BusinessNation & World Yahoo warns users of potential malicious activity on their accounts between 2015 and 2016 Originally published February 15, 2017 at 10:18 am Share story By The Associated Press The Associated Press LONDON (AP) — Yahoo warns users of potential malicious activity on their accounts between 2015 and 2016. The Associated Press View Comments No personal attacks or insults, no hate speech, no profanity. Please keep the conversation civil and help us moderate this thread by reporting any abuse. See our Commenting FAQ. Powered by Livefyre The opinions expressed in reader comments are those of the author only, and do not reflect the opinions of The Seattle Times.