KKR, a US private equity firm, has formally requested that Fuji Soft take legal action against Bain Capital, alleging a breach of a non-disclosure agreement amid an ongoing bidding war for the software maker. KKR's request comes as part of a $4 billion acquisition battle, where both firms are vying for control of Fuji Soft. KKR's call for legal action was communicated in a letter sent to Fuji Soft's board on January 6, 2025. The situation highlights the intensifying competition between KKR and Bain in the technology sector.