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.
A new Mirai-based botnet malware named 'ShadowV2' has been observed targeting IoT devices from D-Link, TP-Link, and other vendors with exploits for known vulnerabilities. [...]
Even worse, it might have been a 'test run' for future attacks A Mirai-based botnet named ShadowV2 emerged during last October's widespread AWS outage, infecting IoT devices across industries and continents, likely serving as a "test run" for future attacks, according to Fortinet's FortiGuard Labs.…
Three boroughs confirm investigation amid service outages, disrupted phone lines, and limited online access Two London councils are scrambling for answers after declaring a cybersecurity issue that began on Monday.…
Microsoft is investigating an Exchange Online service outage that is preventing customers from accessing their mailboxes using the classic Outlook desktop client. [...]
A new version of the Shai-Hulud worm has infected hundreds of npm packages and caused disruption to global CI/CD workflows
Fluent Bit has 15B+ deployments … and 5 newly assigned CVEs A series of "trivial-to-exploit" vulnerabilities in Fluent Bit, an open source log collection tool that runs in every major cloud and AI lab, was left open for years, giving attackers an exploit chain to completely disrupt cloud services and alter data.…