This interactive line chart displays annual cyber attack counts across industry sectors, using data from the CISSM Cyber Attacks dataset. Three drop-down menus allow viewers to select up to three industry codes, and the chart renders a multi-line visualization with a color legend that updates dynamically. Built with D3.js, the visualization employs `flatGroup`, `scaleOrdinal`, and `schemeCategory10` to group and color lines, while custom axis and color legend modules handle responsive rendering. The chart includes an inner rectangle background and labeled axes showing year and attack counts for the filtered industries.