My Substack Article citations

y federal agencies, local governments, and national security operations.

xAI has continued to expand its government work. The new offering includes custom national security tools, AI-powered science and health applications, and cleared engineering support for classified environments.

If Musk was directly involved in decisions to use Grok, it could violate a criminal conflict-of-interest statute which bars officials -

Egress gateways provide a way to route all outbound traffic from certain pods through a specific node with a predictable IP address. This predictable IP can be useful for scenarios where the traffic destination requires a known source IP, for instance, when working with legacy systems or firewall rules.

All endpoint IPs and corresponding identities are mirrored to the kvstore by the agent on the node where the endpoint is launched, to allow peer nodes to configure egress policies to endpoints backed by these IPs.

All endpoint IPs and corresponding identities are mirrored to the kvstore by the agent on the node where the endpoint is launched, to allow peer nodes to configure egress policies to endpoints backed by these IPs.

Because eBPF runs inside the Linux kernel, Cilium security policies can be applied and updated without any changes to the application code or container configuration.

This shift toward highly dynamic microservices presents both a challenge and an opportunity in terms of securing connectivity between microservices. Traditional Linux network security approaches (e.g., iptables) filter on IP address and TCP/UDP ports, but IP addresses frequently churn in dynamic microservices environments.

An additional challenge is the ability to provide accurate visibility as traditional systems are using IP addresses as primary identification vehicle which may have a drastically reduced lifetime of just a few seconds in microservices architectures.

Cilium retains the ability to transparently insert security visibility + enforcement, but does so in a way that is based on service / pod / container identity (in contrast to IP address identification in traditional systems

Overlay networking: encapsulation-based virtual network spanning all hosts with support for VXLAN and Geneve. It works on almost any network infrastructure as the only requirement is IP connectivity between hosts which is typically already given. Native routing mode: Use of the regular routing table of the Linux host. The network is required to be capable of routing the IP addresses of the application containers. It integrates with cloud routers, routing daemons, and IPv6-native infrastructure. Flexible routing options: Cilium can automate route learning and advertisement in common topologies such as using L2 neighbor discovery when nodes share a layer 2 domain, or BGP when routing across layer 3 boundaries.

Cilium Cluster Mesh enables secure, seamless connectivity across multiple Kubernetes clusters.

router_asn (integer) – Autonomous System Number (ASN) identifying a BGP virtual router instance. If not specified, all virtual router instances are selected.

GET /node/ids

/fqdn/cache

“When you follow two separate chains of thought, Watson, you will find some point of intersection which should approximate to the truth.” – The Disappearance of Lady Frances Carfax

“Any truth is better than indefinite doubt.” – The Yellow Face

“The world is full of obvious things which nobody by any chance ever observes.” – The Hound of the Baskervilles

“We balance probabilities and choose the most likely. It is the scientific use of the imagination.” – The Hound of the Baskervilles

“It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts.” – A Scandal in Bohemia

Totally agree, I’m a physician in real life and another phrase that keeps coming back to my mind is “There is nothing more deceptive than an obvious fact” how many diagnosis have been missed by that.

I do not think Musk’s stated rationale has any additional credibility because it was repeated by anonymous Treasury officials. It's important to understand that “improper” is in the eye of the beholder, and the danger of operational access to the payments system is precisely that there are very little safeguards for its improper use or manipulation.

All thought read only access was extraordinarily dangerous to the country. Unfortunately, my sources also tell me that the subsequent anonymous sources mainstream journalists reported who worked to downplay the situation are not accurate.

Marko Elez, has not only read but write access to BFS servers.

The issue is understanding the specific physical limitations of the system, the way that it interacts with the “Business Logic” of the code and a million other contextual factors.

We are in such a catastrophic situation I do not have the words to describe. It is getting worse and very little is being done. Lawsuits have been launched to stop this on privacy grounds, but we need so much more. Strongly worded letters from congress are not enough.

Tankus said he's been hearing from sources inside the agency who feel there's no one left in the federal government to whom they can report security breaches.

In normal times, I would report insider threats to the appropriate security channels inside the government, but there is no one left for me to report it to."