Feature Phone Hack Can Block Calls, Texts On Some Networks

Trailrunner7 writes, quoting Threat Post "By tweaking the firmware on certain kinds of phones, a hacker could make it so other phones in the area are unable to receive incoming calls or SMS messages, according to research presented at the USENIX Security Symposium. The hack involves modifying the baseband processor on some Motorola phones and tricking some older 2G GSM networks into not delivering calls and messages. By 'watching' the messages sent from phone towers and not delivering them to users, the hack could effectively shut down some small localized mobile networks. Essentially the hacked firmware ... can block ... pages by responding to them before the phones that were initially intended to receive them do, something Kevin Redon and company called during their research 'the race for the fastest paging response time.'" Thanks to the power of Osmocom BB, which has implemented Free Software baseband for several GSM devices. Also see the research paper.

Re:first useless reply!

[je ne sais quoi]

Shoot, I couldn't care less about blocking other people's texting, what I want is to block texting to my own phone selectively. If they aren't in my contacts list, I don't want their text message. This is mostly, but not entirely due to AT&T's (and everyone else's) abusive pricing strategy for texts. What I would call fair is rates for text messages that are charged the same as the equivalent amount of voice data. As it is, Apple never did a better thing by creating Messages for iOS and imessage.app for OS X. It's a pity they don't open their standard so that android devices or linux computers can use the same protocol and I would never have to pay for another text message.