Yahoo has recently been in the news again lately due to yet another problem with data breaches. Having a Yahoo account, this Victor crew member has received an email from Yahoo about it.
In this message, they tell me that they are investigating the creation of forged cookies. They say they are taking steps to secure accounts. They say this forged cookie may have been created in 2015 or 2016 and they believe it to be connected to the September 22, 2016 data theft. They also give some actions you can take.
They suggest using a Yahoo Account Key which is something we will investigate ourselves at a later time. This user is on the verge of dismissing this account altogether although it was my first email created back in the 90s. I have added 2-step verification as well as changed the password.
As I logged into the account after the above emails, there was a link to update security settings to block apps with less secure login. I am not sure what this entails yet, but will let you know when I find out.