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There is nothing to intercept on 2G in Canada and USA, 2G was decommissioned.
by betaby 3y ago
There is nothing to intercept on 2G in Canada and USA, 2G was decommissioned.
- bryancoxwell 3y agoThese attacks are generally carried out by a “rogue base station” that simulates being a cell tower. It doesn’t require that there be a local 2G infrastructure.
- betaby 3y agoSIMs from my two different Canadian operator doesn't allow downgrade to 2G for the home networks.
- sidewndr46 3y agoThat's pretty cool, any idea how it works?
- betaby 3y agoAuthentication profiles. Basically one can specify on the SIM profile that for the certain PLMN (mobile operator) only certain authentication methods are allowed (2G, 3G, 4G use different auth methods).
- sidewndr46 3y agothat is good. from what i understand we dont have that in the US
- dataflow 3y agoWhat prevents these from simulating a non-"home" network?
- kalleboo 3y agoYou could by suddenly roaming when you're in your home country is a massive red flag and even normal people are aware and terrified of roaming fees.
- dataflow 3y agoAre you sure your information isn't outdated by a decade or two? Providers have free roaming data nowadays, e.g. https://www.t-mobile.com/support/coverage/domestic-roaming-data https://www.t-mobile.com/support/coverage/domestic-roaming-d...
- betaby 3y ago...and that also locked to a certain auth profiles in Canada.
- kalleboo 3y agoMost of the world isn't the U.S. E.g. in the UK operators recently rescinded free roaming in the EU.
- dataflow 3y agoThe EU? Weren't we talking about the US and Canada in [1]? [1] https://news.ycombinator.com/item?id=35953970 https://news.ycombinator.com/item?id=35953970
- kalleboo 3y agoThe decommission of 2G/3G and removal of downgrades applies pretty much everywhere these days (my operator doesn't even allow 3G downgrades on their 5G plans), I read it as just an example rather than starting a very specific conversation.
- KirillPanov 3y agoThat's the towers. All the handsets still support 2G, and will happily let themselves be downgrade-attacked to it. 2G lacks even the most rudimentary authentication, so you don't even have to try to look like a tower once you've done this. Just say you're a tower.