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MGM Resorts Incident Shows How Cyberattacks Impact Digital Performance and the Business

Pete Goldin
APMdigest

On September 10, MGM Resorts experienced what it called a "cybersecurity issue" that had a major impact on the company's systems, showing how cyberattacks can bring down applications, ultimately causing problems for a company in many ways.

According to Forbes, "The attack left hotel guests locked out of their rooms for hours and unable to use their digital key cards to charge goods and services. Eventually, the hotels resorted to manual processes and transactions."


The attack was first noticed by MGM Resorts on the evening of September 10. About 24 hours later the casinos were operational but the reservation systems was still down.

The company's website was also offline for at least 2 days.


In addition, the cyberattack impacted the MGM Rewards App and gaming on the casino floors. Las Vegas TV station KTNV reported, "Multiple gaming machines, including slot machines, have also gone offline due to the cybersecurity issue."

MGM Resorts has not yet disclosed which specific systems were impacted, and some of the downtime could be a result of the company shutting down its own systems to protect them, but the end result is still a disaster for the company. This attack shows how pervasive a cyberattack can be throughout a business operation.

In the latest episode of the Cybersecurity Awesomeness Podcast on DEVOPSdigest, Rick Sturm, CEO and Founder of Enterprise Management Associates (EMA) gave a stern warning to companies of all sizes. While speaking not specifically about MGM Resorts but more about cybersecurity in general, he said, "This stuff is rooted, to some extent, in corporate greed. Where management is always an afterthought, and security is even worse than that, it's way, way down. And we can save gazillions of dollars by connecting to the ... Internet, and security be damned, nobody will try to get in. And besides, we've got a couple firewalls. That should do it, right? No, it's not right ... We are seeing this over and over and over, and yet organizations are not taking the precautions that they need to. They take the quick and easy fix — they think. And ultimately, if you are connected to the Internet, you will be hacked, whether you're large or small."

On the podcast, Shamus McGillicuddy, VP of Research, Network Infrastructure and Operations, at EMA added, "From the perspective of the network engineering team, it points to the fact that people don't have a lot of control over what's happening within their network. They don't see what's happening. It's about access control and segmentation. Like limiting lateral movement. Having a lot granular control over who can talk to what inside inside your network, and being able to understand if some kind of anomaly is popping up in terms of connections and communication. It requires a lot of manual heavy lifting from a network engineering team to be able to lock things down completely. And no one does it. As Rick was saying, part of it's greed, like no one wants to spend the money on it. Part of it is they don't have the tools to do it. And another part of it is they don't have the people to do it … It's a problem that needs to be solved."

Listen to Episode 27 of the Cybersecurity Awesomeness Podcast for more of EMA's take on the MGM Resorts cyberattack.

Click here for a direct MP3 download of Episode 27

Pete Goldin is Editor and Publisher of APMdigest

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MGM Resorts Incident Shows How Cyberattacks Impact Digital Performance and the Business

Pete Goldin
APMdigest

On September 10, MGM Resorts experienced what it called a "cybersecurity issue" that had a major impact on the company's systems, showing how cyberattacks can bring down applications, ultimately causing problems for a company in many ways.

According to Forbes, "The attack left hotel guests locked out of their rooms for hours and unable to use their digital key cards to charge goods and services. Eventually, the hotels resorted to manual processes and transactions."


The attack was first noticed by MGM Resorts on the evening of September 10. About 24 hours later the casinos were operational but the reservation systems was still down.

The company's website was also offline for at least 2 days.


In addition, the cyberattack impacted the MGM Rewards App and gaming on the casino floors. Las Vegas TV station KTNV reported, "Multiple gaming machines, including slot machines, have also gone offline due to the cybersecurity issue."

MGM Resorts has not yet disclosed which specific systems were impacted, and some of the downtime could be a result of the company shutting down its own systems to protect them, but the end result is still a disaster for the company. This attack shows how pervasive a cyberattack can be throughout a business operation.

