Polish police dismantled a major group of hackers that was behind several criminal activities, including malware distribution, SIM swapping, banking fraud, and even making bomb threats at the behest of paying customers. The group, composed of four suspects, in believed to be among the most active groups in Poland. The arrests are the result of an investigation that begun in May 2019, when the group sent a first bomb threat to a school in .czyca after being paid by an individual named Lukasz K The group is behind several bomb threats that targeted multiple organizations, including the Western Railway Station in Warsaw and 1,066 kindergartens across the country.”]
Source: https://securityaffairs.co/wordpress/108720/cyber-crime/polish-police-group-hackers-dismantled.html