Firewalls are a key issue in the areas of cybercrime and cybersecurity, digital transformation as well as Industry and Factory 4.0. Firewalls protect networks, computers and data from unwanted access. They function like a digital protective wall that decides what information is allowed into a network and what must remain outside.
Imagine a firewall as a bouncer in a discotheque: Only people with valid ID and on the guest list are allowed in. Similarly, the firewall checks all incoming and outgoing data streams and automatically blocks harmful or unwanted connections.
Firewalls are essential, especially in companies that use digital processes or network their production. They prevent hackers or malware from gaining access to sensitive information or control systems. Firewalls also protect against cyberattacks in the home office or in the private sphere.
There are software firewalls, which are installed on individual computers, and hardware firewalls, which secure entire networks. Companies should regularly check their firewall settings and keep them up to date to ensure long-term protection.
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