Yahoo recently settled with litigants in a class-action lawsuit for multiple data breaches between 2012 and 2016 for $118 million. This settlement is for US and Israel residents.
In Canada, a separate lawsuit is ongoing as far as I can tell. You can still register as a litigant here to receive a portion of the proceeds if you had a Yahoo account (using any of their services) before 2015.
http://www.yahooprivacybreach.com/ (http://www.yahooprivacybreach.com/)
Somewhat ironically, the website isn't using SSL encryption although the submission form on the link is.
Thanks Jason! I have applied to be kept updated with any new info.