bug#31709: 27.0.50; Wishlist: Perhaps Emacs should load a file when getting a particular signal?

[Phil Sainty]

On 2018-06-06 02:38, Eli Zaretskii wrote:
> Having a fixed file name in Emacs that is loaded by an external signal
> would be a terrible security risk, no?

Bad Things could surely be done; but if the attacker has access to
send signals to the user's emacs process or write files in the user's
~/.emacs.d directory, has a terrible security breach not already
occurred?  The notion of an attacker gaining access to a running Emacs
session is certainly bad, but I'm unsure whether the proposed idea
really worsens the risk in principle?

-Phil