Kernel Unsigned Landing PPA

[José Humberto]

Hello

My name is Jose and I want to know why all kernels since 4.14.35 are 
unsigned.
That can be a problem about security?
Because we haven't a signed kernel at PPA since 2 months ago and I'm 
worried about the problems that this can be for who uses the kernel from 
the official PPA. Problems like modules unsigned or something on UEFI.

Thanks so much

Jose