A 20-year-old Bulgarian employee of a cybersecurity company has been detained as a suspect who is allegedly behind the hacking of the national revenue agency, an attack that impacted 5 million out of the 7 million population in Bulgaria through the leakage of both personal and corporate data. Prime Minister Boyko Borissov later revealed that the suspect was simply trying to prove his computer skills, but that he should have worked for the state instead of causing harm.
Reference:
https://www.voanews.com/europe/bulgaria-detains-cybersecurity-employee-tax-data-hacking/