Some of your activity triggered the ‘suspicious activity’ flag on your account temporarily, or else your account is brand new. This scrambled-letter ‘captcha’ code requirement will diapppear after a while.
One thing that helps is to clear the cache and update Flash and Java. You can clear the cache of most browsers quickly by clicking Ctrl + Shift + Delete at the same time. Check that Flash and Java are updated by visiting their sites for the latest version:http://get.adobe.com/flashplayer/ http://java.com/en/download/index.jsp
There are several activities which could cause this message. The most common reason for this message is attempting to send to too many addresses at once. Yahoo’s limits are 100 addresses in total, with only 50 per domain such as @yahoo.com, but Yahoo recommends sending to far fewer than that number at once. There is also a limit on the number of mails sent per hour (200 addresses) and per day (unknown number). Frequently the ‘suspicious activity’ warning occurs for far fewer addresses.
Just in case your password has been cracked and your address is being used to send spam without your knowing …
FIRST, check that the alternate e-mail address/mobile phone number is still yours, under Options, Mail Options, Account Information, but then change it! (so the hacker will not be notified of the change). Check the ‘Reply To:’ address as well.
Then change both your password AND your secret questions and answers. Make the password a long, strong one with mixed characters! Length = Strength for passwords! Start with a sentence and make substitutions with numbers, symbols and punctuation. Go to “Update password-reset info” to change your Secret Questions and Answers. Make sure they are unchangeable, unique, and easy for you to remember.
For a Yahoo account, you can change your password at https://edit.yahoo.com/config/change_pw. If you can no longer access your account, you can get a new password at https://edit.yahoo.com/forgotroot/.
Answers is a Jungle