Maximum amount of digits I’ve ever seen for a cellular VM system is 11 (among the big public companies). I believe Sprint can handle up to 7, and Verizon allows up to 10. Of course these are digits with no more than 10 combinations for each slot instead of the 70+ alphanumeric offers.
I saw this live at defcon and it was honestly my favorite talk of the whole con. VMB hacking was somewhat oldschool even in the nineties yet it’s even more powerful today.<p>If you get a chance, grab his talk from the defcon media server - well worth it.
What is this for? I feel like my voicemail box has nothing of value in it.<p>For things that require 2FA they will call or SMS but do they really leave a message if they call and you don't pick up?