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Derek Chamorro

July 25, 2023
How Cloudflare is staying ahead of the AMD vulnerability known as “Zenbleed”

The Google Information Security Team revealed a new flaw in AMD's Zen 2 processors in a blog post today. The 'Zenbleed' flaw affects the entire Zen 2 product stack, from AMD's EPYC data center processors to the Ryzen 3000 CPUs, and can be exploited to steal sensitive data processed in the CPU,

Derek Chamorro,Martin Schwarzl, and Michal Melewski

January 25, 2023
Armed to Boot: an enhancement to Arm's Secure Boot chain

Enhancing the Arm Secure Boot chain to improve platform security on modern systems.

Derek Chamorro and Ryan Chow

May 26, 2022
Cloudflare’s approach to handling BMC vulnerabilities

Cloudflare’s approach to handling firmware vulnerabilities and how we keep our internal data protected

Derek Chamorro and Rebecca Weekly

March 18, 2022
Using Cloudflare One to Secure IoT devices

We asked ourselves: can we use our own products to secure IoT devices themselves — even on the same network as production systems? Using Cloudflare One, the answer is yes.

Molly Cinnamon and Derek Chamorro

November 17, 2020
Anchoring Trust: A Hardware Secure Boot Story

As a security company, we pride ourselves on finding innovative ways to protect our platform to, in turn, protect the data of our customers. Part of this approach is implementing progressive methods in protecting our hardware at scale.

Derek Chamorro and Ryan Chow

February 28, 2020
Securing Memory at EPYC Scale

At Cloudflare, we encrypt data both in transit (on the network) and at rest (on the disk). Both practices address some of the most common vectors used to exfiltrate information and these measures serve to protect sensitive data from attackers but, what about data currently in use?

Derek Chamorro and Brian Bassett

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