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Re: Bizarre behavior of a non-smart mobile phone

Cross-posted to 5 groups.

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Am 15.05.2017 um 05:00 schrieb William Unruh:
> On 2017-05-14, Mok-Kong Shen <mok-kong.shen@t-online.de> wrote:
>> Am 15.05.2017 um 00:17 schrieb William Unruh:
>>> On 2017-05-14, Mok-Kong Shen <mok-kong.shen@t-online.de> wrote:
>>>> Am 14.05.2017 um 18:16 schrieb William Unruh:
>>>>> You give zero information and you expect a reasoned amswer?
>>>>> What make and model of phone? Who is your cell phone service provider? What kind
>>>>> of SIM?
>>>>>
>>>>> I would bet against hacking.
>>>>
>>>> Not necessary for more informations from me. Following remark (2) below
>>>> you'll have much more informations than you ever have time to study!
>>>
>>> Yes, right. Google will tell me all about your particular situation.
>>> So, you refuse to give us any more information.
>>
>> Mmm, please tell me why is it essential that you know my cell phone
>> service provider. (You have a list of good providers and one of bad
>> providers, or what??)
>
> Forget it. I have lost all interest.

Honestly I unfortunately can't do that quite well, since I couldn't
even imagine a tiniest reason that the name of the provider could be 
helpful for the investigation here at all and that also in view of
your past general position of argumention to my posts in another
usenet group.

M. K. Shen
>>>>>
>>>>> On 2017-05-14, Mok-Kong Shen <mok-kong.shen@t-online.de> wrote:
>>>>>>
>>>>>> That a modern smartphone with Internet access and a multitude of nice
>>>>>> features is liable of being hacked similar to a PC is evident. On the
>>>>>> other hand, a non-smart mobile phone, of design of the earlier
>>>>>> generation, unintelligent, clumsy, no Internet access, though yet
>>>>>> purchasable for telephone and SMS purposes only, could IMHO easily
>>>>>> mislead one to think that the device may be sufficiently secure against
>>>>>> malicious manipulations. The fact, I presume, is however that, if an
>>>>>> adversary is capable enough to enter the cellular network, he could
>>>>>> access the SIM card to perform his malicious work. A recent personal
>>>>>> experience of mine is the following: I bought such a device and a
>>>>>> pre-paid SIM card, entered the telephone numbers of my friends into its
>>>>>> contact address list and informed my friends of my new mobile phone
>>>>>> number. Soon, though at a rather low frequency averaging roughly one
>>>>>> event per day, a number of my friends complained that I had called them
>>>>>> but strangely never attempted to say even a single word. It turned out
>>>>>> that the device each time seemingly arbitrarily selected an entry in
>>>>>> the contact address list and called automatically, which could also be
>>>>>> verified by its list of all outgoing calls. As remedy I deleted all
>>>>>> telephone numbers of my friends in it, leaving however for experimental
>>>>>> purpose my own home telephone number. One following night I had then
>>>>>> the uncommon experience of being awoken by a call from my own mobile
>>>>>> phone! (Actually two new mobile phones of the same brand were tested.
>>>>>> Following my complains of the said phenomenon, the vender gave me a
>>>>>> new exemplar in exchange, so that the probability of there being a
>>>>>> manufacturing problem is vanishingly small.)
>>>>>>
>>>>>> Another phenomenon that co-occurs with the above is that the device
>>>>>> powers off automatically at a frequency comparable to the first, even
>>>>>> though its battery is sufficiently loaded.
>>>>>>
>>>>>> Being a layman in such issues, I should be very grateful for exact
>>>>>> explanations of the phenomena.
>>>>>>
>>>>>> Remarks:
>>>>>>
>>>>>> (1) I am mainly interested in technical explanations of the phenomena,
>>>>>> i.e. whether it is indeed true, and if yes how, that the SIM card in my
>>>>>> mobile phone got manipulated, and personally deem it neither favorable,
>>>>>> nor essential, realistic, etc. to conjecture on the motivations behind
>>>>>> such manipulations, if these indeed happened.
>>>>>>
>>>>>> (2) Googling with e.g. "cell phones calling themselves" will turn up
>>>>>> a lot of apparently similar cases which, I guess, could stem from
>>>>>> diverse different causes in practice. It seems that there have not been
>>>>>> much scientifically exact and detailed investigations done on the issue
>>>>>> and that the phenomenon can occur both to modern smartphones with
>>>>>> Internet access (hence higher liability of being hacked) and to the
>>>>>> non-smart mobile phones without Internet access.
>>>>>>
>>>>>> M. K. Shen
>>>>>>
>>>>>> ----------------------------------------
>>>>>> http://mok-kong-shen.de
>>>>
>>

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Thread

Bizarre behavior of a non-smart mobile phone Mok-Kong Shen <mok-kong.shen@t-online.de> - 2017-05-14 11:51 +0200
  Re: Bizarre behavior of a non-smart mobile phone William Unruh <unruh@invalid.ca> - 2017-05-14 16:16 +0000
    Re: Bizarre behavior of a non-smart mobile phone Mok-Kong Shen <mok-kong.shen@t-online.de> - 2017-05-14 21:19 +0200
      Re: Bizarre behavior of a non-smart mobile phone William Unruh <unruh@invalid.ca> - 2017-05-14 22:17 +0000
        Re: Bizarre behavior of a non-smart mobile phone Mok-Kong Shen <mok-kong.shen@t-online.de> - 2017-05-15 00:42 +0200
          Re: Bizarre behavior of a non-smart mobile phone William Unruh <unruh@invalid.ca> - 2017-05-15 03:00 +0000
            Re: Bizarre behavior of a non-smart mobile phone Mok-Kong Shen <mok-kong.shen@t-online.de> - 2017-05-15 06:25 +0200
              Re: Bizarre behavior of a non-smart mobile phone Serg io <invalid@invalid.com> - 2017-05-21 13:26 -0500
                Re: Bizarre behavior of a non-smart mobile phone Shadow <Sh@dow.br> - 2017-05-24 19:43 -0300
                Re: Bizarre behavior of a non-smart mobile phone Mok-Kong Shen <mok-kong.shen@t-online.de> - 2017-05-25 11:47 +0200

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