What does zero-day mean?
Reviewed answer
A zero-day is a security flaw discovered or attacked before the maker has a fix ready.
- Check the maker's official notice to see whether your product and version are affected.
- Apply any available update or the specific temporary protection the maker recommends.
- Keep built-in protections enabled and avoid downloads claiming to fix the flaw from unrelated websites.
Get help if
The maker confirms active attacks against your version and recommends an urgent protective action.