Hermione told me she's also notified you about the threat against her, not to mention all the other bullshit going on that as usual, the Ministry seems to be incapable of putting a stop to...
You'll have received the memo putting the Company on a terrorist threat alert. This is my official confirmation to you that you and your section are authorized the use of deadly force in the even of an attack on any of our people or places under our control. Prisoners to question if possible, but take absolutely no risks. If necessary, there are ways to dispose of the occasional awkward body. You are authorized any overtime or other expense you think necessary to protect our people. Whatever it takes to protect a life, no matter what it costs, no questions asked. We'll keep the lawyers on permanent call until this is finished.
By the way, I consider Hermione to be one of 'our people'. She will probably refuse extra protection, so tell her she's bait now, and keep a 24-hr. watch on her. Again, no risks with people's lives. Notify and take under protection anyone else as you think appropriate.
Let me know if I can do anything to help. If nothing else, I've stayed in training.