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When Microsoft 365 Goes Down, What Happens to Your Business?

The recent Microsoft 365 outage was a reminder of just how dependent businesses have become on cloud services.

Starting at about 11:17 a.m. Eastern Time on Thursday, November 12, 2026, Microsoft reported mailbox connectivity issues and disruptions to Microsoft 365 features that depend on Exchange Online, tracked as incidents EX1550543 and MO1550821. CNBC reported that the outage affected Outlook and multiple Microsoft 365 services, including Teams, SharePoint and Copilot. Microsoft said the disruption stemmed from an issue during an earlier network capacity upgrade and that it had not detected malicious activity as the cause. USA TODAY also reported widespread user issues with Outlook and Microsoft 365.

As recovery progressed, Microsoft focused on reducing email queues and backlogs, and extended its email timeout window to 48 hours to minimize the risk of message loss while delayed messages were processed.

For businesses that rely on Microsoft 365 every day, an outage like this isn’t simply an IT inconvenience. If Outlook is unavailable, employees may be unable to communicate normally with customers, vendors, prospects and one another. That’s why organizations should think about email continuity before an outage happens.

Microsoft 365 Is Reliable, But No Cloud Platform Is Immune to Outages

Microsoft 365 provides highly available cloud infrastructure, but highly available doesn’t mean disruptions can never occur. The lesson from an outage shouldn’t be that businesses need to move away from Microsoft 365. The lesson is:

Your business shouldn’t depend on a single system for critical communications without a continuity plan.

Just as businesses protect servers and data with backups and disaster recovery, email should be part of the business continuity strategy.

What Is an Emergency Inbox?

An Emergency Inbox provides an alternate way for employees to access email when their primary email environment is unavailable. Delivered as part of an email security service, it’s a web-based email continuity tool that can be used while the primary mail system is down.

When the primary mail environment can’t accept messages, the email security service can hold (“spool”) incoming mail and make it available through the Emergency Inbox. Users can receive messages, reply to messages and send new email through the alternate interface. Think of it as a backup communications channel for email.

Instead of waiting for Microsoft 365 mail flow to return, employees still have a way to communicate.

Why Email Continuity Matters

Consider what happens if your organization’s email is unavailable for several hours. Your team may be unable to:

• Respond to customers
• Receive new sales inquiries
• Communicate with vendors
• Respond to urgent service requests
• Exchange time-sensitive documents
• Receive important business notifications
• Keep employees informed during an incident

For some organizations, a few hours without email is inconvenient. For others, it can directly affect revenue, customer service, operations and reputation.

Email Backup and Email Continuity Aren’t the Same

Many businesses assume they’re covered because they back up Microsoft 365. Backup is essential, but it solves a different problem:

Learn more about Microsoft 365 backup and email security.

An Emergency Inbox Needs to Be Set Up Before the Emergency

One of the most important parts of email continuity is planning ahead. Some capabilities, such as outage (spooling) alerts, must be configured before an outage begins if administrators want to receive those notifications. TCI recommends that organizations don’t simply purchase an email continuity capability and forget about it. The process should include:

1. Configure the service
2. Identify who needs Emergency Inbox access
3. Enable appropriate outage and spooling alerts
4. Document how employees access the backup inbox
5. Test the process
6. Review it periodically

Employees should know what to do before Outlook stops working, not while the company is trying to determine whether Microsoft 365 is down.

Email Continuity Is Only One Part of Business Continuity

The recent outage affected more than email: CNBC reported impacts across services including Outlook, Teams, SharePoint and Copilot. That means businesses should take a broader look at their Microsoft 365 dependency. A continuity review should consider:

• Email continuity
• Microsoft 365 backup
• SharePoint and OneDrive data protection
• Alternative communication procedures
• Emergency contact information
• Internet redundancy
• Cybersecurity incident response
• Disaster recovery procedures
• Employee outage procedures

The goal isn’t to eliminate every possible outage. It’s to make sure one outage doesn’t stop the entire business.

Could Your Business Keep Communicating if Microsoft 365 Went Down Tomorrow?

