Dean Armstrong QC

4 Field Court, Grays Inn
London, WC1R 5EF

Tel: 020 7421 8000

Fax: 020 7421 8035

Video Conferencing Available

Dean Armstrong QC

Top-Rated Criminal Defence Barrister

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 Chambers & Partners  |  Legal 500

Dean Armstrong QC has earned an enviable reputation as being a top-rated cybercrime and hacking barrister, and is co-author of the premier text book on the subject.  He is one of a very few select group of legal experts in this developing field, and is thus able to represent both victims and those accused of perpetration.



Top-Rated Cybercrime and Hacking Barrister | Dean Armstrong QC

Top Rated Cybercrime Barrister

Because cybercrime can often have a devastating impact on victims, for example those whose systems have been hacked or otherwise interfered with, as well as for those accused of perpetration, it is important to use a barrister who is an expert in the field.

Dean’s interest, coupled with his commercial experience and presentational ability, makes him ahead of the game in this field and uniquely placed to give clear cogent advice to those affected or potentially affected in this new area.

Top Rated Hacking of Intellectual Property Barrister

Dean has previously advised on the criminal consequences of commercial hacking: An intellectual property action involving a multinational blue chip corporation whose claim against Dean’s then client ran in to multi millions of pounds.

Dean successfully advised on the matter so that his client faced no adverse disciplinary consequences when the matter was ultimately settled.

This case brought Dean’s unique combination of civil and criminal litigation, City experience and knowledge of intellectual property matters in to sharp focus and enabled a hugely successful result to be achieved

Dean is often retained in circumstances where companies and/or individuals seek advice over matters which are not, at that stage, subject to any formal investigation.

Dean’s approach is to pro-actively address and engage the matter, rather than waiting for “a knock on the door”. In this way, should the worst happen and a formal investigation ensue, internal or external - a tactically judged path will have been taken by a top-rated cybercrime barrister.

Other Notable Cybercrime Case Example




Dean Armstrong QC speaking about his approach to Appeals.

See how Dean Armstrong QC approaches asset confiscation.


Dean speaks about his experience and approach as a criminal defence barrister.

Using his financial City background, Dean Armstrong QC, speaks about Insider Trading.


With his unique Financial Institution background, Dean speaks about Money Laundering.


See Dean speak about building a powerful defence for those accused of VAT Fraud.


A class act with devastatingly
effective powers of cross-examination
The Legal 500

To contact one of the UK’s top-rated cyber- crime & hacking barristers, click here or call

0207 421 8000

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