Lockt - A Lock Screen To Protect Your Data on Windows Pc

Lockt looks and acts like a standard lock screen. Enter the correct pattern and your phone unlocks, enter the wrong pattern and it stays locked.

But... Lockt also lets you quickly and quietly select some actions while entering the unlock pattern. You decide which actions run. They run before your device unlocks. Most run silently, only you know they ran.

Lockt has 18 actions, including ones to wipe external storage, send SMS and email messages, reset the device, take photos and record audio. More actions are on the way.

We all keep private information on our phones and tablets. Contacts, banking details, family photos, videos, appointments, meeting notes, call logs...

Good passwords and encryption help keep this safe, but sometimes you have to hand your unlocked device over to someone else.

Lockt Lock Screen can help protect you, your data, and your devices

If you just want to unlock and use your device, enter the unlock pattern and you're in

If you want to run some of Lockt's actions, tap the icons matching the action sets, then enter the unlock pattern. The action sets run and your device unlocks.

Lockt's actions include:
- Wipe External Storage
- Delete Named Directories
- Overwrite Free External Storage (to prevent recovery)
- Wipe and Overwrite External Storage, Then Perform a Factory Reset
- Delete Call Logs
- Delete Calendar Entries
- Backup and Delete Contacts
- Take Photos
- Record Audio
- Send An SMS Message With Your Location
- Send An Email With Your Location
- Perform a Factory Reset
- Uninstall Lockt
- Make Lockt look like a standard lock screen app
And more, with more to come

You combine Lockt's actions into action sets, then select and run action sets as you unlock your device. Creating action sets is quick and easy

An example of where Lockt may be useful is going through passport control. You hand over your passport. The officer tells you to unlock your mobile phone so they can search it. Maybe they'll copy your data as well (1). If you refuse you'll be delayed and given a hard time. Your device may be seized, you may be refused entry, detained and deported. Couldn't happen? In 2016 over 19,000 mobile devices were searched by the US Customs and Border Protection Agency (2). That's up from about 8,500 in 2015 (2).

To protect yourself and your privacy set up Lockt action sets. Then select and run action sets as needed.

For example, you could create action sets that
delete some directories and then overwrite free external storage to prevent recovery
send an SMS message with your location to multiple recipients
start recording audio and taking photos
run a full factory reset after a configurable delay, you can cancel during the delay
... or any other combination of Lockt's actions

To run an action set simply tap its icon before entering the unlock pattern.

​(1) https://www.dhs.gov/publication/mobile-device-acquisition
(2) http://www.businessinsider.com/can-us-border-agents-search-your-phone-at-the-airport-2017-2

1.0: Initial release
1.1: Improve SD card support for Nougat
1.2: Improve speed of permissions checking

Allows an application to read from external storage.
Allows an application to write to external storage.
Allows an application to record audio.
Required to be able to access the camera device.
Allows applications to disable the keyguard if it is not secure.
Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.
Allows an application to receive the ACTION_BOOT_COMPLETED that is broadcast after the system finishes booting.
Allows access to the list of accounts in the Accounts Service.
Allows applications to write the sync settings.
Allows an application to manage access to documents, usually as part of a document picker.
Allows an application to change the Z-order of tasks.
Allows an application to send SMS messages.
Allows an application to read SMS messages.
Allows an application to read the user's contacts data.
Allows an application to write the user's contacts data.
Allows read only access to phone state, including the phone number of the device, current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device.
Allows an application to read the user's call log.
Allows an application to write (but not read] the user's call log data.
Allows an application to read the user's calendar data.
Allows an application to write the user's calendar data.
Allows an app to access approximate location.
Allows an app to access precise location.
Allows applications to set the wallpaper.
Allows an application to collect component usage statistics
Declaring the permission implies intention to use the API and the user of the device can grant permission through the Settings application.
Allows an app to create windows using the type TYPE_APPLICATION_OVERLAY, shown on top of all other apps.
Allows applications to open network sockets.
Allows applications to access information about networks.