In this phase, it's important to stop infections from happening by identifying and blocking inbound threats such as zero-day malware, worms, viruses, trojans, malicious URLs, infected IP addresses, etc.

Key steps Zscaler takes to protect your environment:

• Inspect and block threats with inline scanning
• Inspect ALL web traffic, including SSL
• Stop zero-day attacks with behavioural analysis
• Stop known malware threats
• Shut down browser vulnerabilities
• Stop known malicious URL threats

Eventually either through malicious insiders or gaps in your defense, infections will invariably occur. At this phase, you need to be able to detect infections, data exfiltration attempts, and intercept communications from a botnet to its command and control (CNC) server.

Zscaler can detect outbound traffic from your environment to:

• Identify communications by compromised devices
• Identify botnet and stealth behavior
• Leverage cloud data to identify CNC servers
• Alert on suspicious port/protocol usage

Once a threat has been identified, it is critical to immediately contain further damage by blocking CNC communications and stopping all data exfiltration. Then the security team can correlate data and run forensics to identify the affected systems and do a root cause analysis and heal the infections.

Specifically, Zscaler, because it is a cloud-based service, can immediately help you remediate by:

• Blocking data exfiltration
• Stopping unauthorized communications
• Blocking communications by infected devices
• Understanding malware behaviour for remediation
• Locating infected devices and understand attack patterns