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.
The Vice Society ransomware group has claimed responsibility for the recent cyber attack on the city of Palermo in Italy, which has caused a large-scale service outage. [...]
SSNDOB, an online marketplace that sold the names, social security numbers, and dates of birth of approximately 24 million US people, has been taken offline following an international law enforcement operation. [...]
Cybersecurity needs to shift its thinking ahead of the next disruption, RSA's CEO said during the opening 2022 conference keynote.