New Android SIM card vulnerability - Security Discussion

Didn't see another thread about this in here:
http://www.v3.co.uk/v3-uk/news/2283...llions-of-mobile-phones-vulnerable-to-attacks
Apparently many SIM cards only use single-DES-56 encryption. Anyone know if there's a way to tell what any given SIM card uses?

JrBobDobbs said:
Didn't see another thread about this in here:
http://www.v3.co.uk/v3-uk/news/2283...llions-of-mobile-phones-vulnerable-to-attacks
Apparently many SIM cards only use single-DES-56 encryption. Anyone know if there's a way to tell what any given SIM card uses?
Click to expand...
Click to collapse
I did read about the SIM card hack. According to the answer when asked what a user should do, the researcher said that if your SIM card is more than 3 years old, you should replace it. I went to a T-Mobile (USA) store and asked for a new SIM replacement, free of charge, because mine was over 3 yrs old.

It would still be nice to find a way to verify this, as who's to say that T-Mobile doesn't want to get rid of their old SIM card stock, and gives you an old vulnerable one?

Related

Omnia 2 i920 Sim card?

Hi, I have bought an unlocked Samsung Omnia 2 i920 online, I was told I can insert my fido sim card, however I don't see any sim card slot. I have looked everywhere. I was wondering if you guys can tell me if there is a sim card slot somewhere hidden or somewhere i did not see, please take a picture if you have one. If not then how do I choose a network to go with other then the current Verizon network if its unlocked? Please let me know. Thanks.
ak21 said:
Hi, I have bought an unlocked Samsung Omnia 2 i920 online, I was told I can insert my fido sim card, however I don't see any sim card slot. I have looked everywhere. I was wondering if you guys can tell me if there is a sim card slot somewhere hidden or somewhere i did not see, please take a picture if you have one. If not then how do I choose a network to go with other then the current Verizon network if its unlocked? Please let me know. Thanks.
Click to expand...
Click to collapse
look image file that I attach below
I saw your image, though mines doesn't look like that (is that when you took the battery out from the back?) mines the i920, I think your's the i8000. Anyways the tech support called me, since i sent the person a message about the sim slot, and he told me there isn't a sim slot in my phone however i can exchange it for another one that has one (i made a thread about it). Thanks for helping though.
RUIM Phone-without SIM

[Q] HELP Regarding the HD7S unlock problem

Hello, I brought a HTC HD7S unlocked version from Amazon. When I first got the phone, I put a AT&T prepaid sim card into the phone, it works well. However, because I need to modify the Live ID, I reset the phone to the factory setting. And then, bad things happened. When I put a AT&T prepaid sim card, it said, the SIM card is missing or invalid. When I put another AT&T prepaid sim card, it still did not work. However, when I put a AT&T family plan card into my phone, it works well. So what`s the problem and how can I use a AT&T prepaid sim instead of the family plan sim card ??
Best wishes for everyone
Help anyone who knows the answer . Thank you so much

[Q] oX+ sim question

Ok so I am currently staying in Russia. And do recently I bought an Hox+ from eBay and it was shipped here. Now the guy never had a problem with it because it is newly bought. So it was shipped to me in the condition he sent it. Now I bought a factory unlock key and it is in my email.
So I went and cut my normal SIM card into a micro SIM card and put it in the phone but even when I restart the phone it just says No SIM Card. Not as an error I suppose.
I tried using a very old ATT SIM I had (converted to Micro SIM) but the phone didn't read it either. So I don't know what the problem is. My old phone reads my newly cut micro SIM but my phone doesn't. And I am thinking maybe because the att SIM is so many years old the phone won't see it, and maybe the phone won't see the Russian SIM card either, so my last option I suppose it to get a proper micro SIM from MTS.
What are your ideas? Also can I make the SIM unlock code show up on the screen using a secret code? You know like when people do that global phone code or *#06# code? My phone was also bootloader unlocked, relocked and os was restored too.
Serilei said:
Ok so I am currently staying in Russia. And do recently I bought an Hox+ from eBay and it was shipped here. Now the guy never had a problem with it because it is newly bought. So it was shipped to me in the condition he sent it. Now I bought a factory unlock key and it is in my email.
So I went and cut my normal SIM card into a micro SIM card and put it in the phone but even when I restart the phone it just says No SIM Card. Not as an error I suppose.
I tried using a very old ATT SIM I had (converted to Micro SIM) but the phone didn't read it either. So I don't know what the problem is. My old phone reads my newly cut micro SIM but my phone doesn't. And I am thinking maybe because the att SIM is so many years old the phone won't see it, and maybe the phone won't see the Russian SIM card either, so my last option I suppose it to get a proper micro SIM from MTS.
What are your ideas? Also can I make the SIM unlock code show up on the screen using a secret code? You know like when people do that global phone code or *#06# code? My phone was also bootloader unlocked, relocked and os was restored too.
Click to expand...
Click to collapse
You're in the wrong forum my friend, this is the One XL forum.