That’s the question business owners and IT leaders should be asking after this outage. Start with this quick checklist:

1. Do we have an Emergency Inbox or email continuity service?
2. Do employees know how to access it, and have they tried it?
3. Do we have a backup way to communicate internally if Teams is also affected (phone, text)?
4. Do key staff keep critical contacts somewhere outside Microsoft 365?
5. Who decides when to notify clients, and what will we say?
6. Have we bookmarked Microsoft’s service status page?
7. Is Microsoft 365 data backed up independently?

If the answer to several of these is “we’re not sure,” it’s worth reviewing your email and Microsoft 365 continuity strategy now.

Talk to TCI Technologies

TCI Technologies can help evaluate your Microsoft 365 environment and determine whether an Emergency Inbox and email continuity solution makes sense for your organization. We’ll look beyond Microsoft 365 licensing and evaluate the complete picture, including email security, emergency email access, Microsoft 365 backup, business continuity, cybersecurity, disaster recovery, and Microsoft 365 monitoring and support.

Don’t wait for the next Microsoft 365 outage to find out whether your continuity plan works.

Talk to TCI About Email Continuity → Contact TCI Technologies to schedule a review of your Microsoft 365 and email continuity strategy, or call (516) 484-5151. Serving businesses across Long Island, New York City and the Tri-State area.

Choosing a Microsoft 365 plan can look simple until you start comparing productivity applications, email, cybersecurity, device management, identity protection, data security and AI.

The least expensive plan isn’t always the least expensive solution.

A business may save money on Microsoft 365 licensing but then need separate products for endpoint security, email protection or device management. Another business may already have excellent third-party security and little reason to duplicate those capabilities.

This Microsoft 365 Buyer’s Guide will help you determine what your organization actually needs before choosing a plan.

Start With What Your Business Actually Needs

Before comparing licenses, answer six questions:

1. How many users do you have?
2. Which Microsoft applications do employees need?
3. Where do employees work?
4. How will you secure their identities and devices?
5. What cybersecurity products do you already have?
6. Are you planning to use Microsoft Copilot or other AI tools?

Your answers can quickly narrow down the right Microsoft 365 licensing strategy.

1. How Many Microsoft 365 Users Do You Have?

Microsoft’s Business plans are designed for organizations with up to 300 users. For most small and midsize businesses, common options include Microsoft 365 Business Basic, Business Standard and Business Premium. Organizations approaching or exceeding 300 users should generally begin evaluating Microsoft enterprise licensing as part of their strategy.

But don’t choose licenses based only on employee count. A 25-person financial firm handling sensitive customer information can have very different security requirements than a 100-person organization where most employees work from a controlled office environment.

2. Which Microsoft 365 Applications Do Your Employees Need?

Start with the basics. Do employees need Outlook, Word, Excel, PowerPoint, Microsoft Teams, OneDrive, SharePoint, the desktop Microsoft 365 applications, and business email?

Microsoft’s business plans provide different combinations of these capabilities. For businesses that need the full desktop productivity suite along with business email, Teams, OneDrive and SharePoint, Business Standard is often the logical starting point. Microsoft currently lists desktop, web and mobile versions of its primary apps as part of both Business Standard and Business Premium.

But productivity requirements are only half the decision. The next question is increasingly important: how are you going to secure everything?

3. Where Do Your Employees Work?

The modern workplace has changed the Microsoft 365 licensing conversation. Your employees may work in the office, from home, from multiple locations, while traveling, and from company laptops, personal computers, smartphones and tablets.

Ask yourself: do we just need employees to access Microsoft 365, or do we also need to control the devices accessing our information? That distinction matters.

When Device Management Becomes Important

If you’re issuing company laptops or allowing remote access to company information, consider whether you need centralized device management. Microsoft 365 Business Premium includes device management and security capabilities designed to protect company devices, including Microsoft Intune.

Device management lets you set standards for security configurations, device compliance, encryption, application deployment, corporate data and access policies. For a workforce operating from multiple locations, that can be a significant advantage.

4. What Are Your Cybersecurity Requirements?

This is where the difference between Microsoft 365 plans becomes much more significant. Ask:

Identity: Do we require MFA? Do we need Conditional Access? Do we want policies controlling how users sign in? Do we need stronger protection against compromised accounts?

