Beyond rigging batteries with a SEMTEX shell, the key vulnerability is a BMS (battery protection controller) that can be signaled to overheat/damage the battery and intentionally cause a fire.
With Israel supremacy firmly self justified on religious grounds, their solid control over US politics and deep state appointments, any obstacle to their genocidal solutions for supremacy is a target. US politicians (Trump specifically) congratulating Israel/Netanyahu on the brilliance of the tactic, means not just supporting assassinations of obstacles to Israel supremacy, but to Trump's supremacy, through strong arming industry partners to include the capability. One of the current AI powers is easily identifying the phones of those who are less enthusiastic of policies.
One way to make sure that all Americans are vulnerable to such an attack is "all accusations are confessions" a ban on Chinese phones accusing them of having the back door.
Disempowering the US empire is key to world not descending into murderous war, and embracing such weapons against humanity.