50% of the app in Nigeria lacks proper security testing. What they all want is for them to deploy and write online that they just get 1k users. Or Dev saying they can do the security test also, by using AI.... ๐ค ๐
Reconing day is near.
#appsec#cybersecurity
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I was driving when I noticed a traffic camera flash as I passed. I knew I wasn't speeding, so I figured it had to be a mistake.
Just to be sure, I turned around and drove past the same spot again, this time even slower. Flash!
Curious now, I went around again, driving at a snail's pace. Flash!
At this point, I thought it was hilarious, so I passed by two more times, each slower than the last. Flash, flash!
I couldn't stop laughing. I was convinced the camera was broken.
Two weeks later, five tickets arrived in the my mail...
Every single one was for driving without a seat belt. ๐
Nigeria has now been delisted from the International Maths Olympiad, whose finals are happening in Shanghai, China, this July.
It is one of the most prestigious academic competitions in the world.
Nigeria can now only participate as an observer nation, while other countries can participate fully.
This was because of the Ministry of Educationโs inability to fund students for 4 consecutive years through National Mathematical Center.
Itโs a big shame for Nigeria.
A question Iโve never seen discussed enough:
If a missile was fired towards Aso Rock today, would Nigeriaโs air defence system detect and intercept it before it reached its target?
How prepared are we for modern warfare in an era of drones, ballistic missiles, and long range precision strikes?
Companies replacing junior roles with AI, only to complain about the lack of senior talent in 4-5 years, is going to be the most predictable crisis in hiring history.
This is one of those interview questions that separates people who use software from people who understand it.
Most candidates freeze here because they think about scale the wrong way.
They picture a database with billions of rows and assume the check is scanning through all of them... but that's not how it works at all.
The answer lives in a data structure called a hash table.
When you store a username, you don't file it in a sorted list you have to walk through.
You run it through a hash function, which converts that string into a fixed-size index almost instantly.
So when you type a new username, the system hashes it, goes directly to that memory location, and checks: is anything here?
One operation. Constant time. Doesn't matter if there are a million users or a billion.
But there's a second layer most people miss.
At Google's scale, usernames aren't sitting in one database on one server.
They're distributed across many nodes, and frequently cached in fast in-memory stores so the lookup doesn't even need to travel to persistent storage at all.
The UI fires the check asynchronously as you type, and the response comes back before your brain has registered it as a "request."
So the real answer to the interviewer is this: hash-based lookups give you O(1) time complexity, distributed architecture gives you availability, and in-memory caching gives you the speed that makes it feel instant.
Three layers working together is what makes the magic look effortless.
Three years later, we can see that the monkeys that snatched the car key from the owner are still unable to drive it. The car is still where the owner left it.
@ExMuslimAz Why they aren't doing separate que for men&women.?
Here in India they r hiding females in head to toe black sack, separate classes rooms& eating place&Gyms&separate gates for female entry/exit & many 'separates' in everywhere they're gathering..
Everything is 'separate' here.๐