Devices: Do we need endpoint security? Do we manage employee laptops? Do we need device compliance policies? Do remote devices need centralized management?

Email: How are we protecting users against phishing? What happens when someone receives a malicious attachment? Are links in email being evaluated for threats?

Data: Do we handle financial information, personal information, healthcare information, employee records or customer confidential information?

These questions often determine whether Business Standard or Business Premium makes more sense.

5. Business Standard vs. Business Premium

Here’s the easiest way to think about the two plans.

Microsoft 365 Business Standard

Best suited for businesses primarily looking for productivity and collaboration: Outlook, Word, Excel, PowerPoint, Teams, Exchange business email, OneDrive and SharePoint. Business Standard can be an excellent option when your cybersecurity and device management requirements are already addressed through other platforms.

Microsoft 365 Business Premium

Best suited for businesses that want productivity plus Microsoft’s additional security and device management capabilities. Beyond the productivity foundation, Microsoft highlights capabilities around identity and access, device security and management, email and threat protection, and sensitive-data protection, including Microsoft Entra ID, Microsoft Intune, Microsoft Defender and Microsoft Purview.

The simplest distinction: Business Standard = Productivity. Business Premium = Productivity + Security + Device Management.

For the full side-by-side breakdown and FAQ, read Microsoft 365 Business Standard vs. Business Premium: What’s the Difference?

6. Do You Already Have Cybersecurity Products?

This is one of the most important questions, and one of the most commonly overlooked. Don’t purchase Business Premium simply because it contains more features. First determine what you’re already paying for. Your business may already have:

• Endpoint detection and response (EDR)
• Managed detection and response (MDR)
• Email security
• DNS and web filtering
• Identity protection
• Security awareness training
• Microsoft 365 backup
• SIEM and 24/7 monitoring

If these are already part of your managed cybersecurity environment, compare them against the capabilities included in Business Premium. You could discover unnecessary overlap, or an opportunity for consolidation.

Compare the Total Technology Stack

Instead of evaluating Business Standard vs. Business Premium, evaluate Business Standard + your existing cybersecurity products versus Business Premium + the security products you still need. That’s a much more useful comparison.

7. Does Business Premium Replace Your Cybersecurity Stack?

Not necessarily. Microsoft describes Business Premium as including device security, threat protection and protection for sensitive data. But having security technology included in a license doesn’t automatically mean an organization is secure. Someone still needs to answer:

• Are security policies configured correctly?
• Is MFA enforced appropriately?
• Is Conditional Access properly designed?
• Are devices enrolled and managed?
• Are security alerts being monitored?
• Who investigates suspicious activity?
• Who responds to an incident?
• Is Microsoft 365 data backed up?
• Is somebody monitoring security after normal business hours?

Licensing is not the same thing as security management. That distinction is particularly important when evaluating Business Premium.

Learn how TCI provides managed endpoint security, email security and 24/7 monitoring.

8. Are You Planning to Use Microsoft Copilot?

AI should now be part of the Microsoft 365 licensing conversation.

Confirm the Copilot packaging. Microsoft offers different Copilot experiences depending on your Microsoft 365 plan and licensing. Before purchasing, confirm which Copilot capabilities are included and which require an additional license. Review Microsoft’s current Copilot licensing options.

But don’t make Copilot solely a licensing decision. Before expanding it across your organization, review the information users can already access through SharePoint, OneDrive, Teams, Microsoft 365 Groups and shared repositories. Also evaluate identity security, device security, external sharing, data classification, information governance and AI policies.

AI can make information dramatically easier to find. That makes getting your permissions and information governance right even more important. See our Microsoft 365 Copilot consulting and AI advisory services.

9. What About Cyber Insurance?

Cyber insurance questionnaires increasingly focus on the controls an organization has implemented, not simply the products it owns. You may see questions about MFA, endpoint protection, email security, device management, privileged access, backups, security monitoring and incident response.

