LastPass OpenSSL CCS checker


Kikuchi's logo for the MITM bug


This issue has been largely solved, this tool has been deprecated.

News broke on Thursday, June 5th 2014 about a new man-in-the-middle CCS injection vulnerability in the OpenSSL cryptographic library, which is used by roughly two-thirds of all websites on the Internet. Use our tool to check your frequently used websites and determine if they have been affected by the bug.

Check a site:
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Need some inspiration?
Try: www.Yahoo.com
Try: CraigsList.org
Try: Adobe.com
Try: LastPass.com

Check the sites that you've entrusted with your information. If you have any doubt, please use LastPass to update passwords on potentially impacted sites. Get started with LastPass now.


Has your organization made a public statement about use of vulnerable versions of OpenSSL and the impact that the CCS exploit has on your customers? Or if you updated your SSL libraries and we are still incorrectly reporting your site as vulnerable: Let us know