What it is
A worm is malware that spreads by itself over the internet or your Wi-Fi. It doesn’t need you to open a file. It finds weak spots on devices and jumps to them, then keeps spreading. Some worms steal data, some slow your PC, and some bring in more malware. Learn more: https://gridinsoft.com/worm
Why it matters
One infected device can quickly turn into many. That can mean stolen accounts, broken apps, and a slow or unusable network.
How it works
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Scan: looks for devices with bugs or easy passwords.
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Exploit: breaks in using that weakness.
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Copy: installs itself and starts scanning from the new device.
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Payload: may steal data, mine crypto, or drop ransomware.
Red flags
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Internet feels slow and your router lights are going wild.
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Lots of failed logins in logs or new accounts you didn’t create.
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Multiple devices show security alerts at the same time.
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Apps or services crash across different PCs.
Do it right
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Update everything: Windows, phones, apps, and your router firmware.
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Lock Wi-Fi: use WPA2 or WPA3 with a long password.
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Close doors: turn off unused remote access and UPnP on the router.
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Run protection: keep real-time anti-malware on.
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If hit: disconnect from the network, update and scan each device, change passwords from a clean device, and reboot your router after updating it.