Outages can disrupt security tools and critical services, showing how failures in infrastructure, vendors, or recovery plans affect cyber resilience.
Search across headline titles and summaries.
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 BlackSuit ransomware gang is behind CDK Global's massive IT outage and disruption to car dealerships across North America, according to multiple sources familiar with the matter. [...]
Downtime set to crash into next week The vendor behind the software on which nearly 15,000 car dealerships across the US rely says an ongoing "cyber incident" has forced it to pull systems offline for a second time in as many days.…
The stream was briefly knocked offline, preventing millions of fans from accessing the game. Poland's head of digital services says "all leads lead to the Russian Federation."
The latest MITRE Engenuity ATT&CK Evaluations pitted leading managed detection and response (MDR) services against threats modeled on the menuPass and BlackCat/AlphV adversary groups. Trend Micro achieved 100% detection across all 15 major attack steps with an 86% actionable rate for those steps— balancing detections and business priorities including operational continuity and minimized disruption.
Hospitals Says Restoring the Affected IT Systems Will Take WeeksThe ransomware attack on a key U.K. National Health Service IT vendor has forced two London hospitals to reschedule around 1,500 medical appointments including critical cancer treatments and organ transplant surgeries. The disruption is now in its third week.
Also: Online adoption cyberstalker nabbed; Tesla trade secrets thief pleads guilty; and a critical ASUS Wi-Fi vuln Infosec in brief A popular spam blocklist service that went offline earlier this month has advised users it is down permanently – but at least one potential candidate is stepping up to try to fill the threat intelligence void.…