When Yahoo Publisher Network publishers try going to the YPN Portal, they are now presented with a security prompt. If you look closely at that error, it says that their secure certificate has expired.
It expired a day ago. I guess Yahoo is trying to cut costs wherever they can, including security. Of course I am kidding. Often companies forget to renew their security certificates. I am sure it will be resolved shortly and I am sure the site is still secure, it just doesn't have the Equifax seal of approval.
Forum discussion at WebmasterWorld.


Comments:
Lincoln
07/07/2009 12:04 pm
This problem is not solved yet, so Yahoo does't want to spend money into security.
John
11/05/2009 01:16 pm
cannot get into my email with out going around the yahoo security certs,, How do I fix this
Duncan Bernard Jr
03/10/2010 04:24 am
I can't access my e-mail,what can I do to fix this.
Rudy Moreno
03/13/2010 02:00 am
Cannot access my yahoo mail because the Security Certificate is invalid
Laurie
03/27/2010 06:39 pm
I cannot view my email, because of the security certificate is expired in Yahoo. How do I fix this problem?
taha
11/02/2010 07:59 am
I cannot view my email, because of the security certificate is expired in Yahoo. How do I fix this problem?
Cellardweller0731
04/20/2011 01:19 pm
It's carzy. A lot of people are having this problem again with Yahoo Mail. Every year it happens and it's the smae thing for 2 weeks. That's why I no longer use Yahoo for anything. Those SSL Certificates are extremely important because they assure you that your information is encrypted and some what secure so I would not and do not use Yahoo any longer.
Mr. Upper Darby
04/20/2011 01:21 pm
Funny when this page opened I had the same problem here too. Amazing how bad Yahoo is getting these days. I no longer use their services either.
Scylla04
07/20/2011 12:03 am
Every second visit to the sign in page in any browser on my computer shows "site certificate" can't be identified, because it's trying to go to login.yahoo.net In Chrome the error message is This webpage is not available The webpage at https://login.yahoo.net/login_superads/us/superads_iframe_content.html?es=ddoT7A751u8Zh8QM24Y-&b=aksemkl6vnmnq%26b%3D4%26d%3DOrpOSdlpYFQEZBKKlksbKX2p_R05KgME4niL%26s%3Df7%26i%3DJJ0n.Ww1k4O9x_r5d0Wg might be temporarily down or it may have moved permanently to a new web address.Error 501 (net::ERR_INSECURE_RESPONSE): Unknown error.I've tried using their suggested solution to get the a valid logon page, but it seems not to be working any more I am not impressed!
Titus2fam
07/29/2011 11:53 am
Does that mean it's NOT a valid login page? Or a safe login page?
Jhayye
08/07/2011 06:11 am
How do I get a new certificate ?