Questions tagged [smartphone]

A smartphone is a mobile device which combines many of the basic features of personal computing such as email, media playback and web browsing, with the traditional features of a telephone.

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1answer
124 views

Is it possible to create a false charger that drains a device's power?

Inspired by the idea of the USB Killer, I was wondering if it'd be possible to create a device that, when plugged into a mobile phone/laptop/whatever charging port, drains the charge of said device ...
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3answers
210 views

When to change a smartphones with out-of-support OS's?

As we know it from e.g Windows OS on desktops, if the support is outdated there is a risk for security and feature bugs and unstable OS. If a smartphone can't be updated to use a newer OS because of ...
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2answers
157 views

A daemon to tell when do apps access the cell phone camera?

Unavoidable issue of modern cell phones is that they have a front and rear side camera covering almost a 360deg view. And that some applications like, say Facebook request access for everything. So ...
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2answers
668 views

Methods to detect calls being routed through Stingray devices?

Are there any methods for a non-jail broken Apple iPhone to detect rogue cellular towers? Such as the "Stingray" device that mimics cellular towers. From the Apple iPhone user's endpoint side, is ...
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2answers
297 views

Is it safe to install phone driver?

When I connect most Android phones to a Windows 7 computer via USB, Windows will install the appropriate drivers for the device. My (possibly incorrect) understanding is that those drivers come with ...
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1answer
1k views

Can Revolut be PCI DSS compliant?

Basically, the Revolut app shows the PAN and CVV by default in-app and it has a "show PIN" option, how can this be compliant? Here's a screenshot from the app, I have seen the real app and it really ...
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0answers
22 views

Why do phones only allow for 5 fingerprints? [duplicate]

Why do mobile phones only allow for 5 fingerprints for the fingerprint sensor? Is this for security reasons? I am guessing that this was this limitations was for security, opposed to a design choice. ...
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0answers
84 views

Can I detect unique identifiers from random radio chatter?

I am trying to find out if I can uniquely identify smartphones (I would like to find constant identifiers such as IMEI) by passively sniffing the cellular data frequencies. I know that sensitive data ...
3
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1answer
165 views

Why does my password appear in clear text with my smartphone mail IMAP application?

I am using the default Galaxy 5 mail application to fetch my mail with IMAP. Packet capture shows my user and password in clear text (see below). Why does my username and password appear in clear ...
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1answer
6k views

Should the MEID, PESN, IMEI1 and IMEI2 numbers be kept secret?

On my Huawei PLK-AL10, when I type *#06# in the dialer, a window named MEID_IMEI would pop up and display some random strings. Note that someone can get this information through the "Emergency call" ...
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1answer
115 views

Cell phone privacy [closed]

I keep hearing about cell phone tracking, but I always wondered how common is it? Is it something that only 3 letter agencies can do or is it something pretty common? I've seen those websites that ...
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0answers
69 views

Smartphone spyware and password alias

I got a phone as a gift from a company. The company makes smartphones (for example, say Apple) and specializes on topics that I work on at another company. What are the chances that they might have ...
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1answer
877 views

How much entropy does a smartphones' pattern lock have? [duplicate]

What's the entropy of smartphone "pattern passwords"? Through how many nodes do I have to go until I'm safe (say, a reasonable 42 bits of strength)?
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2answers
6k views

How secure is giving confidential information over a cell phone?

It is routine for companies to collect confidential information over the phone (eg, social security numbers to verify accounts, credit card numbers to make purchases, etc). With the prevalence of ...
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1answer
140 views

Would it be easier to be tracked if you were using an IP phone, cell phone or satellite phone?

I was looking into how easy it would to have your location tracked on your cell phone, would any of these types of phones offer more protection? (assuming you couldn't turn off your location on a ...
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2answers
294 views

How much identifying information is in a photograph?

