Protect email attachments and file downloads on Office365, Gmail, Box, OneDrive, and more. CloudGuard SaaS provides market-leading breach prevention that stops zero-day attacks before they reach SaaS users. Our Zero-Day Threat Protection leverages Check Point’s renowned SandBlast technology that scored 100% block rate and highest in evasion testing with NSS Labs. It uses evasion resistant CPU-level sandbox to block malware and zero-day threats and sanitizes files to deliver users safe content in seconds.