Zero-day attack Computer threats that prey on software weaknesses developers had not identified.

是指电脑被攻击是因为电脑软件上有开发者没有发现的缺陷，从而被黑客利用；

youdao

The malware that led to the hacking of security giant RSA may have been a "zero-day attack" – ie, it had never been seen before – but the method of infection was nothing new.

恶意软件导致安全巨人RSA公司遭到“zero-day attack”攻击（指系统有缺陷，被黑客抓住而发起的攻击）--通过IE，以前没有发生过这种事--但是攻击的技术却是老套。

youdao

The malware that led to the hacking of security giant RSA may have been a "zero-day attack" – ie, it had never been seen before – but the method of infection was nothing new.

恶意软件导致安全巨人RSA公司遭到“zero-day attack”攻击（指系统有缺陷，被黑客抓住而发起的攻击）--通过IE，以前没有发生过这种事--但是攻击的技术却是老套。

youdao