(September 8, 2017, 1:14 PM EDT) -- PORTLAND, Ore. — The same day that Equifax Inc. announced a data breach affecting potentially 143 million U.S. customers, a class complaint was filed against the firm in Oregon federal court on Sept. 7, alleging negligence for Equifax’s failure to protect customers’ personally identifiable information (PII) (Mary McHill, et al. v. Equifax Inc., No. 3:17-cv-01405, D. Ore.)....