Yahoo Security Notice
Below you'll find a link to the text of the email (in your region) sent to Yahoo users potentially affected by a security issue.
The email from Yahoo about this issue does not ask you to click on any links or contain attachments and does not request your personal information. If an email you receive about this issue prompts you to click on a link, download an attachment, or asks you for information, the email was not sent by Yahoo and may be an attempt to steal your personal information. Avoid clicking on links or downloading attachments from such suspicious emails.
Please note that you'll receive a prompt in the desktop version of Yahoo Mail explaing that "Your account may have been affected by a security issue." This is a legitimate message from Yahoo and the link will bring you to the security issue FAQ page.