Black hats

Aleksanteri Kivimäki

Finnish cybercriminal

1997 – present · Finland

David Schrooten

Dutch computer hacker

Electron (computer hacker)

Australian computer criminal (born 1969)

1969 – present

Elliott Gunton

British cybercriminal (born 1999)

1999 – present

Hamza Bendelladj

Algerian hacker (born 1988)

2014 – present

Hiroshi Maeue

Japanese serial killer (1968–2009)

1968 – 2009 · Japan

IntelBroker

Black hat hacker

Jon Chang Hyok

North Korean military intelligence officer

Junaid Hussain

ISIL propagandist and hacker (1994–2015)

1994 – 2015 · United Kingdom

Leonard Rose (hacker)

American hacker (born 1959)

1959 – present · United States

Mathew Bevan

British computer hacker (born 1974)

1974 – present · United Kingdom

Max Butler

Computer security consultant in the US

1972 – present · United States

Rescator

Ukrainian hacker

Roman Seleznev

Russian computer hacker

1984 – present · Russia

Takahiro Shiraishi

Japanese serial killer (1990–2025)

1990 – 2025 · Japan

Vladislav Horohorin

Ukrainian-Israeli hacker and credit card trafficker

1982 – present · Israel

Walter Delgatti Neto

1989 – present · Brazil

Yevgeniy Nikulin

Russian computer hacker (born 1987)

1987 – present · Russia