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.
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And one of those basics is focusing on sectors where a ransomware disruption creates immediate pressure to pay up, like with healthcare.
Threat actors are taking advantage of Internet-exposed tank gauges by breaching gas stations, opening the door to disruption.
An unauthenticated attacker can exploit the command injection vulnerability to gain remote access to robotic systems, causing significant disruption to the environment.
From the MGM and Caesars fiasco and MOVEit's patch nightmare to epic business blunders and the jaded reality of living in a post-breach world, Dark Reading looks back at the mistakes, miscalculations, systemic failures, and cringeworthy moments that still have us shaking our heads.
The House Committee on Homeland Security sent a letter about the Canvas cyberattack, the same day that the edtech company said it reached an "agreement" with the ShinyHunters cybercriminals.
While enterprises breaches make more headlines, smaller incidents tend to be under-reported, if at all, allowing campaigns to last longer with less disruption.
Attackers compromised Internet-facing OT devices and caused file and display manipulation, operational disruption, and financial losses across sectors.
The company's 8-K filing notes "unauthorized access" and that it has activated business continuity plans and taken some systems offline.
A chief medical information officer describes what hospitals face when they inevitably suffer a ransomware attack—whether it leads to short- or long-term outages.
The Iranian cyberattack on Stryker is the kind of stress test that business continuity and disaster recovery programs often do not plan for.
Iran and its supporters have taken to cyberspace to retaliate for US-Israeli military action, with an aim to cause economic and physical disruption.
But media reports described the attack as causing major disruption to PDVSA, the state-owned oil and natural gas company.
Even the most advanced systems like Cloudflare can fall victim to software issues and become a global point of failure, Dr. David Utzke argues, adding that the recent outage should be a warning for enterprises.
Initially though to be a DDoS attack, the incident was actually due to a routine change in permissions that caused widespread software failure.
Two massive technical outages over the past year underscore the need for cybersecurity teams to consider how to recover safely from disruptions without creating new security risks.
In the hotly political Middle East, you'd expect hacktivism and disruption of services. But retail attacks?
Outages affecting DevOps tools threaten to leave developers coding like it's 1999. How serious is the threat and what can companies do?
The for-hire platform leverages legitimate cloud-native tools to make detection and disruption harder for defenders and SOC analysts.
This Tech Tip outlines how organizations can make the shift to post-quantum cryptography for their hybrid cloud environment with minimal disruption.
The "incident" led to outages affecting a variety of the tech company's operations, though the full scope of the breach is unknown.