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Google and data: hackers used phone calls, phishing websites, and "meticulous" tactics to target dozens of US PE firms and other businesses over the past month (Reuters)

Ransom-seeking hackers who use phone calls to compromise their victims targeted dozens of prominent U.S. financial institutions …

We haven't written up this one. Techmeme has the full story — the link below goes straight to it.

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Where exactly is the card in this photo? Image segmentation model inside a maxed-out lambda container

A crooked phone photo goes in, a clean straight card image comes out - no GPU, and nothing running when nobody uploads. It runs on the biggest lambda AWS sells, and the biggest is not the same as…

  • BiRefNet-General-Lite model used for image segmentation
  • Memory constraints addressed by reducing container memory and resizing images
  • Model chosen for efficient CPU-based segmentation in Lambda container

JWT auth without the confusion

JWT auth without the confusion JWTs are everywhere, but they're often misunderstood. Let's strip away the jargon and see what they actually are, how they work, and how to use them safely in your apps.

  • JWTs consist of three segments: header, payload, and signature
  • Authentication involves login, token creation, and token inclusion in requests
  • Avoid storing tokens in localStorage due to XSS vulnerability

Building Resilient Real-Time Systems: WebSockets, Redis, and High Availability Architectures

Originally published on tamiz.pro . Building real-time systems that are not only fast but also resilient and highly available is a critical challenge in modern software architecture.

  • WebSockets provide persistent bidirectional communication for real-time applications
  • Redis serves as a message broker with Pub/Sub mechanism for state and messaging
  • High availability achieved through horizontal scaling, Redis Sentinel, and clustering