Cybersecurity Trends: Protecting Data in the Digital Age
Scammers now clone voices, hackers now use AI, and a single breach costs millions. Here is what is really happening online in 2026, and what you can do about it.
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Posts tagged #ahmershahdev
Inside the Database Stack
Follow one request from Django's QuerySet to PostgreSQL's disk pages, and learn what really slows your app down, why indexes can hurt, and when raw SQL earns its place.
RAG Retrieval Strategies on a 50k-Document Dataset: BM25 vs Dense vs Hybrid
At 50k documents you can skip the vector database drama. What matters is how you retrieve, how you fuse, and whether you measured.
One Seat, Two Buyers: Race Conditions, IDOR and Keys in a Cinema Booking System
What happens in the half-second when two people press Confirm on the same seat, and the other quiet ways a booking system can lie
The Discount That Knew You Were Hesitating: Rule-Based Personalisation in an Online Pharmacy
How a store can notice you keep coming back to the same cough syrup, offer you 8% off, and still charge exactly what the bag said
Zovita+: Building an Online Pharmacy That Adapts to Each Shopper
A case study on selling medicine online: real stock, prescriptions, a store that notices what you need, and the bugs that showed up on a 320 px phone
