In case if Yahoo verification code gets hacked then, you will need to-
· Sign in to your Yahoo mail account
· Now, click on the user icon that appears in the upper-right corner and then, click on Settings
· After that, click on Account Security and click on the Toggle option that appears beside Two-Step verification to enable it
· Enter the Mobile number and click on Send SMS or Call me to get the verification code
These are the way through which one can rectify the Yahoo mail verification code issue. And in case, if there is any issue that persists with it then, contact the yahoo mail helpline number uk for instant assistance.