Why does Bitdefender’s SSL scanning appear to break secure sites & software?

Mike Moynihan January 3, 2015
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My Microsoft Outlook e-mail stopped working on New Year’s Eve. It looks to be an incompatibility between BitDefender and Outlook experienced by a numer of people at the same time. On another forum I found that the problem can be circumvented by switching off scan SSL on the Privacy Control setting but am not sure why this needs to be done or what other problems might arise from changing the setting. Advice please?

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  1. Will
    January 5, 2015 at 8:32 am

    I had the exact same problem - as of 31st December 2014 (Australian time) I could no longer access outlook.com - not from any browser, with the message "This page can't be displayed"
    Only when I turned off my BitDefender's "Scan SSL" option can I now access the outlook.com site again.

  2. ha14
    January 3, 2015 at 12:27 pm

    Outlook e-mail stopped working is there any error message?

    What to do when Security Certificates cannot be verified/installed
    http://www.bitdefender.com/support/what-to-do-when-security-certificates-cannot-be-verified-installed-1090.html

    Outlook 2013 Being Blocked By Firewall, I'm aware it's not supported, just after any tips and tweaks
    http://forum.bitdefender.com/index.php?showtopic=50263

  3. Bruce E
    January 3, 2015 at 11:24 am

    Bitdefender scans secure connections (HTTPS and TLS/SSL-enabled email) by injecting their own certificate locally on your system that uses a weaker algorithm in order to improve scanning performance. Web browsers such as Chrome complain about this and it appears that MS Outlook is doing the same. I'd love to be able to do a test to see if Thunderbird chokes on it as well.

    It is my opinion that this option should be disabled.

    More information can be found here: http://forum.bitdefender.com/index.php?showtopic=48668&st=0&p=209791&#entry209791