An extended outage affecting Microsoft’s Outlook email service, which lasted over 20 hours, has prompted analysis from experts regarding its duration and potential consequences.
According to Professor James Ferryman, the issue appears to stem from a server overload related to secure connection setups. He explained that when such a server becomes overwhelmed, it ceases to respond, leading to a cascading failure where the workload is passed to other servers, further exacerbating the problem as numerous devices attempt to reconnect.
Ferryman noted that restoring service is complex, requiring a gradual, phased approach rather than an immediate restart to manage the surge of reconnecting devices. Gergely Orosz, a former software engineer, described the incident as potentially the most disruptive business email outage ever, highlighting the unusual length of the downtime.
Cyber-security expert Troy Hunt emphasized the outage’s broader implications, underscoring the critical role of services like Microsoft in the internet’s infrastructure. He pointed out that the disruption impacts not only work productivity but also essential communications, online transactions requiring verification, and account management.
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Source: bbc.co.uk
