Yahoo Inc. is facing a potential class-action lawsuit in Canada following security breaches, the most-recent of which was revealed last week, involving more than one billion user accounts. A notice of claim filed Dec. 16 with Ontario Superior Court names both the American parent company and its Canadian subsidiary in the action looking to represent “all persons residing in Canada whose Yahoo account information was stolen in the 2013 Breach, the 2014 Breach and/or through the use of forged cookies in 2015 and/or 2016,” via the plaintiff, a Barrie, Ont.-resident...