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Groups > comp.security.firewalls > #774
| From | Mok-Kong Shen <mok-kong.shen@t-online.de> |
|---|---|
| Newsgroups | comp.security.firewalls, alt.anonymous, alt.anonymous.email, alt.privacy, alt.computer.security |
| Subject | Re: Bizarre behavior of a non-smart mobile phone |
| Date | 2017-05-14 21:19 +0200 |
| Organization | albasani.net |
| Message-ID | <ofaake$oev$1@news.albasani.net> (permalink) |
| References | <of99aq$7sf$2@news.albasani.net> <of9vt7$fum$1@dont-email.me> |
Cross-posted to 5 groups.
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! 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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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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