests that the move came after Sony announced the sale of convertible bonds to raise 150 billion yen ($1.82 billion) to help fund its acquisition of cloud gaming service GaiKai.