What has changed is that covert political assassinations by the secret services of nation states is no longer a viable strategy the way it was when JFK and RFK were killed.
Not even the Mossad is good enough to pull it off these days, and they're probably the best in the world: https://en.wikipedia.org/wiki/Assassination_of_Mahmoud_Al-Ma...
Soo.. an intelligence firm that needs to be advertized or spoken of.. is a little strange.
As catch rates go up, the more unhinged your assassin needs to be, so why not take a step back and influence the 'unhinged' single adult male, via the internet and never even raise an eyebrow?
The atmosphere of ambiguity around the world, is thick and dense lately...
I'm sure the secret services have come up with creative things. The Russians sometimes use poison when abroad, but even that is usually discovered now due to sophisticated hospitals.
The old tricks of discrediting, bribing, and blackmailing are probably still just as effective as ever. Maybe more so.
It's not some grand conspiracy, just some guy with a gun.
I can imagine pulling off JFK 2.0... but I don't want to.
Surveillance cements consequences.
If it was Israel, then who cares? Are we doing diplomacy by assassination now? The reality of politically motivated, err, unpleasantness, has existed forever.
Let's not forget the 20yr war that happened straight after 9/11. Less killing the better, and a death in cabinet doesn't always get the change 'the powerful group' may want.
I'd be more worried about getting on a submarine with a console controller now.