https://www.theregister.co.uk/2018/06/13/intel_lazy_fpu_state_security_flaw/

Updated A security flaw within Intel Core and Xeon processors can be potentially exploited to swipe sensitive data from the chips' math processing units.

Malware or malicious logged-in users can attempt to leverage this design blunder to steal the inputs and results of computations performed in private by other software.