Millions of Dell laptops at risk due to Broadcom chip security flaw - here's how you can stay safe

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• Critical security vulnerabilities have been identified in Broadcom chips
• These flaws leave Dell devices containing the chips at risk
• The resulting attack has been dubbed 'ReVault', and users should patch now

A host of critical security flaws in Broadcom chips could mean tens of millions of Dell laptops and other devices are at risk of possible attack.