If I take a photograph with a smartphone camera, how much information is there that could be used to identify the owner? I know of Exif tags and that all cameras have slight manufacturing variations ...
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2answers
889 views

Using my Smart Phone in China

I am going to China. If I take my Samsung smart phone and get a local SIM card for calling only (no text, no data), turn off wifi, Bluetooth, and NFC, should my phone be safe as far as the stored ...
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1answer
396 views

Can a smartphone user prevent Google / Apple / Microsoft from finding out where s/he is? If yes, how?

Inspired by the question How does Google know where I am?. If someone has a smartphone and uses it (it is switched on), is there any way in which s/he can surely prevent Google (or Apple, Microsoft, ...
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2answers
354 views

What's the point of buying a Blackberry that runs the Android OS?

Recently, Blackberry began selling smartphones that run the Android OS. If the Android OS has so many security issues out-of-the box, then why bother paying extra for it? Blackberry claims that the ...
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2answers
9k views

How does the Random Hardware Access function work on a smartphone?

Certain smartphones and laptops, one of which my Windows 10 Phone and Laptop (Windows 10, redstone 1 update) have a function called "Random Hardware Access" under the WiFi settings. The settings has ...
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2answers
2k views

Showing hidden phone numbers

Is there a way to detect a hidden caller ?I always wondered how can you do that.I tried using app like private caller or track call but none of them really work.
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4answers
442 views

What can Google actually do on my phone using Google Play Services?

When it comes to Android security and hardening, sources like the TOR project recommend to avoid the installation of Google Play Services (I'll call them only "the services" here). I'm aware that the ...
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3answers
6k views

Why do smartphones limit the amount of fingerprints that can be recorded?

On my Android device, I can store up to 3 fingerprints to unlock my phone with the fingerprint scanner that is built in to the home button. On iPhones it's 5 fingerprints if I'm not mistaken. But most ...
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1answer
145 views

How can an NGO ensure secure mobile communication between HQ and their delegates in the field?

I work for an NGO that does engineering projects in several developing countries. Our delegates who are doing the field work are for the most part not very tech-savvy, i. e. they wouldn't know how to ...
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4answers
2k views

I'm running Android 4.1.2; it includes known vulnerabilities. Installing a newer firmware image would take time and effort. Must I really do so?

Background My Android phone is rather old. It's running stock Android 4.1.2, which includes known security vulnerabilities. Unfortunately, this is the latest firmware which T-Mobile offers for this ...
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2answers
115 views

Why do I need to unlock my phone to enable wifi

I have a mobile phone running Android 6.0.1, even when the phone is locked, I still can access various settings from the quick settings menu, one of those is the wifi setting. However, when I enable ...
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2answers
2k views

Does the use of a smartphone's Secure Element really offer security benefits to a banking app?

My bank's Android application allows users to perform financial transactions without the use of the physical token generator (which requires an ATM card to be inserted and a valid PIN to be provided) ...
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2answers
8k views

Phone Hacked. How serious is it?

I was in an argument online with a guy and he sent me a fake youtube link. I clicked on it like an idiot and he asked me how my city is (he knows the name) and he knows my cable provider. Does anyone ...
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1answer
305 views

What are attack vectors for attacking tethering smartphones?

Are there any attack vectors for attacking tethered wireless networks (mobile hotspot), other than for normal wireless networks? Assuming the tethered wirless network uses state-of-the-art encryption+...
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1answer
180 views

What is a root method and how is it achieved?

I'm wondering what exactly happens when you are finding a root method on Android. Is it just poking and prodding? I know it's high privileges, but how can that not be enabled through a regular ...
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2answers
2k views

My cellphone is infected, and it keeps coming back

My Android smartphone downloads apps automatically without any interaction. Generally, the apps are known but some are unknown apps. I can only assume this is a virus/malware. So I decided to format ...
24
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3answers
4k views

Listening to phone calls as user profiling for marketing [closed]

I had a landline phone call about xyz with an xyz-expert (also on landline) for about an hour, for the first time. After couple of days I started getting suggested links on websites as an ad exactly ...
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2answers
146 views

Best way to keep cell day to day phone calls private - is VOIP better?

