Select what's true about packet sniffers. Check All That Apply Legitimate sniffers are used for routine examination and problem detection.Legitimate sniffers are used for routine examination and problem detection. Unauthorized sniffers are used to steal information.Unauthorized sniffers are used to steal information. Packet sniffers are relatively easy to detect.Packet sniffers are relatively easy to detect. Packet sniffers use viruses to capture data packets.