The WebSphere Support team has released two Flash technotes:
1) The personal certificate called "WebSphere Plugin Key" within the plugin-key.kdb that is shipped with the WebSphere Plugin install, expired on April 26, 2012.
2) The password to the GA installed plugin-key.kdb expired on April 26, 2012 US EDT
The WebSphere Plugin comes with a plugin-key.kdb file upon installation, and contains a personal certificate that expired on April 26, 2012. The keyfile itself also has a password "WebAS" that expired on April 26, 2012. Action may be required to maintain encryption between the plugin and application server(s). This affects WebSphere Application Server V6.1, 7.0 and 8.0.
Refer to the Flash technotes from the WebSphere Application Server support team to determine if you are affected and what steps may be needed to correct this situation (direct links):
|Organizational Productivity- Portals & Collaboration||Lotus Quickr for WebSphere Portal||AIX, HP-UX, Linux, Windows||8.5||All Editions|