I am aware of this. Plus there are constant power attacks when one disconnects the disk while the system is suspended when the key is unlocked on the disk. But

I am aware of this. Plus there are constant power attacks when one disconnects the disk while the system is suspended when the key is unlocked on the disk. But this is a development machine and I figured out that surprisingly non-trivial overhead of LUKS encryption in Linux is not worth it. On the plus side wake up from hibernation is very fast and to mitigate the risk of the above I configured the laptop to hibernate shortly after suspend.