question about harry's defence in privet drive
After book 4 with voldy poo come back to life using harry's blood he got his mother defence also (and the blood connection)
so why malfoy with his connection to umbridge couldnt found out harry's hideout I'm sure she would have told him specially at the time of the "dementor accident".
he would have told voldy and than with his new blood connection
he could throw away privte drive defence easily(blood shield)
why didnt he done it?
am I mistaken here with my assuming???
p.s: If i'm making fool of myself here please excuse me 😉