That is why you want Forward Secrecy in your cipher suite. If the key for one session is corrupted, past sessions can't be reconstructed, since with Forward Secrecy the keys are negotiated every single session.
The Nexus uses Forward Secrecy and the Schannel library, not the OpenSSL library. Which may be beneficial, maybe not. OpenSSL is open, Schannel is closed.
The question is: has Schannel a back-door, too? Or are the random number generators in Windows compromised, so reconstruction is easy with huge data centers? Nobody can tell, as the source code isn't open.
Which leads to the ultimate question: has the NSA forced Microsoft to corrupt their random number generators or their cipher library? And sign a non-disclose agreement because of "national security" by "court" order?
The NSA _did_ corrupt RSA, which core business is data security:
http://www.reuters.com/a...sa-idUSBREA2U0TY20140331TL;DR: be careful with your online activity, current events prove that computer security is under attack daily.