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Questions tagged [device-locking]

The tag has no usage guidance.

2
votes
1answer
104 views

What happens if incorrect SIM card PUK entered 10 times?

I know that if incorrect SIM card PIN is entered three times, it is erased, so there is no longer any valid PIN, but user can set up new PIN with PUK. But when incorrect PUK is entered 10 times, it is ...
1
vote
3answers
106 views

Is it ill-advised to use the same password for lock screen and full disk encryption (Windows 10 BitLocker)?

I am wondering which attacks can be prevented by using a different password for the lock screen and full disk encryption. The goal is to prevent people from accessing my data. The details of my setup ...
50
votes
5answers
8k views

Downsides of showing email address on Android lock screen

My stock Android 9.0 gives me the option of showing some short text message on the lock screen. I want to add my email address here, so people know how to contact me if they find my phone. Are there ...
1
vote
0answers
104 views

How do third party providers remove the SIM lock on a mobile phone?

There are third party providers online who offer to remove the SIM lock on mobile phones, by emailing the unlock code. All they ask for is the phone's IMEI and the network provider's name. In one ...
1
vote
1answer
99 views

Is there any system that can authenticate my device to open only select apps on it?

I am looking to have an authentication system with which I can link a device to an employee, and then put in place certain privileges so that the employee is only able to open select apps on only that ...
0
votes
2answers
465 views

How can an Android device be unlocked, and how long would that take?

The original question was about the minimum password (or PIN) length (or entropy) for the screen lock in Android. Seeing that nobody answered, and following Schroeder's advice, I'm going to edit it ...
1
vote
1answer
151 views

Shoulder surfing prevention or mitigation for unlocking mobile devices

How can shoulder surfing be prevented or mitigated when unlocking mobile devices? I found other questions about shoulder surfing that focus more on desktop machines, but I believe the issue is much ...
5
votes
1answer
155 views

Do app lockers improve smartphone security?

I recently installed Norton App Lock on my smartphone. It asks for a password pattern every time one tries to open an app. So, theoretically, it protects you in case someone is able to bypass your OS ...
0
votes
1answer
127 views

Device Identification for 2FA challenge

Most sites that take security seriously, try to identify the moment when you use a new (or "unfamiliar") device to sign in to your online account. Example, when you sign in from a different computer ...
2
votes
0answers
182 views

Implementation of existing smart lock methods

Smart lock? Apple, Android, Google, and now Microsoft have a feature called "auto|smart|dynamic|proximity lock" which enables to unlock your computer by simply carrying a (Bluetooth) support device ...
1
vote
3answers
231 views

Offline authentication based on device serial number

I've a portable device with custom application written for it. What I want, is to secure that application, to make it impossible or at least harder to run it(application, or OS itself it doesn't ...
53
votes
13answers
15k views

Allow only specific devices to be connected to USB

Suppose I have a Windows PC in a safe room, disconnected from the internet, with only 3 cables connecting to another room, to a mouse, monitor and keyboard. The computer contains highly sensitive ...
4
votes
1answer
1k views

How secure is Google’s/Android’s Smart Lock functionality?

Newer Android phones (since Android 5, “Lollipop”) have the Smart Lock functionality that allows one to unlock the phone, among other ways, with a trusted device (Bluetooth or NFC) instead of entering ...
-1
votes
1answer
66 views

Device Passwords and how do they function [closed]

What happens when I set a password on a device? Does it encrypt everything with my password?
3
votes
2answers
109 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 ...
1
vote
3answers
1k views

Prompt for PIN when installing Android Apps?

is there a way to disable app installations until you provide a certain PIN? I have the following scenario in mind: I'm a heavy Google Photos and Google Drive user, but only from my Windows computer ...
5
votes
4answers
221 views

Laptop battery dies, only IT is allowed to access machine after plugging in

Apparently, my company has a security policy that states that if a laptop's battery dies (that is, uses up all charge because it's unplugged), the laptop gets locked and a domain administrator has to ...
4
votes
3answers
3k views

What OS's will “brick” a stolen phone; preventing their use or resale by a potential thief?

You can look at this question in two ways: Prior to purchasing a used phone, I want to ensure that the IMEI is not locked and I'm able to use it fully. Or you can be a purchaser who wants to devalue ...
1
vote
1answer
445 views

Phonegap/Cordova InApp pinlock, difference if its on Java Layer/HTML5 layers?

I am going to build a PIN lock on Phonegap, trying to understand the security layer. As Phonegap is just a webview, it can be easily altered, if you are connected to a device. I believe that you can ...