1. Steganoid is a tool for hiding information in images and audio files using steganography and AES encryption for added security. 2. It uses a least significant bit encoding scheme to hide data in the pixel values of images or sample values of audio. The hidden information is first encrypted with AES before being encoded. 3. The tool provides two layers of security - steganography and AES encryption. It allows hiding data larger than the cover file size and ensures data consistency even if the file format is changed. It can also be used for digital watermarking.