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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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Two years ago, almost every customer conversation about AI started with the same questions: Which model should we use? What can it do? Is it ready for the enterprise? Today, those discussions have moved on. CIOs are far more interested in how to govern AI, integrate it with existing systems, prepare their workforce and make it part of everyday operations. The challenge is no longer to prove that AI can deliver value. It's instead about how to embed AI into the business in a way that's secure, scalable and delivers measurable outcomes ...

 

Two things happened to production incidents between 2023 and now, and they did not happen at the same speed. The first is that a class of dependency that barely existed three years ago now accounts for one incident in ten. Incidents disclosed by AI model and AI application providers rose from 1.7% of all disclosed unplanned incidents in 2023 to 10.7% in 2026 year to date, roughly a sixfold rise; that counts only incidents at AI companies themselves, so the true share is higher. The second is that the time to close an incident has not come down ...

When an AI assistant gives an incomplete or incorrect answer, teams often blame the model. They adjust prompts, switch models, increase context windows or test a new retrieval strategy. However the model may not be a problem. In many enterprise AI workflows, the problem begins inside the document-ingestion pipeline ...

If you talk to any security or observability teams right now, they're all fighting the same fire: their tooling was built to ingest X, but their sources are pumping Y and soon to be doing Z. The knee-jerk reaction is always the same: we need more platform. However, this reaction is wrong. Let me explain why, because the solution to this problem is foundational, not financial. Instead of hurling yet more money at the problem, make sure you've done what's needed upstream ...

Rapid AI adoption and the unique ways AI workloads operate is redefining the scope and structure of what these teams must deliver. This shift is forcing organizations to rethink how they manage scale, automation, and control, according to The State of SRE and Platform Engineering 2026, a new report from Dynatrace ...

AI is usually talked about as a software tool, but it also depends heavily on the network behind it. Whether a company is using AI for chatbots, automation, monitoring, analytics, or employee support, all of that information has to move across the network in a reliable and secure way. That means AI is not just an application decision. It is also an infrastructure decision. Before organizations rush into AI, they should ask a simple question: Is our network ready to support it? ...

Enterprise AI often lacks governed access to where business processes actually execute. Without that access, AI agents may be able to reason, but they cannot operate reliably across enterprise workflows. For AI agents to effectively carry out workflows, they will require integration-layer context and controls. Organizations can implement these prerequisites by providing AI with managed access to the middleware layer ...

Enterprise networks rarely behave the same way for very long. A routing adjustment in one region may unexpectedly alter application performance in another. A cloud migration may introduce hidden dependencies that go unnoticed until an outage occurs. All the while, the network is managed by several different teams, each of whom use different tool sets — and as a result, have different views of the network ... There’s usually an engineer who remembers why traffic fails over a certain way between sites, or which transparent firewall was added where. The problem is that human memory cannot scale alongside enterprise-scale networks ...

Ask an infrastructure team how confident they are in their ability to govern AI, and most will tell you they've got it handled. A recent survey of 406 IT decision-makers and platform engineering leaders found 86% expressing exactly that confidence. Ask the same group whether they have a formal written AI governance policy, and the number drops to 30%, according to Spacelift's Infrastructure Automation Report ...

In MEAN TIME TO INSIGHT Episode 27, Shamus McGillicuddy, EMA VP of Research, Network Infrastructure and Operations, and Parker Hathcock, EMA Research Director covering IT Service/Operations (ServiceOps), discuss observability unification in modern IT operations ...