Delaware high school students are invited to participate in a free cybersecurity challenge open now through Sunday, Feb. 28. CyberStart America is an online set of challenges that allows students to become cyber protection agents, solve puzzles, and explore all things cyber-related. Scholarships totaling $2 million will be awarded to 600 high-scoring students nationwide. Students can join anytime. More information is available at www.cyberstartamerica.org.