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Zero-day – what do you say in an MNC round?
Zero-day – what do you say in an MNC round? A zero-day is a vulnerability with no public patch at the time it’s found or exploited. You can’t patch it yet, so you lean on layers: least privilege, EDR behaviour detection, segmentation. “Defence-in-depth buys time until the vendor fix lands, then I pa

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What this card says
Short answer
A zero-day is a vulnerability with no public patch at the time it’s found or exploited.
Example
You can’t patch it yet, so you lean on layers: least privilege, EDR behaviour detection, segmentation.
Say it in the interview
“Defence-in-depth buys time until the vendor fix lands, then I patch fast.”
Why it matters
No patch means detection and layering are your only defence for a while.
Learn more in the lesson: 47.6 Cloud and AWS Security MNC Themes