Prosecutors have charged two workers at a cybersecurity company with terrorism as part of an investigation into Bulgaria’s biggest-ever data breach, a lawyer for the defendants said on Wednesday.
Georgi Yankov, a manager at the company Tad Group, has been charged and released from custody.
Earlier charges of crime against information systems against Kristian Boykov, a 20-year-old cybersecurity worker at the same company, have been changed to terrorism, he added.
On Tuesday, police raided the offices of Tad Group, seizing computers and detaining a manager over last month’s cyber-attack on the tax agency, in which nearly every Bulgarian adult’s personal data and financial records were compromised.
Boykov was conditionally released from custody last Wednesday but banned from leaving the country.
Prosecutors have said they believe Boykov did not act alone and were looking for others in connection with the attack.
Prosecutors believe Boykov was behind an email sent from someone purporting to be a Russian hacker who was offering stolen tax agency files to local media. They do not currently believe the attack came from abroad.