I'm a world-wide security evangelist, meaning I write and speak about hackers, cryptography, fraud, malware and all that interesting stuff.

I've spoken at over 30 conferences on all six developed continents. Some of my favorite engagements were speaking at RSA Europe in Amsterdam, InfoSec in London and Gartner Data Center in Las Vegas

I write a bi-weekly column at SecurityWeek, and have had the good fortune to write for DarkReading and SC Magazine and Network World.

They call me the "one-take wonder" in the studio, because I've done so many videos that I just do it in one take anymore.

I'm a fly-fisherman, a baseball fan and a craft beer enthusiast.

My Memoirs...


Jan. 15, 2013 

Get in the Closet #2

I met Enn in the second year after my divorce. A freckled, buxom redhead, she was intelligent, emotional, and about ten years younger than me. She didn’t have many friends, and she was cautious and suspicious about dating. Like many redheads, Enn had a mean streak. Her husband, having discovered that he had a thing for Asian girls, had abandoned her and their young son. She ended u...

[ read more ] tags:  loveland dating

Welcome to the Vanity Site of David William Holmes

June 3, 2015:  tags:  in-the-news infosec

InfoSecurity Europe 2015 - David Holmes

TechWeekEurope's Michael Moore speaks to David Holmes, Senior Security Evangelist for F5 Networks, at InfoSecurity Europe 2015


Jan. 17, 2018:  tags:  SSL-TLS cryptography security-week

Stack Ranking SSL Vulnerabilities: The ROBOT Attack

My latest piece for SecurityWeek is an analysis of the ROBOT attack against TLS stacks. Check out how many of these I've done now, it's crazy.


Jan. 4, 2018:  tags:  infosec hackers

MIRAI IS ATTACKING AGAIN, SO WE’RE OUTING ITS HILARIOUS, EXPLICIT C&C HOSTNAMES

Slightly explicit content here. Was talking with my colleague Justin, and he was saying how the latest list of command-and-control hostnames for the Mirai botnet contained some hilarious examples like "cnc.smokemethallday.tk". We thought it would be a good for a laugh to do some analysis on the names where the servers are hosted from.


Nov. 7, 2017:  tags:  SSL-TLS cryptography in-the-news

What happens to Encryption in a Post Quantum World?

Debbie Walkowski interviewed me about my 'Post-Quantum' report. Consider this the cliff notes to that larger paper.


Nov. 3, 2017:  tags:  SSL-TLS security-week

Stack Ranking SSL Vulnerabilities: DUHK and ROCA

All, all those branded SSL vulnerabilities. True to my word, I've continued writing articles comparing them to each other so you can have some idea about how much to freak out. This article adds two more; the DUHK and ROCA vulnerabilities.


Oct. 31, 2017:  tags:  in-the-news infosec

Security Now! Reads our entire REAPER article on their podcast

Never thought I'd see this day! THE Steve Gibson of the Security Now! podcast really liked the REAPER piece that Justin Shattuck and I wrote. He liked it so much he basically read it over the air on podcast episode 635 (toward the end). Still can't believe it, how cool is that?


Announcements:

Task Completed
Fix the footer May 18, 2017
Split Writing in to fiction, essays and more Sept. 16, 2016
Show associated tags in the content lists Sept. 16, 2016
Main page should show recent content None
in-the-news vs tag incorrect (tag is correct) None


Task List

Task Status
Hookup date selectors in fishing, writing, photos Medium
Secure this site with an AWS certificate Medium
Bring in fishing reports from Tumblr Low
Bring in fishing reports from flyfishsnoqualmie Medium
Add essay about medicine to writing page Low
Add Headshots gallery Medium
Put manila article on there Medium
Move changelog to nav bar Medium
Where is Bad Art in writing? High
Fix RSA2015 Low