Users of iPhone, iPad, Mac, and Safari are urged to update their devices to the most recent versions in order to close security gaps that could be exploited to take control of a device. Apple released operating system updates to the impacted devices on Wednesday and Thursday in order to fix the vulnerabilities. Apple stated that processing maliciously engineered web content might result in arbitrary code execution and that a "application may be able to execute arbitrary code with kernel privileges" while describing the weaknesses in its security upgrades. The business added that it was aware of a claim that these flaws may have been actively used against users.