there is a shit-ton of hacker cons outside of the US, the most famous one being the CCC (Chaos Computer Club Convention) in Leizpieg/Hamburg, Germany just befor

there is a shit-ton of hacker cons outside of the US, the most famous one being the CCC (Chaos Computer Club Convention) in Leizpieg/Hamburg, Germany just before new year's eve. You mention Dmitry Sklyarov but more recently Marcus Hutchins (MalwareTech) has been also arrested by the FBI following its appearance at Blackhat or Defcon