English to Portuguese Tech/Engineering IT (Information Technology) Malware/Ransomware

'Techopedia explains Zero-Day Threat

Zero-day exploits are often put up by renowned hacker groups. Typically, the zero-day attack exploits a bug that neither developers, nor the users, know about. Indeed, this is exactly what the malicious coders anticipate. By discovering a software vulnerability before the software's developers do, a hacker can make a worm or virus that can be used to exploit the vulnerability and harm computers.'

My questions is
Is there an expression that is commonly used in Portuguese that expresses this expression in English?