Technical Director of Security Engineering at @Netflix. Previously Appsec builder/breaker. Spend free time writing music and weightlifting

San Francisco, CA
Joined December 2009
I wrote some strategies for how to be an ally for people managing ADHD in the workplace: link.medium.com/Bibs9k8tbY. Please give it a read and let me know your thoughts!
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I can't believe I'm an hour into trying to get a very permissive CSP policy setup and I am still stuck in violation hell. I empathize with all the developers I've ever asked to set this up. Totally different errors and useful debug information in FF/Chrome debugging this as well.
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Scott Behrens retweeted
Stoked to moderate a #DevSecOps panel at @AppSecCali- @frgx Director of Security Engr @Dropbox, @astha_singhal AppSec Engr Manager @netflix, @dugdep Director of ProdSec @datadoghq, John Heasman Deputy CISO @DocuSign, @Divya_Dw Security Engr Manager @Snap appseccalifornia2019.sched.c…
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Verifying myself: I am arbit on Keybase.io. PfJRpyo3a1phSp_IY39CPPoIWmRMF6MIOnD0 / keybase.io/arbit/sigs/PfJRpy…
"We are now publicly launching our bug bounty program through the Bugcrowd platform to continue improving the security of our products and services while strengthening our relationship with the community." medium.com/netflix-techblog/…
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Test coverage for Scumblr is happening, currently at: 1196 / 4768 LOC (25.08%) covered! Your contributions will be easier with these tests!
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lookup(){ nslookup `echo $1 | awk -F/ '{print $3}'` } #bash put in your bash shell and you now can do >lookup http://<site>.com/whatever
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Exceted to speak at @appsecusa with Andy Hoernecke on Scumblr 2.0 (Dirty Laundry), our soon to be open source tool to automate all things.
Protip: Don't use Timeout with Sidekiq in RoR if you are calling a cli tool that doesn't support timeout, will result in unstable behavior.
Docker + VPN = Not a fun way to spend friday.
Devs: Don't take an appsec pentest personally. Appsec engineers just want to make applications more secure to protect users & stop bad guys.
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Automated web app scanners are struggling with Ajax heavy sites using frameworks like @reactjs and @emberjs. dom navigation/link parsing esp
Tracking XSS propagation over long periods of time w/ Sleepy Puppy? Check out our BurpSuite Extension: techblog.netflix.com/2015/11… @NetflixOSS
@tdvsbl or when a dj fades out the song to say something like "yeah" or "uh uh" 5-10 times a song for the entire set.