The United Nations Security Council is scheduled to hold a thematic counter-terrorism meeting on 11 September 2026. Setting out the month's programme under the French presidency, the Council President said the session would mark 25 years since the September 2001 attacks on New York, and would be an opportunity to renew momentum on counter-terrorism efforts and to address the impact of new technology in that context.
The current UK picture is steady and elevated. The threat to the UK from terrorism remains SEVERE, meaning an attack is highly likely. The threat to Northern Ireland from Northern Ireland-related terrorism remains SUBSTANTIAL, meaning an attack is likely. Threat levels carry no expiry date and can change at any time as new information comes in.
For operators, there is no change to the baseline, but the anniversary window and a high-profile multilateral meeting are the kind of markers that draw attention and can shape the threat picture around symbolic dates and locations. The reference to new technology is a reminder that drones, online radicalisation and digital enablers remain part of the modern threat set. Keep protective planning aligned to a sustained SEVERE baseline, stay alert around notable anniversaries, and factor technology-enabled threats into task risk assessments.





