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News
Can Standard Wildcard SSL suit protection for multiple subdomains?
7+ hour, 39+ min ago (344+ words) Once installed, a Standard Wildcard certificate automatically covers any subdomain created under the primary domain, whether it’s blog.example.com or shop.example.com. This will enable companies to roll out new sections of their website without having to wait…...
Russian Hackers Targeted Emails of American Nuclear Scientists and Defense Contractors
15+ hour, 9+ min ago (239+ words) Over the past year, a group of Russian hackers has been conducting a cyberespionage campaign targeting American nuclear scientists, defense contractors, and government officials. This is stated in a joint advisory from U.S. intelligence agencies and more than a dozen allied…...
Secure DNS: The Trade-off of Privacy for Performance
16+ hour, 40+ min ago (1307+ words) Last year, I noticed a significant increase in DNS resolution times for a critical service of one of my clients. Initially, I suspected a problem at the network layer, but detailed investigations revealed that the root cause was the newly…...
UK and partners expose Russian state-backed 'zero-click' phishing attack
1+ day, 12+ hour ago (367+ words) The malicious campaign is driven by an advanced persistent threat group known as LAUNDRY BEAR, which is actively targeting organisations across Western government and commercial sectors to harvest sensitive email communications covertly. The primary target of the operation is the…...
How to Check SPF, DKIM, and DMARC Records in Python
1+ day, 6+ hour ago (289+ words) If your app sends email — transactional or marketing — three DNS records decide whether it lands in the inbox or the spam folder: SPF, DKIM, and DMARC. Here's how to look them up and sanity-check them in Python, no third-party API…...
BGP ORIGIN attribute manipulation and its impact on the Internet
1+ day, 11+ hour ago (572+ words) The ORIGIN attribute indicates how a route was injected into BGP — not to be confused with the origin AS that indicates which AS announced a route. It has three possible values: (0) IGP: Indicates the route is interior to the originating…...
Cloudflare Internal DNS puts public and private DNS on one policy engine
1+ day, 17+ hour ago (620+ words) Enterprises typically operate separate systems for internal and external DNS because the two serve different audiences. Public DNS resolves names for services meant to be reached from the internet. Private DNS resolves internal resources, such as databases and internal applications,…...
Split-Horizon DNS: One Name, Two Answers, and the Server Decides by Who's Asking
1+ day, 12+ hour ago (363+ words) This post is part of Protocol Lab, a free, hands-on series for learning networking protocols by building and breaking them in a container lab. All the lab material — topologies, configs, and scripts — lives in the repo: github.com/pathvector-studio/protocol-lab....
DNS Round-Robin: The Cheapest Load Balancer Is Three A Records and a Rotating Answer
1+ day, 12+ hour ago (487+ words) This post is part of Protocol Lab, a free, hands-on series for learning networking protocols by building and breaking them in a container lab. All the lab material — topologies, configs, and scripts — lives in the repo: github.com/pathvector-studio/protocol-lab....
Hackers use DNS poisoning on hotel Wi‑Fi to steal Microsoft 365 accounts
1+ day, 14+ hour ago (257+ words) Threat actors are compromising hotel and conference center Wi-Fi gateways to redirect travelers to fake Microsoft login pages and steal corporate accounts. The campaign has been active since at least June 2026 and appears to reuse techniques previously associated with the…...