These crashes are mainly related to memory corruption in Windows*. In the Microsoft* Communities, there is a post that might be related to the same issue you are experiencing. Please click in this link: BSOD Kernel Security Check Failure on Windows 8.1 - Microsoft Community - *NOTE: This link is being offered for your convenience and should not be viewed as an endorsement by Intel of the content, products, or services offered there.
As for your Intel® Dual Band Wireless-AC 3160, please make sure you have the latest drivers and also check for possible BIOS updates. If this card came already installed when you bought your computer, it is highly recommended that your contact your computer manufacturer to get the latest updates first.
*If you installed this card after you bought your computer, you can check the latest drivers from our download center taking into consideration your OS. Please access the link this link: Intel® Download Center for the latest drivers.
*Important to know: Intel does not support integration as all wireless hardware are meant to be professionally installed by the OEM (Original Equipment Manufactures) technicians. Only your system manufacturer is entitled to provide you a list of validated and certified adapters that are compatible with your system. So, for more information you may need to contact them directly. Please access the links below for further information.
Aleki, intermediate knowledge of WinDbg/Driver Verifier plus seeing Netwbw02.sys on the call stack gave me the false illusion of having found a "smoking gun". After your answer I realized the fault was actually happening everywere, not only on ndis/wi-fi. It was indeed a memory corruption caused by a faulty memory bank, detected by memtest86[*] in few minutes. After having removed it, the system is now stable again while streaming the offending video (ugly video, but for some reasons it had a failure rate of 90%). Thanks for the help.