Iran’s reach beyond its borders is a growing worry for Western security services, with credible reports of intimidation, kidnappings and attempted assassinations linked to the regime and its proxies.
Western officials and reporters say Iran has long run covert operations aimed at silencing dissidents and intimidating critics abroad, and those efforts are now under sharper scrutiny as the conflict at home escalates. Security services in multiple countries have flagged patterns: surveillance, threats, and sometimes violent action aimed at exiles, journalists, and activists. Those patterns suggest a deliberate campaign that goes beyond opportunistic violence to coordinated attempts at coercion and elimination.
The Financial Times has detailed several episodes that underline the problem, including direct threats over embassy channels and plots hatched in foreign cities. One disturbing example involved a message from inside an embassy urging expatriates to embrace a doctrine of national sacrifice, a note that British officials warned could incite violence. Authorities are warning because rhetoric from official or quasi-official sources can be the spark for attacks on foreign soil.
Western investigators point to real-world consequences: dissidents stabbed in public, schemes to seize activists from U.S. neighborhoods, and shadowy plots that barely failed to materialize. There are named cases that have rattled communities — attacks on journalists in places like Wimbledon, and alleged plans to abduct high-profile critics in Brooklyn. Those incidents fit a pattern of asymmetric, deniable operations intended to frighten and silence opposition figures.
Intelligence services also believe Iran has at times pursued high-profile targets, with allegations that operatives considered hitting prominent U.S. officials and other symbolic assets. The idea is both punitive and deterrent: punish those who speak out and scare others into silence. Even when plots fail, the attempt alone is a strategic success for a regime that thrives on fear and the appearance of reach.
Some experts caution that Tehran’s capacity for a large-scale, conventional retaliation against the West remains limited, especially after recent strikes that reportedly killed many senior commanders. Still, capability is not the only metric; willingness to use proxies, criminal networks, or lone actors makes even limited means dangerous. The regime’s approach often prefers deniability and indirect action, which complicates detection and response for democratic governments.
“Iran would ‘love to be able to take out a US capital asset, such as a base, a warship, a leadership figure.’ He said this desire ‘is as much a religious obligation as an emotional response,’” one former U.K. national security official warned, quoting how ideological and retaliatory impulses can combine. That blunt assessment reflects how some inside Western circles see Tehran’s intent: not merely strategic, but also ideologically driven. When ideology and statecraft align, the risk picture changes.
In the United States there have been particular worries about sleeper cells and proxy networks that could be activated to carry out attacks or intimidate communities after effective strikes inside Iran. The IRGC and affiliated militias already operate across the Middle East and maintain networks of supporters and handlers abroad. That infrastructure makes plausible the notion of targeted actions outside Iran’s borders that are hard to trace back to Tehran.
Western law enforcement and intelligence agencies say they are watching for signs of activation: unexplained travel, sudden contact with known proxies, and communications that echo the embassy messaging that worried British officials. The challenge is balancing civil liberties and open societies against the need to disrupt conspiracies before they become violence. Democracies must get better at spotting the subtle tradecraft used by authoritarian states without turning every diaspora community into a suspect.
Policymakers on the right argue that firm responses are required to deter future attacks and protect citizens abroad, stressing that restraint can be misread as weakness. They say the United States and its allies need clearer defensive postures, better intelligence sharing, and stronger penalties for states that export violence. At the same time, caution is advised: overreaction risks escalating conflict into broader violence that would harm civilians and U.S. interests.
What’s clear is that Iran’s external operations are a persistent national security headache for Western capitals, with real victims and credible plans that have been uncovered. Monitoring, disrupting networks, and holding perpetrators accountable will be essential steps, even as governments weigh the risks of further escalation. The mix of ideology, state direction, and proxy tactics means this issue will stay on the security agenda for the foreseeable future.
