David Harley

David Harley

Senior Research Fellow


Education? Academic background in modern languages, social sciences, and computer science.

Highlights of your career? I was a late starter (1986) as an IT professional, beginning at the Royal Free Hospital, then with the Human Genome Project (1989), then at Imperial Cancer Research Fund (1991-2001), where I wrote/co-wrote/edited a number of Internet FAQs and my first articles on programming and security. I presented my first conference papers in 1997 (at Virus Bulletin and SANS). In 2001 Osborne published Viruses Revealed (co-written with Robert Slade and Urs Gattiker): VR and the later AVIEN Malware Defense Guide (Syngress) – to which Andrew Lee also contributed – are probably the best known of my books. When I rejoined the UK’s National Health Service in 2001, I ran the Threat Assessment Centre and was the go-to person nationally for malware issues. I left to work as a freelance author and consultant in 2006, which is also when I began to work with ESET.

Position and history at ESET? Senior Research Fellow at ESET N. America. Primarily, I’m an author and blogger, editor, conference speaker, and commentator on a wide range of security issues. Like the rest of the industry, they put up with me because I’ve been around so long.

What malware do you hate the most? Malware is just code. It’s malicious people I detest. While I’ve no love of scammers, I can see that it’s easier to be honest in a relatively prosperous environment – if there is such a thing anymore – and that cybercrime can be driven by an economic imperative. But I have nothing but contempt for those sociopaths who cause harm to others for no reason except that they can.

Favorite activities? The guitar (I still gig and record when time allows), other people’s music. I love opera but don’t attempt to sing it. Photography, art, poetry, country walking – well, ambling is about as much as I can manage at my age – good food and wine, good television when I can find it...

What is your golden rule for cyberspace? Scepticism is a survival trait: don’t assume that anything you read online is gospel truth, even this adage.

When did you get your first computer and what kind was it? Amstrad PCW (primarily a word-processor) in 1986. What else would you expect a not-very-rich author to buy in 1986? :)

Favorite computer game/activity? Extra-curricular writing (blogging, verse and lyrics, articles). Digital photography and miscellaneous artwork.


893 articles by David Harley

ESET research

AMTSO press release: approved Testing Guidelines

AMTSO press release: approved Testing Guidelines

ESET research

AMTSO press release: approved Testing Guidelines

David Harley10 Nov 20081 min. read


ESET research

Data Leakage, Politics, the Universe and Everything...

Data Leakage, Politics, the Universe and Everything...

ESET research

Data Leakage, Politics, the Universe and Everything...

There is no way of eliminating the risk of data loss completely because systems, however good they are, are implemented, administered and used by human beings.

David Harley10 Nov 20084 min. read


ESET research

Hoax: "Life is beautiful"

Hoax: "Life is beautiful"

ESET research

Hoax: "Life is beautiful"

When I get a chain letter like this, I don't usually respond to everyone else who received it, even when it's a hoax (as it usually is)...

David Harley05 Nov 20083 min. read


ESET research

Election Malware and Social Engineering

Election Malware and Social Engineering

ESET research

Election Malware and Social Engineering

David Harley05 Nov 20081 min. read


ESET research

The Morris Worm: a Malware Prototype

The Morris Worm: a Malware Prototype

ESET research

The Morris Worm: a Malware Prototype

In "Viruses Revealed", Robert Slade and I said that ""In many ways, the Internet Worm is the story of data security in miniature."

David Harley02 Nov 20082 min. read


ESET research

AMTSO: Raising Testing Standards

AMTSO: Raising Testing Standards

ESET research

AMTSO: Raising Testing Standards

I just came got back from Oxford (that's the one in the UK, by the way), where the Anti-Malware Testing Standards Organization held its latest two-day meeting.

David Harley01 Nov 20082 min. read


ESET research

Giving (Samples) to Charity

Giving (Samples) to Charity

ESET research

Giving (Samples) to Charity

Recently we noticed a thread in a forum associated with a free security product, originating in an open letter to a well-known tester, asking him to donate his sample set for the improvement of the product.

David Harley28 Oct 20082 min. read


ESET research

Asking for samples for testing

Asking for samples for testing

ESET research

Asking for samples for testing

David Harley17 Oct 20084 min. read


ESET research

Testing Internet Security Suites: More Questions than Answers...

Testing Internet Security Suites: More Questions than Answers...

ESET research

Testing Internet Security Suites: More Questions than Answers...

David Harley14 Oct 20083 min. read