The authors
THE PEOPLE BEHIND THE BOOK
Foto: Sofia Busk
Jan Kaastrup
Cyber Investigator & IT Security Expert
Jan Kaastrup has worked in IT security for more than 25 years. He has investigated over 200 cyberattacks and helped companies and individuals navigate digital crises. He served on Europol's European Cybercrime Centre (EC3) Advisory Board from 2013 to 2018, co-founded the cybersecurity conference cyberhagen.com, and appeared as a cyber investigator in the TV series Jaget vildt.
Foto: Sofia Busk
Michael Sjøberg
Data Hostage Negotiator
Michael Sjøberg is a former Russian language officer who served at the Danish Embassy in Moscow. He now specialises in negotiating with hacker groups on behalf of companies whose data has been taken hostage. His deep knowledge of Russian language, culture and intelligence services gives him a unique position in this field.
Foto: Sigrid Nygaard
Ida Nyegård Espersen
Journalist & Author
Ida Nyegård Espersen is a journalist who spent ten months at Jan Kaastrup's kitchen table interviewing both authors. Her work has made the abstract world of cyber threats tangible and accessible to a broad readership. Invisible Enemy is her account of a new kind of power and a new kind of vulnerability.