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A "firewall" is a network security technology that monitors incoming and outgoing network traffic. Based on predefined rules, it allows or blocks specific data transmissions, defending against threats such as malicious attacks, adware, and malware.
However, a firewall cannot fully guarantee online security. Therefore, elders should remain vigilant when using the internet: avoid clicking on suspicious links, refrain from browsing unknown websites and do not disclose personal information casually. By keeping these principles in mind, they can safely enjoy the convenience and joys of the digital world.
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