sleek black and red shield icon with a metallic finish for security, protection, and defense themes

advertising lighting signage number circle orange poster design symbol brand label font text logo line sign red shield black red security protection icon defense safety metallic symbol secure technology defenseicon protectionicon branding strong shiny safeguard metallicshield logo secureicon digital power modernshield safetyicon securityart futuristic metalfinish techicon symbolofprotection bold