Mom opened my official transcript— making it unofficial

I've been telling my mom for months to not open my mail. She insists she's just "checking to make sure it's not junk mail" and that she's "not looking through it". I ordered an official transcript from my college and lo and behold, the seal was broken, making it unofficial. Suffice to say, I'm pretty pissed. My boyfriend and I are long distance and I had to tell him not to send me letters since my mom is gonna open anything addressed to me.