WASHINGTON, D.C. – U.S. Senator Maria Cantwell (D-Wash.), Ranking Member of the Senate Committee on Commerce, Science and Transportation, is pursuing key security reports from the digital forensics expert Mandiant, hired by both AT&T and Verizon to conduct comprehensive network security assessments of last year’s “Salt Typhoon” hack. Although the telecommunications companies claim Mandiant’s analyses verify their public assertions that the threat has been contained and their networks are secure, AT&T and Verizon have refused to make them available to the Committee.