A cyberattack that exploits a software vulnerability after it has been discovered and disclosed but before the vendor has released a patch to fix it. Because no corrective patch exists at the time of the attack, it is extremely difficult to defend against. Monitoring vendor security advisories and applying patches promptly as soon as they are released is essential.

Past questions testing this term · 2 questions

• 2018h30h #87情報セキュリティ上の脅威であるゼロデイ攻撃の手口を説明したものはどれか。
• 2013h25a #74ゼロデイ攻撃の説明として，適切なものはどれか。