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Outages can disrupt security tools and critical services, showing how failures in infrastructure, vendors, or recovery plans affect cyber resilience.

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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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Bank Info Security 1 year, 10 months ago

ISMG Editors: Will Microsoft Rethink Windows Security?

Also: Mastercard's Big Acquisition and US Election Security EffortsIn the latest weekly update, ISMG editors discussed the fallout from the CrowdStrike global IT outage on endpoint security tools, Mastercard's monumental acquisition of Recorded Future to bolster its cybersecurity portfolio, and the latest efforts by U.S. officials to secure the 2024 election.

More from Bank Info Security 14 Sep 2024, 8:30 a.m. Acquisition America Credit Card Crowdstrike Election Endpoint Security Microsoft Outage

Hauling in 30,000 staff IN PERSON to do password resets Breaking Transport for London's ongoing cyber incident has taken a dark turn as the organization confirmed that some data, including bank details, might have been accessed, and 30,000 employees' passwords will need to be reset via in-person appointments.…

More from The Register 13 Sep 2024, 2:54 a.m. Banking Exposure Finance Incident Outage Passwords
Bank Info Security 1 year, 10 months ago

CrowdStrike Has Yet to See Any Customer Lawsuits Over Outage

'We Don't Know How It's All Going to Shake Out,' Says CFO, 6 Weeks Post-OutageCybersecurity firm CrowdStrike has yet to see any lawsuits get filed against it by customers, following its July 19 faulty software update crashing systems worldwide. Does that speak to the company having run a well-executed crisis management strategy?

More from Bank Info Security 11 Sep 2024, 7:00 a.m. Crowdstrike Lawsuit Outage Strategy