title: Why is using an implicit intent to start a service not safe?
body: <p>When I start a service with an implicit intent I get a warning: </p>
  
  <blockquote>
    <p>Implicit intents with startservice are not safe: ...</p>
  </blockquote>
  
  <p>Why?</p>
  
  <p><strong>Edit:</strong></p>
  
  <p>I am using my own internal category that no other application should use and my service is not exported <code>android:exported="false"</code>.</p>