With Panda Cloud Antivirus we introduce a new protection model based on a thin-client agent & server architecture which services malware protection as opposed to locally installed products.

References: https://www.cloudantivirus.com/en/  https://blog.cloudantivirus.com/2009/04/

Immunet Protect Community AntiVirus software is a free cloud-based, community-driven antivirus solution for consumers built by Immunet. It is built to protect entire online communities against viruses in real-time.

References: https://www.immunet.com/main/index.html http://en.wikipedia.org/wiki/Immunet

Zscaler provides an in-the-cloud security service for web traffic. The service offers SaaS protection against malware and enforce policies for outbound web traffic.

References: https://www.zscaler.com/ https://en.wikipedia.org/wiki/Zscaler

ScanSafe is a provider of Web security-as-a-service (SaaS) for organizations. Its services block malware and secure the use of the Web and messaging. Noted as being the first to successfully deliver a Secure Web Gateway service.

References: https://www.scansafe.com/ https://en.wikipedia.org/wiki/ScanSafe

Purewire  provides an in-the-cloud security service for web traffic. Its services block malware and secure the use of the Web.

References: https://www.barracudanetworks.com/ns/products/purewire_web_security_service_overview.php https://en.wikipedia.org/wiki/Purewire

MessageLabs is a major provider of integrated messaging and web security services (hosted security)  .MessageLabs provides a range of managed security services to protect, control, encrypt and archive communications across Email, Web and Instant Messaging.

References: https://www.messagelabs.com/ https://en.wikipedia.org/wiki/MessageLabs