A court in Moscow has extended the pretrial detention of the head of a leading Russian cybersecurity company who was arrested last September on charges of state treason.
An official for the Lefortovo district court told the state-controlled TASS news agency that it had ruled on May 27 that Ilya Sachkov's pretrial detention was being prolonged until at least July 28.
Sachkov is the founder of Group-IB, a company known for its work in tracking down hackers and fighting theft and cyberfraud.
Sachkov, 35, is one of a group of prominent people, including scientists and cybersecurity officials, to be arrested in Russia on treason charges in recent years. Moscow has faced numerous allegations of being behind cyberattacks on Western countries -- which it has consistently denied.
Investigators said Sachkov was suspected of passing classified information to a foreign country. No other details were given by officials.
Sachkov was arrested and charged after police searched his company's offices in Moscow on September 28. He denies any wrongdoing.
Group-IB, founded in 2003, has grown markedly in recent years as cybercrimes increase globally.
In addition to Moscow, the company has offices in Singapore, London, New York, and Dubai.