Outages can disrupt security tools and critical services, showing how failures in infrastructure, vendors, or recovery plans affect cyber resilience.
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Background for this topic.
Outage is a period when a system, network, application, or online service is unavailable or cannot perform its intended function. It may be planned maintenance or an unplanned disruption caused by equipment or software failure, misconfiguration, a dependency problem, natural hazards, or a denial-of-service attack. The tag generally concerns availability incidents, not every performance issue or security breach.
For security practitioners, an outage requires determining whether malicious activity contributed to the disruption while preserving relevant logs, network telemetry, and system state for investigation. Defenses include capacity planning, segmented and redundant architecture, tested failover and recovery procedures, and controls that limit the effect of DDoS traffic or compromised dependencies. Emergency changes made during recovery should be authorized and recorded, since they can create new vulnerabilities or affect data integrity. Clear incident ownership and communications help coordinate technical response without obscuring the cause or scope.
Insurance giant American Family Insurance has confirmed it suffered a cyberattack and shut down portions of its IT systems after customers reported website outages all week. [...]
Two weeks into an ongoing IT outage, Kwik Trip finally confirmed that it's investigating a cyberattack impacting the convenience store chain's internal network since October 9. [...]
Kwik Trip has released another statement on an ongoing outage, all but confirming it suffered a cyberattack that has led to IT system disruptions. [...]
Microsoft has fixed a known issue affecting Outlook for Microsoft 365 users since June and causing slow starts and freezes as if Offline Outlook Data Files (OST) were syncing right after launch. [...]
Information systems of state courts across Kansas are still offline after they've been disrupted in what the Kansas judicial branch described last Thursday as a "security incident." [...]