This question is about preventing eavesdropping by hackers, thieves, or other smart people collecting information for shady purposes. Is it better to buy a smartphone and install a VOIP service on it ...
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12answers
32k views

Can I get malware on my phone, if my phone is tethered to my laptop downloading torrents?

I used a dongle before getting a phone, but now use my phone as a hotspot. I don't want my phone to get malware or viruses. Can my phone get viruses if I use it as a hotspot while downloading ...
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6answers
7k views

What security features are important when buying a smartphone?

I'm looking at replacing my very old android smartphone. Information security is increasingly a feature that I'm looking for. As well as being slow, I don't think I can upgrade my current handset to ...
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2answers
3k views

Money stolen via Android malware Port 4000 remote anything exploit

As background, my business bank account was compromised. The compromise also involved call forwarding of a smartphone. So they got bank credentials and cell phone credentials. I initially suspected ...
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2answers
143 views

Blackphone - Silentcircle - mobile apps

i have question about blackphone (silent circle). Is there any advantage over other mobile phones if i want to use third party mobile apps? So if I agree with terms of use of some applications, ...
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1answer
394 views

Is it unsafe to restore backed up data from Google servers?

I have an Android smartphone that I don't trust. It has an old version of Android and has been vulnerable to Stagefright and a host of a hundred other vulnerabilities for months. Although there is no ...
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1answer
289 views

Can IMSI catchers detect encrypted communications? [closed]

I would like to know if IMSI catchers can detect encrypted communications in general. Anyone got experience with that? Thanks
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1answer
98 views

Using stingray against police (idea) [closed]

This is focusing on UK mainly, where police radios are similar to mobile phones. Pretend it's possible to buy Stingray, the IMSI scanner. Pretend Jimmy is a criminal, waiting for a police raid at any ...
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1answer
135 views

BBM pin to pin security

If a BBM message is intercepted over unsecure Wi-Fi and the PIN of the intended recepient is known. Can it be decrypted easily.
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1answer
1k views

Cell phone cloning and applications that use internet

I recently watched a show where someone was able to clone a smartphone with the FID, IMEI or other numbers found on a phone. They were able to see the other parties text messages and call logs. My ...
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1answer
2k views

Can a SIM card in a different phone be tracked?

If I have lost my phone, reported it, but I had the SIM, would the SIM be tracked back to me if I got a new phone and used this SIM?
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0answers
68 views

Does a smartphone without a SIM card transmits/receives/connects data to/from nearest cellular tower? [closed]

Does a smartphone without a SIM card transmits/receives/connects data to/from nearest cellular tower ?
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1answer
327 views

Are there any potential complications with these secure baseband ideas?

So I have been working on some ideas for securing cell phones from baseband level exploits and I was wondering if there are any potential complications with these solutions such as practicality or ...
33
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3answers
8k views

Can malware be transmitted via a USB charger plugged into a wall socket?

I have a smart phone that I often plug into a wall socket for charging via a small adapter that rectifies the AC to DC power and transforms the voltage from line (120V or 240V) to 5 V DC, probably ...
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2answers
12k views

Can a random person find me if my location services are turned off?

I was recently asked by a friend if it's possible for someone to find someone else's location if they didn't have the location services on, on their phone. I told him I'm not sure but I didn't think ...
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1answer
2k views

Smartphone motherboard - Does it hold any data?

I recently went for a smartphone repair and got its motherboard replaced. However, it didn't occur to me to ask for the damaged motherboard back. I had confidential credentials and data stored. No ...
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1answer
493 views

Way to keep Google from knowing the SIM card I am using on Android

We see that the the details of the Telecom operator along with other details are available to Google for the SIM card that we are using on an Android Phone. Is there any way that can be applied or ...
3
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1answer
194 views

(Theoretically) intercepting GCHQ's smartphone exploit

In the lastest Snowden interview, it was revealed that GCHQ used an exploit sent via SMS to gain access to smartphones, and that this 'exploit' goes unnoticed to the handset user. I was wondering if ...