AT&T sim card not working on International version

I just got my One Plus One today, bought it from OP, and its not reading my sim card. I even want to AT&T to get a new one and still the same thing. Anyone have any advice?
bigant262 said:
I just got my One Plus One today, bought it from OP, and its not reading my sim card. I even want to AT&T to get a new one and still the same thing. Anyone have any advice?
Click to expand...
Click to collapse
Did you put the SIM card in correctly? The SIM tray is backwards in the OPO compared to pretty much every other phone.

T-Mobile converted to international dual sim single imei question

As the title states, I have a T-Mobile OP 7 pro thats been converted to international. I already have the dual sim tray in it and have used it with a verizon sim in slot one and google fi in slot two. Only verizon required the imei to be attached to the sim. Google fi was pop it in and go.
Both lines worked perfectly with that set up.
I'm about to be using a verizon sim and a red pocket sim on att network in it. Thats going to require me to report the imei to redpocket to activate the sim sim same as verizon.
Will only haveing the one imei reported to both carriers be an issue? and is there a way to retrieve the second imei from the phone?+
I tried searching the forums and couldn't really find an answer.
As long as your 2 sims are on different networks for example one on AT&T and one on T-mobile you should be ok. The only time you might run into an issue is if you are using an mvno's sim that uses the same network as your primary. I'm doing that right now (also on a t-mobile op7 converted to international with dual sim tray) with T-mobile as my 2ndary and soon to be gone sim and Ultra Mobile as my Primary (which also uses t-mobile's network)......T-Mobile has been reported multiple times not to pay attention to this. Other networks may not be so forgiving. To answer your last questions...there IS no second imei to retrieve. The device was intended to be a single sim device so no 2nd one was allocated. The fact it works with the same imei in both is luck more than anything else.
famewolf said:
As long as your 2 sims are on different networks for example one on AT&T and one on T-mobile you should be ok. The only time you might run into an issue is if you are using an mvno's sim that uses the same network as your primary. I'm doing that right now (also on a t-mobile op7 converted to international with dual sim tray) with T-mobile as my 2ndary and soon to be gone sim and Ultra Mobile as my Primary (which also uses t-mobile's network)......T-Mobile has been reported multiple times not to pay attention to this. Other networks may not be so forgiving. To answer your last questions...there IS no second imei to retrieve. The device was intended to be a single sim device so no 2nd one was allocated. The fact it works with the same imei in both is luck more than anything else.
Click to expand...
Click to collapse
Thanks for the reply, the second part is what I really wasn't sure of if the phone just hid the second IMEI or if it actually didn't have one.
I should be good then. I got the AT&T Redpocket sim and main will be Verizon.
blooddragon78 said:
Thanks for the reply, the second part is what I really wasn't sure of if the phone just hid the second IMEI or if it actually didn't have one.
I should be good then. I got the AT&T Redpocket sim and main will be Verizon.
Click to expand...
Click to collapse
Don't quote me on this, but from days with the 6T, I'm pretty sure it's just not reported in the software correctly but on the network side there are actually two different IMEID.
You should be able to (at least on Verizon) to log in and see the IMEID that is attached to a SIM.
Try the VZW sim in slot 1 and check online for the imei. Log out and switch the sim to slot 2 and check again. Hopefully you should see a different imei. Please let us know what you find out.
Sent from my SM-T830 using Tapatalk
blooddragon78 said:
As the title states, I have a T-Mobile OP 7 pro thats been converted to international. I already have the dual sim tray in it and have used it with a verizon sim in slot one and google fi in slot two. Only verizon required the imei to be attached to the sim. Google fi was pop it in and go.
Both lines worked perfectly with that set up.
I'm about to be using a verizon sim and a red pocket sim on att network in it. Thats going to require me to report the imei to redpocket to activate the sim sim same as verizon.
Will only haveing the one imei reported to both carriers be an issue? and is there a way to retrieve the second imei from the phone?+
I tried searching the forums and couldn't really find an answer.
Click to expand...
Click to collapse
