Altman needs to sell off that house and move to an anonymized address. I don’t see these attacks letting up any time soon. Two targeted attacks in three days is nuts.
Or he could move to a military base like several prominent administration officials.
Having lived on military bases that is a false sense of security. That's one gate guard away from a problem. They make mistakes. There are far better options he can afford.
How long could a public figure have a hidden address? It doesn't seem practical.
More likely he will have a new contract with some private security firm.
Some poor security guards are going to end up getting gunned down.
I was thinking more like Blackwater, not standard security.
Maybe he can build a moat, and a well fortified structure on the inside, with a little draw bridge to let people in.