Launching the Terrorist Content Analytics Platform's (TCAP) Tiered Alert System

Access the full policy HERE

The Terrorist Content Analytics Platform (TCAP) identifies and verifies terrorist content across the internet. The TCAP feeds into a structured alerting system, enabling tech platforms to act against terrorist exploitation of their services.

In July 2023, Tech Against Terrorism adopted a new prioritisation framework, the TCAP Tiered Alert System, to enable tech platforms and others to better respond to the content we identify. The framework is part of TCAP’s Phase II expansion.

Tiers infographic

We alert terrorist content based on the following tiers:

Tier 1 – Threat To Life (TTL)

Alerts tech platforms and law enforcement to online content indicating a high threat to life, supporting responses to emergency incidents, and mitigating the threat posed by online violent extremist content.

Tier 2 – Crisis

Alerts tech platforms and law enforcement to “crisis content” or content produced by terrorist attack perpetrator(s) which is then disseminated online. This will include the real-time alerting of content during an ongoing crisis governed by our upcoming Incident Response Policy, as well as the alerting of historical material produced by terrorist attack perpetrators.

Tier 3 – Designation

Alerts tech platforms to official propaganda produced by terrorist entities designated by selected democratic nations states and supranational institutions.

Tier 4 – Promotional

Alerts tech companies to material that directly supports designated terrorist organisations, glorifies terrorists or terrorist acts, or provides instructions for the purpose of terrorism. Tier 4 is split into three taxonomic categories: Unofficial media outlets, Inspirational material, and Instructional material.

Tier 5 – Recommended

We aim to cover content that is not necessarily illegal but that is closely affiliated with terrorism and violent extremism.


Our expansion of the TCAP is driven by three grounding principles:

Threat response

Improving the TCAP’s capacity to support vulnerable platforms and law enforcement to respond to “Threat to Life (TTL)” incidents and “crisis” situations concerning viral online content, such as terrorist manifestos and livestreams, produced by terrorist attack perpetrators.

Holistic approach

Widening TCAP Inclusion Policy to capture a broader range of terrorist content (such as glorifying material), to reflect and counter the post-organisational nature of the global terrorist threat.

Rule of law

Grounding our approach in the rule of law by complementing terrorist designation with other legal bases for our policies and providing strict criteria for the inclusion of terrorist content.