Britain has imposed sanctions on 12 individuals and entities linked to Iran, citing alleged involvement in hostile activity, attack planning and financial services connected to efforts to destabilize the UK and other countries.
The measures announced on Monday include asset freezes, travel bans and director disqualification orders. The UK government said those targeted include alleged members and associates of the Zindashti criminal network, exchange houses and financial operators accused of helping move funds for Iranian-linked activity.

British authorities said the network was involved in threatening, planning or carrying out attacks against people and assets in the UK and overseas. Iran has repeatedly denied involvement in attack plots in Britain and other countries.
The sanctions come as UK police continue investigating possible Iran links to a series of arson attacks on Jewish targets in London. Those incidents led to counter-terrorism inquiries and fresh warnings about hostile activity tied to foreign states.
The sanctions focus partly on the Zindashti criminal network, which Western governments have linked to alleged assassination and kidnapping plots against Iranian dissidents.
The group’s alleged leader, Naji Ibrahim Sharifi-Zindashti, was previously sanctioned by the UK and the United States. Officials have accused the network of working with Iran’s intelligence apparatus, while the European Union has also imposed related measures.
The latest UK action targets people accused of direct involvement in hostile activity, along with individuals and companies accused of helping provide financial or material support.
The government said the measures are intended to restrict the ability of sanctioned parties to access funds, travel to Britain or operate through UK-linked business channels.
The designations cover individuals and entities connected to Iran, Turkey, Azerbaijan and other jurisdictions. UK officials said the network used international channels to support activity that threatened Britain and its allies.
The UK also sanctioned members of the Zarringhalam family and affiliated exchange houses accused of laundering funds through a shadow banking system.
Authorities said the financial network used front companies in the United Arab Emirates and Hong Kong to move money despite restrictions. The UK said these services helped Iranian-linked groups access funds while avoiding international controls.
Reports tied to the case said two UK-registered exchanges processed more than $1 billion in USDT on Tron, with illicit flows reaching 87% of transactions by 2024. The data adds to scrutiny of how stablecoins and offshore payment channels can be used in sanctions evasion and money laundering cases.
The UK government said the sanctioned financial entities provided services to individuals and groups connected to destabilizing activity. These networks allegedly helped move funds for groups linked to Iranian-backed operations.
Stablecoins such as USDT are widely used for fast cross-border transfers. Regulators have increased attention on their role in illicit finance because they can move quickly across platforms, wallets and jurisdictions.
The sanctions, however, do not mean all crypto activity linked to stablecoins is unlawful. They show that authorities are focusing on financial operators accused of knowingly supporting restricted groups or helping evade sanctions.
The sanctions arrive as the UK works toward a broader crypto regulatory regime. Authorities are preparing rules covering crypto trading platforms, intermediaries, lending, staking, custody, stablecoins and some decentralized finance activity.
The Financial Conduct Authority, as a result, is consulting on licensing standards for crypto firms. Proposed rules include requirements for trading venues, transparency, best execution, operational risk controls and protections against market abuse.
Stablecoins and custody are central parts of the planned framework. Regulators are also considering how rules should apply where there is identifiable control in DeFi, while activity that is truly decentralized may be treated differently.
The UK plans to finalize its crypto framework in 2026 and bring the regime into force by 2027. The approach is meant to support regulated digital asset markets while giving authorities stronger tools to monitor financial crime risk.
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