Fortifications at Hogwarts

[Jen Reese]

No: HPFGUIDX 101771

The movie scene where all the gates and massive locks come down 
throughout Hogwarts has me wondering how Hogwarts is protected, 
besides enchantments and spells. When reading POA I kept 
thinking, 'what, so DD sends 12 teachers out to search this massive 
castle and that's that?'

We're told Voldemort stayed away from Hogwarts during the First War 
because Dumbledore was there, but maybe it was also too hard to get 
into as well.  Then again, Sirius enters with ease. I guess that 
means Pettigrew did *not* divulge the secret of the tunnels in the 
First War, although surely Voldemort knows about them now.

Gringotts, for instance, is protected by spells and enchantments, 
but has the additional protection of being underground and maze-like 
so people attempting to steal anything may die before finding the 
exit. It also possibly has dragons in the high-security area. 

Just curious about this, as it seems certain both Hogwarts and 
Privet Dr. will be attacked at some point. I know this isn't a new 
topic, but I wondered if the gates/locks in the movie were one of 
the 'clues' JKR had goosebumps about.

Jen