Assetnote ASM vs Cobalt Attack Surface Monitoring: 2026 Comparison

Assetnote ASM: External attack surface management platform with continuous asset discovery. built by Assetnote. headquartered in Australia. Core capabilities include Hourly automated asset discovery and scanning, Asset enrichment and contextualization, Exploit-based vulnerability verification..

Cobalt Attack Surface Monitoring: Continuous external asset discovery and monitoring with daily domain scans. built by Cobalt. headquartered in United States. Core capabilities include Automated discovery and cataloging of all internet-facing assets under verified domains, Daily domain scans to detect new hosts, port modifications, and certificate updates, Shadow IT identification by mapping previously unknown external assets..

Both serve the External Attack Surface Management market but differ in approach, feature depth, and target audience.