$BTC Binance reportedly shared user data with Russian authorities.
* The information allegedly helped identify Yuri Belenkiy, a Russian IT specialist.
* Belenkiy was accused of sending more than $700 to Ukrainian groups.
* Binance allegedly provided his transaction history and personal information, including passport details, phone number and address.
* Belenkiy was arrested in September 2025 and remains in custody awaiting trial.
* Binance says it cooperates with lawful law-enforcement requests.
* Binance had exited the Russian market in 2023, citing compliance concerns.
* The case has raised concerns about user privacy and how crypto exchanges share customer data with authorities.