Russia sanctions British teenager who exposed A7A5 crypto laundering network

Alexander Browder, the 17-year-old British student and son of Kremlin critic Sir Bill Browder, was added to Russia’s sanctions list on Tuesday, June 2. 

The judgment came after his research contributed to UK government efforts to dismantle a cryptocurrency network accused of financing Russia’s war in Ukraine. 

Who is Alexander Browder?

Alexander Browder, a British teenager, spent 18 months investigating A7A5, a ruble-pegged stablecoin that Western governments claim acts as a financial pipeline for sanctioned Russian entities. 

His research was featured in a report published by the Henry Jackson Society titled “Confronting the Illicit-Finance Hydra in Crypto Markets,” which analyzed 164 instances of cryptocurrency laundering spanning two decades, according to his Global Cryptocurrency Laundering Database website.

Browder also counseled ministers in the UK on their latest round of sanctions targeted at individuals and companies linked to A7A5.

Speaking on the sanctions placed on him, Browder told the Metro that “The sanctions don’t intimidate me. It tells me I’ve touched a nerve with my work.” He called the Kremlin’s move “unprecedented” and said he would continue his research “with more rigor.”

On X, Browder described himself as “the first high school student in the world to ever be sanctioned by an authoritarian regime for uncovering corruption.”

What is A7A5, and why does it matter to Russia?

A7A5 is a stablecoin pegged to the Russian ruble and issued by Old Vector, a firm based in Kyrgyzstan. The token is hosted on the Tron and Ethereum blockchains and launched in early 2025.

According to a government press release from May 26, the UK Foreign Office described A7A5 as a component of a network “designed to bypass Western sanctions” that reportedly processed over $90 billion in transactions last year. As a result, the Foreign Secretary Yvette Cooper also shared that the UK is targeting the “infrastructure that underpins” Russia’s war economy.

Browder’s research estimated that approximately $350 billion worth of illegal funds had been laundered by rogue states, including Iran and North Korea, with about half of that figure allegedly flowing through the A7A5 network.

Blockchain analytics firm Elliptic also reported back in January that A7A5 processed more than $100 billion in transactions within its first year of operation, similar to previous reports from Cryptopolitan when it covered EU sanctions aimed at the stablecoin.

Sanctions are flying around over the Ukraine invasion

Browder was one of the five British citizens added to Russia’s “stop list” on Tuesday. According to TASS, Russia’s state news agency, the other individuals sanctioned include Washington Post journalist Catherine Belton, CTG managing director Alice Mary Laugher, Chelsea Group founder Richard Nicolas Westbury, and The i Paper journalist Richard Holmes.

Russia’s Foreign Ministry accused all five of “circulating defamatory speculations and false information” and called on London to abandon what it called “aggressive anti-Russian steps.”

The timing follows a series of Western moves trying to counter Russian efforts to evade sanctions through cryptocurrency. According to a UK government announcement, about 18 new designations were introduced on May 26 that target entities connected to A7A5, specifically including a bank in Kyrgyzstan suspected of enabling payments and a cryptocurrency exchange accused of channeling more than $1.5 billion to Moscow.

In April, the European Union implemented its 20th sanctions package, banning all Russia-based cryptocurrency service providers. The move specifically targeted A7A5 as well as another ruble-backed stablecoin known as RUBx.

Last month, Reuters reported that Kyrgyzstan (the country where A7A5’s issuer is registered), shut down 50 companies due to concerns over sanctions evasion. While its Ministry of Justice justified these closures, claiming they were “high sanctions risk,” it did not publicly disclose the specific names of the affected firms.

What will happen to A7A5? 

Browder told GB News that Moscow’s retaliation could make individuals “more frightened to cooperate with A7A5,” potentially undermining the network’s operations. However, whether that prediction comes true or not will depend on the level of enforcement.

Nonetheless, the United Kingdom, the European Union, and their allied governments have clearly indicated a commitment to continuously tightening restrictions on cryptocurrency-based evasion channels as long as the war in Ukraine continues.

Russia, on the other hand, warned that “work on expanding the Russian stop list in response to the unfriendly actions of the British authorities will continue,” according to the Foreign Ministry statement shared by TASS.