Yahoo issues new security warning to users

LONDON (AP) — Yahoo is warning users of potentially malicious activity on their accounts between 2015 and 2016. It’s the latest development in the internet company’s investigation of a mega-breach that exposed 1 billion users’ data several years ago.
It’s not clear how many users were affected by the malicious activity, which involved the use of forged cookies — strings of data which can be used to allow people to access online accounts without re-entering the