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With The Exponential Growth Of Digital Communication, Ensuring The Confidentiality And Integrity Of Sensitive Information Has Become A Critical Challenge. Steganography, The Art Of Concealing Data Within Digital Media, Provides An Effective Means Of Covert Communication. Among Various Methods, Least Significant Bit (LSB) Substitution Is Widely Adopted Due To Its Simplicity And High Payload Capacity. However, Traditional LSB Techniques Are Vulnerable To Statistical Attacks And Unauthorized Extraction, Thereby Limiting Their Robustness. To Address These Shortcomings, This Work Proposes An Improved LSB-based Image Steganography Approach Integrated With The Advanced Encryption Standard (AES) Algorithm. Prior To Embedding, Secret Data Is Encrypted Using AES To Provide Strong Cryptographic Protection, Ensuring That Even If The Hidden Data Is Extracted, It Remains Unintelligible Without The Decryption Key. The Encrypted Message Is Then Embedded Into The LSBs Of Cover Images, Thereby Combining The Advantages Of High Imperceptibility And Enhanced Security. Experimental Results Demonstrate That The Proposed Method Achieves High Peak Signal-to-Noise Ratio (PSNR) And Structural Similarity Index (SSIM), Indicating Minimal Visual Distortion Of The Stego Image, While Significantly Strengthening Resistance Against Steganalysis And Brute-force Attacks. This Dual-layered Security Model Enhances The Confidentiality, Integrity, And Reliability Of Hidden Communication, Making It Suitable For Secure Multimedia Transmission In Real-world Applications.