@blooddragon78 couple questions for you, as I also have OP7P that I bought from t-mo and switched to international:
- Were you able to use the sim tray that came with the phone? Or did you buy an aftermarket tray? I've heard mixed messages about the tray from t-mo having physical space for 2 sim cards.
- Did you have to unlock your phone to make use of the dual SIM functionality? Or in other words, are you still making device payments to t-mo?
flick0416 said:
@blooddragon78 couple questions for you, as I also have OP7P that I bought from t-mo and switched to international:
- Were you able to use the sim tray that came with the phone? Or did you buy an aftermarket tray? I've heard mixed messages about the tray from t-mo having physical space for 2 sim cards.
- Did you have to unlock your phone to make use of the dual SIM functionality? Or in other words, are you still making device payments to t-mo?
Click to expand...
Click to collapse
I purchased a dual Sim tray from Amazon. The Sim tray from T-mobile will not fit 2 Sim cards. I'm a t-mobile tech expert so I do know for sure aside from owning one and doing it. For dual Sim to work the device does need to be unlocked as it only has one imei. If you didn't unlock before the conversion you will need to convert back to get the unlock app to be able to unlock.
There were a couple of threads on xda to get unlocked in the system but you still have to run the app. Not sure if they are active still.
If you need some help dm me.
Help with Op 7 Pro Sprint Unlocked version
Hello, I sent you a private message @blooddragon78, but Imma post here as well to see if anyone else can help me out, I'll greatly appreciate it. I came across this thread on being able to convert a T-mobile OP 7 Pro to the international version and enabling dual sim functionality. I was hoping to do the same as well, but I havent made the purchase yet in case it's not doable. Im currently looking at this OP7 Pro (Sprint version) that was factory unlocked and sold on Amazon (it's the OP 7 Pro sold at USD 499 by the Farmug Store) (if will be great if you guys can check and see the product to know what I mean exactly).
My question is what is the difference and meaning between "factory unlock/ phone unlocked" vs "sim unlocked" vs "unlocked bootloader?" I know this phone is unlocked for use on different carriers (and I live in Malaysia even), but how do I convert the phone to the international version so that I can receive updates from OnePlus directly (and not through the carrier)?
And how do I enable the dual sim functionality? Do I need to unlock the bootloader? Am I able to do that myself? Because I got confused as some people say unlocking the sim can only be done by the carrier, but Im not sure what is the difference of that with unlocking the bootloader.
In addition, say if Im able to convert it to the international version and get updates from OnePlus directly, dual sim functionality is enabled and such. Will updating the OS of the phone automatically (not doing it manually) lock the network/ brick the phone?
xHayashi said:
Hello, I sent you a private message @blooddragon78, but Imma post here as well to see if anyone else can help me out, I'll greatly appreciate it. I came across this thread on being able to convert a T-mobile OP 7 Pro to the international version and enabling dual sim functionality. I was hoping to do the same as well, but I havent made the purchase yet in case it's not doable. Im currently looking at this OP7 Pro (Sprint version) that was factory unlocked and sold on Amazon (it's the OP 7 Pro sold at USD 499 by the Farmug Store) (if will be great if you guys can check and see the product to know what I mean exactly).
My question is what is the difference and meaning between "factory unlock/ phone unlocked" vs "sim unlocked" vs "unlocked bootloader?" I know this phone is unlocked for use on different carriers (and I live in Malaysia even), but how do I convert the phone to the international version so that I can receive updates from OnePlus directly (and not through the carrier)?
And how do I enable the dual sim functionality? Do I need to unlock the bootloader? Am I able to do that myself? Because I got confused as some people say unlocking the sim can only be done by the carrier, but Im not sure what is the difference of that with unlocking the bootloader.
In addition, say if Im able to convert it to the international version and get updates from OnePlus directly, dual sim functionality is enabled and such. Will updating the OS of the phone automatically (not doing it manually) lock the network/ brick the phone?
Click to expand...
Click to collapse
I don't k ow about dual sim.but converting International will allow Ota updates. If it's sim unlocked it should stay. Mine is still sim locked to t-mobile and I'm on internatti fimware

Categories

Resources