If you visit
you will see any Domino’s pizza orders for the given phone number (in
10-digit format). No password is required.
Potential evil use: run a script to test 1000s of numbers until you
find someone who is ordering a pizza (“war pizza ordering”?). Call
them up, tell them there’s a problem with their credit card,
and… well, let your mind go crazy.
Of course, Subway is even worse about this!: