In band vs Out of band communication in incident response: which is better?
Critical IT incidents demand swift and reliable communication. Yet, conventional communication channels often rely on the same infrastructure under attack. This vulnerability was starkly illustrated by the 2024 CrowdStrike incident, where a faulty software upgrade triggered a global IT outage, costing businesses an estimated $5.4 billion. The incident exposed a critical flaw: relying on "in band" communication for incident response.