Picture of Tom De Cordier

Tom De Cordier


CMS DeBacker
Chaussée de La Hulpe 178
1170 Brussels
Languages Dutch, French, English

Before joining CMS Tom worked at Allen & Overy where he started his career in October 2000, was then promoted to senior associate in May 2007 and to counsel in May 2011.

Tom is a seasoned technology lawyer with a strong focus on data privacy law, technology, media and communications law, technology-related IP and life sciences. 

Clients praise him for his commercial acumen and his pragmatic and down-to-earth style.

His practice covers a wide range of advisory, transactional and litigation work in international and domestic matters relating to data privacy, TMC and life sciences.

Tom is ranked tier 1 in Legal 500’s latest shortlist of leading practitioners in EU data protection. Chambers Europe ranks Tom as “Up and coming” in the category Technology, Media & Telecommunications in Belgium. Corporate International Magazine recently recommended Tom as “rising star of the year in Belgium” for telecommunications law.

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"Tom de Cordier advises on cross-border telecoms regulatory matters and data protection. Clients regard him as a 'natural contact person for data protection in Belgium' and describe him as 'hands-on, pragmatic and solution-orientated'."

Chambers Europe, 2018

‘Excellent’ practice head Tom De Cordier ‘provides comprehensive regulatory and business advice’.

Legal 500, 2018

“[Tom De Cordier is] very approachable and clear in what the necessary steps are."

Feedback from a client - Chambers Europe, 2017

Relevant experience

  • From 2012 until 2014 Tom was a member of the European Advisory Board of the IAPP (the International Association of Privacy Professionals)
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  • 1999 - University of Ghent, UGent (Master in law, 1999)
  • 2000 - University of London (LL.M. in Computers & Communications)
  • 2000 - Bar admission (Brussels, Belgium)
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Im­plic­a­tions of a Di­git­al Single Mar­ket
A con­fer­ence re­port
CMS Net­work Shar­ing Study 2016
Shar­ing gath­ers pace


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CMS Bel­gi­um as­sisted Nor­d­ic Info and XTN with the sale...
04 Jun 19
Us­ing cook­ies without breach­ing the rules – a state...
EU Ad­voc­ate Gen­er­al gives In­ter­net cook­ie opin­ion that could im­pact...
Ad­voc­ate Gen­er­al Ma­ciej Szpunar, a seni­or leg­al ad­viser to the EUs Court of Justice (CJEU), de­livered an opin­ion (Case C‑673/17) in a case con­cern­ing the ques­tions: should web­sites ac­tu­ally give users the choice to ac­cept cook­ies and to what ex­tent? The Ad­voc­ate.
Septem­ber 2018 News­let­ter
Bel­gi­um's pri­vacy watch­dog pub­lishes guid­ance on the no­tions of con­trol­ler...
Re­cently, the Bel­gian Data Pro­tec­tion Au­thor­ity (“DPA”) pub­lished guid­ance on con­trol­ler and pro­cessor con­cepts (see ori­gin­al doc­u­ments in French and in Dutch), re­fresh­ing the dis­tinc­tion between these two con­cepts and their im­plic­a­tions.
Data Law Nav­ig­at­or | Over­view
In­form­a­tion on Data Pro­tec­tion and Cy­ber Se­cur­ity laws...
New cam­era sur­veil­lance rules
The re­vised Bel­gian Sur­veil­lance Cam­era Act (“Act”) entered in­to force on 25 May 2018, at the same time as the GDPR. The Act ap­plies to all cam­er­as that mon­it­or and su­per­vise an area for the pur­pose of pre­vent­ing, es­tab­lish­ing or de­tect­ing crime or dis­turb­ance.
March 2018
Fi­nal Count­down to GDPR
We­bin­ar Re­cord­ings
New Bel­gian data pro­tec­tion law has come in­to force
The Bel­gian Law of 30 Ju­ly 2018 on the pro­tec­tion of nat­ur­al per­sons with re­gard to the pro­cessing of per­son­al data (“Law of 30 Ju­ly 2018”) entered in­to force on 5 Septem­ber 2018. This ex­tens­ive piece of le­gis­la­tion ab­ol­ishes the Law of 8 Decem­ber 1992 on pri­vacy.
Septem­ber 2017 News­let­ter
EU-US Pri­vacy Shield un­der High Scru­tiny
On 18 Septem­ber 2017, US Sec­ret­ary of Com­merce Wil­bur Ross and European Com­mis­sion­er Vĕra Jour­ova will launch the first an­nu­al re­view of the EU-US Pri­vacy Shield agree­ment (“Pri­vacy Shield”). The re­view will be a two-day ex­er­cise where European Com­mis­sion rep­res­ent­at­ives.
April 2017 News­let­ter