{"product_id":"2940156740444","title":"Firewall (computing)","description":"In computing, a firewall is a network security system that monitors and controls the incoming and outgoing network traffic based on predetermined security rules. A firewall typically establishes a barrier between a trusted, secure internal network and another outside network, such as the Internet, that is assumed not to be secure or trusted. Firewalls are often categorized as either network firewalls or host-based firewalls.","brand":"Euprint press Limited","offers":[{"title":"Default Title","offer_id":47300584079600,"sku":"2940156740444","price":1.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/2940156740444_p0.jpg?v=1764122343","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/2940156740444","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}