Add information about public indicators and support avenues to documentation

docs/introduction.md

@@ -12,6 +12,20 @@ Mobile Verification Toolkit (MVT) is a collection of utilities designed to facil
 
 MVT is a forensic research tool intended for technologists and investigators. Using it requires understanding the basics of forensic analysis and using command-line tools. MVT is not intended for end-user self-assessment. If you are concerned with the security of your device please seek expert assistance.
 
+## Indicators of Compromise
+
+MVT supports using [indicators of compromise (IOCs)](https://github.com/mvt-project/mvt-indicators) to scan mobile devices for potential traces of targeting or infection by known spyware campaigns. This includes IOCs published by [Amnesty International](https://github.com/AmnestyTech/investigations/) and other research groups.
+
+!!! warning
+    Public indicators of compromise are insufficient to determine that a device is "clean", and not targeted with a particular spyware tool. Reliance on public indicators alone can miss recent forensic traces and give a false sense of security.
+
+    Reliable and comprehensive digital forensic support and triage requires access to non-public indicators, research and threat intelligence.
+
+    Such support is available to civil society through [Amnesty International's Security Lab](https://www.amnesty.org/en/tech/) or [Access Now’s Digital Security Helpline](https://www.accessnow.org/help/).
+
+More information about using indicators of compromise with MVT is available in the [documentation](iocs.md).
+
+
 ## Consensual Forensics
 
 While MVT is capable of extracting and processing various types of very personal records typically found on a mobile phone (such as calls history, SMS and WhatsApp messages, etc.), this is intended to help identify potential attack vectors such as malicious SMS messages leading to exploitation.