In the latest episode of the Cybersecurity Awesomeness Podcast on DEVOPSdigest, Rick Sturm, CEO and Founder of Enterprise Management Associates (EMA) gave a stern warning to companies of all sizes. While speaking not specifically about MGM Resorts but more about cybersecurity in general, he said, "This stuff is rooted, to some extent, in corporate greed. Where management is always an afterthought, and security is even worse than that, it's way, way down. And we can save gazillions of dollars by connecting to the ... Internet, and security be damned, nobody will try to get in. And besides, we've got a couple firewalls. That should do it, right? No, it's not right ... We are seeing this over and over and over, and yet organizations are not taking the precautions that they need to. They take the quick and easy fix — they think. And ultimately, if you are connected to the Internet, you will be hacked, whether you're large or small."

On the podcast, Shamus McGillicuddy, VP of Research, Network Infrastructure and Operations, at EMA added, "From the perspective of the network engineering team, it points to the fact that people don't have a lot of control over what's happening within their network. They don't see what's happening. It's about access control and segmentation. Like limiting lateral movement. Having a lot granular control over who can talk to what inside inside your network, and being able to understand if some kind of anomaly is popping up in terms of connections and communication. It requires a lot of manual heavy lifting from a network engineering team to be able to lock things down completely. And no one does it. As Rick was saying, part of it's greed, like no one wants to spend the money on it. Part of it is they don't have the tools to do it. And another part of it is they don't have the people to do it … It's a problem that needs to be solved."

Listen to Episode 27 of the Cybersecurity Awesomeness Podcast for more of EMA's take on the MGM Resorts cyberattack.

Click here for a direct MP3 download of Episode 27

Pete Goldin is Editor and Publisher of APMdigest

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Nearly every conversation about AI eventually circles back to compute. GPUs dominate the headlines while cloud platforms compete for workloads and model benchmarks drive investment decisions. But underneath that noise, a quieter infrastructure challenge is taking shape. The real bottleneck in enterprise AI is not processing power, it is the ability to store, manage and retrieve the relentless volumes of data that AI systems generate, consume and multiply ...

The 2026 Observability Survey from Grafana Labs paints a vivid picture of an industry maturing fast, where AI is welcomed with careful conditions, SaaS economics are reshaping spending decisions, complexity remains a defining challenge, and open standards continue to underpin it all ...

The observability industry has an evolving relationship with AI. We're not skeptics, but it's clear that trust in AI must be earned ... In Grafana Labs' annual Observability Survey, 92% said they see real value in AI surfacing anomalies before they cause downtime. Another 91% endorsed AI for forecasting and root cause analysis. So while the demand is there, customers need it to be trustworthy, as the survey also found that the practitioners most enthusiastic about AI are also the most insistent on explainability ...

In the modern enterprise, the conversation around AI has moved past skepticism toward a stage of active adoption. According to our 2026 State of IT Trends Report: The Human Side of Autonomous AI, nearly 90% of IT professionals view AI as a net positive, and this optimism is well-founded. We are seeing agentic AI move beyond simple automation to actively streamlining complex data insights and eliminating the manual toil that has long hindered innovation. However, as we integrate these autonomous agents into our ecosystems, the fundamental DNA of the IT role is evolving ...

AI workloads require an enormous amount of computing power ... What's also becoming abundantly clear is just how quickly AI's computing needs are leading to enterprise systems failure. According to Cockroach Labs' State of AI Infrastructure 2026 report, enterprise systems are much closer to failure than their organizations realize. The report ... suggests AI scale could cause widespread failures in as little as one year — making it a clear risk for business performance and reliability.

The quietest week your engineering team has ever had might also be its best. No alarms going off. No escalations. No frantic Teams or Slack threads at 2 a.m. Everything humming along exactly as it should. And somewhere in a leadership meeting, someone looks at the metrics dashboard, sees a flat line of incidents and says: "Seems like things are pretty calm over there. Do we really need all those people?" ... I've spent many years in engineering, and this pattern keeps repeating ...

The gap is widening between what teams spend on observability tools and the value they receive amid surging data volumes and budget pressures, according to The Breaking Point for Observability Leaders, a report from Imply ...

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