セキュリティ警告

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You're browsing along when suddenly a popup appears: セキュリティ警告. It flashes red, warning of a supposed virus or compromised account. But hold up—real security alerts from your OS or antivirus rarely demand immediate action via a link. This could be a scare tactic, designed to get you to call a fake support number or download something nasty. Stay calm, close the browser tab, and run a scan with trusted software instead.