Aleksanteri Kivimäki

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Aleksanteri Tomminpoika Kivimäki (formerly Julius Aleksanteri Tomminpoika Kivimäki; born 22 August 1997), known online as zeekill, is a Finnish hacker and cybercriminal. In 2024, he was convicted for one of Finland's largest cybercrimes, the Vastaamo data breach. He first gained attention as a teenager, when he was linked to the hacking collective Lizard Squad and convicted in 2015 on over 50,000 counts for computer intrusions. Kivimäki hacked into Vastaamo's database in 2018, gaining access to the treatment records of about 33,000 patients. In 2020, he demanded ransom payments from both the company and individual patients, leading to charges of over 21,000 counts of attempted aggravated extortion, nearly 9,600 counts of aggravated invasion of privacy, and 20 counts of aggravated blackmail. He was arrested in February 2023 in France under a false identity and extradited to Finland. In April 2024, the Western Uusimaa District Court sentenced him to six years and three months in prison. He...

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