The Hacker News

MuddyWater Uses DLL Side-Loading in Espionage Campaign Targeting 9 Countries

MuddyWater targeted 9 organizations in 9 countries during Q1 2026, using DLL side-loading to steal data and evade detection.
IEEE

Attack Detection for Load Frequency Control Systems Using Stochastic Unknown Input Estimators

Abstract: False data injection attacks (FDIAs) against the automatic generation control (AGC) system can lead to unstable or non-optimal operation of the power grid. This paper introduces a method to ...
GitHub

157_ecommerce frequent customers visiting the app for purchase again and again (using inner join).sql

Question :- Ecommerce company is trying to identify returning active users. A returning active user is a user that has made a second purchase within 7 days of any other of their purchases. Write a SQL ...
IEEE

High Precision Waveform Reproduction of Shaking Table Based on Linear Active Disturbance Rejection Control

Abstract: Seismic simulation shaking table plays a key role in many industrial structural dynamic experiments. High-precision waveform repetition has a great impact on the experimental accuracy of ...