word
zero-day vulnerability
ZEER-oh DAY vul-NER-ah-BIL-ih-tee
ˈzɪəroʊ deɪ ˌvʌlnərəˈbɪlɪtiːListen
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Syllable breakdown
zerodayvulnerability
Dictionary meaning
software security flaw unknown to the vendor and for which no patch exists; attackers who discover such flaws can exploit them with no defense available; called zero-day because developers have had zero days to fix the problem; highly valued in both criminal and government intelligence markets
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