An analyst does not simply believe in what they see on the surface. They delve deep into the information, seeking answers to the questions of why and how. They find a subtle thread or connection among chaotic data that is unnoticed by the average person.
A valuable diamond necklace has been stolen from the showroom of the city's renowned jeweler, Mr. Rahman. CCTV footage shows a masked person opening the vault and taking the necklace at 2 AM. However, the strange thing is that the thief did not break any locks, and no alarm was triggered. Roni placed more emphasis on the store's digital log file than on the CCTV footage. He sat at the computer and began checking data from the past month. He wanted to see who knew the digital code to open the vault and who had accessed the system in the past few days.
While analyzing, Roni noticed an 'unusual pattern.' For the past six months, the vault had always been opened between 10 AM and 8 PM. But three days before the theft, at 3 AM, someone attempted to access the system with the wrong password. The most bizarre information was that the digital card used to open the vault belonged to the store's manager. But the manager was not even in the city that night! Roni further analyzed the manager’s card data.
He found that last week, when the manager was at a coffee shop, his card was 'offline' for 10 minutes. Roni realized that someone had copied (cloned) the manager's card information while sitting in the coffee shop. He compared the CCTV footage from the coffee shop with the timestamps from the store's digital log. It turned out that a waiter at the coffee shop was very close to the manager's table at that time and had a device in his pocket. Based on this fine analysis, the police apprehended the waiter, and the diamond necklace was found in his possession.
