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Erik Jonkman


Atrium - Parnassusweg 737
1077 DG Amsterdam
PO Box 94700
1090 GS Amsterdam
Languages Dutch, English

Erik Jonkman is an advocaat in our IP / TMC Practice Group and heads the Privacy & Cybersecurity Team of CMS in the Netherlands. He specializes in matters that involve information technology and data. 

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"Jonkman is particularly recommended for data breach matters and cyber incidents."

The Legal500 EMEA, 2022

Relevant experience

  • Providing 24/7 incident response in a high amount of domestic and cross-border cyber incidents, including data theft, ransomware attacks, CEO fraud and IT system failures (2022)
  • Representing an IT supplier in a high-profile financial outsourcing dispute (2020)
  • Advising a wide variety of key clients on GDPR-compliance in relation to COVID-19, including international data centres, manufacturers and hotel chains (2021)
  • Representing a major logistics company in an enterprise resource planning software licensing dispute (2021)
  • Reviewing cyber insurance policies (2020)
  • Representing a public transport company regarding the purchase, development and implementation of mobility-as-a-service software (2020)
  • Representing a financing company in a complaint procedure before the Dutch Data Protection Authority regarding the right to be forgotten (2020)
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Memberships & Roles

  • Dutch Association of Information Technology and Law (NVvIR)
  • International Association of Privacy Professionals (IAPP)
  • Privacy Law Association (VPR)
  • Copyright Law Association (VvA)
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  • Information law, Grotius Academy for Post-Graduate Law Studies
  • Dutch Law (Internet, Intellectual property & ICT), VU Amsterdam
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The Chan­ging Face of Cy­ber Claims
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Data pro­tec­tion and se­cur­ity
Ex­pert leg­al ad­visers
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CMS ad­vised Korean in­vestor Hana Al­tern­at­ive As­set Man­age­ment on the ac­quis­i­tion...
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