Business Premium can provide Microsoft technologies that support several of these controls. But owning a security capability and implementing it are two different things. Don’t answer a cyber insurance questionnaire based solely on the Microsoft licenses you own; verify how the controls are actually configured. See how TCI helps with cyber insurance readiness.

10. Should Every Employee Have the Same Microsoft 365 License?

Not always. Some organizations can appropriately combine licenses based on job responsibilities, device usage, information access, remote work, security and application requirements.

However, mixed licensing should be intentional. Saving a few dollars per license can become a poor trade-off if it complicates your security policies or prevents you from consistently managing users and devices. Start with the employee’s requirements, not the price of the license.

Microsoft 365 Buyer’s Checklist

Before choosing a plan, answer these questions.

Productivity

• ☐Do employees need desktop Word, Excel and PowerPoint?
• ☐Do we need Outlook and business email?
• ☐Do we use Teams?
• ☐Do we need OneDrive?
• ☐Do we use SharePoint?

Workforce

• ☐Do employees work remotely?
• ☐Do employees work hybrid?
• ☐Do employees travel?
• ☐Are company laptops provided?
• ☐Are mobile devices accessing company information?

Cybersecurity

• ☐Do we need endpoint protection?
• ☐Do we need enhanced email protection?
• ☐Do we need Conditional Access?
• ☐Do we handle sensitive information?
• ☐Do we have cyber insurance requirements?

Device Management

• ☐Do we need Microsoft Intune?
• ☐Do we need centralized device policies?
• ☐Do we want to check device compliance?
• ☐Do we need to protect data on remote devices?

Existing Technology

• ☐Do we already have EDR/MDR?
• ☐Do we already have email security?
• ☐Do we have security awareness training?
• ☐Do we have Microsoft 365 backup?
• ☐Do we have 24/7 security monitoring?

AI

• ☐Are we considering Microsoft Copilot?
• ☐Have we reviewed SharePoint permissions?
• ☐Have we reviewed OneDrive sharing?
• ☐Do we have an AI acceptable-use policy?
• ☐Do we know what information employees can access?

Which Microsoft 365 Plan Should You Choose?

Consider Business Standard if: your primary requirement is Microsoft productivity and collaboration, and your organization already has appropriate cybersecurity, identity and device management solutions.

Consider Business Premium if: you want to combine Microsoft productivity with additional security, identity and device management in the Microsoft ecosystem.

Consider a mixed licensing strategy if: your employees have substantially different jobs, devices and access requirements, and you can maintain consistent security without creating unnecessary management complexity.

Consider a Microsoft 365 Licensing Review if: you’re already paying for multiple Microsoft licenses and third-party cybersecurity products and aren’t sure where they overlap. That’s often where the biggest opportunities exist.

Don’t Buy Microsoft 365 Based on Price Alone

The objective isn’t to find the cheapest Microsoft 365 license. It’s to find the most appropriate combination of productivity, security, device management and support for your business.

For some organizations, that’s Business Standard paired with a well-designed third-party cybersecurity stack. For others, Business Premium can provide a strong foundation for consolidating identity, endpoint and device management. And increasingly, businesses also need to consider how their licensing strategy supports AI, Microsoft Copilot and data governance.

Need Help Choosing the Right Microsoft 365 Plan?

TCI Technologies helps small and midsize businesses evaluate Microsoft 365 from more than a licensing perspective. We can review your existing licenses, users and devices, Microsoft Defender configuration, Intune and device management requirements, MFA and Conditional Access, email and endpoint security, Microsoft 365 backup, SharePoint and OneDrive permissions, cyber insurance requirements, Copilot and AI plans, and your existing third-party security stack.

The goal isn’t to sell you the most expensive Microsoft license. It’s to determine which combination of Microsoft 365, cybersecurity and management technologies makes the most sense for your business. Serving businesses across Long Island, New York City and the Tri-State area.

Still unsure? Use TCI’s free Microsoft 365 Buyer’s Guide & Assessment → Answer a few quick questions and get a plan recommendation.

Get a Microsoft 365 Licensing & Security Review → · Or start with our free Microsoft 365 Readiness Assessment · Call (516) 484-5151

If your business is choosing between Microsoft 365 Business Standard and Business Premium, you’re weighing more than a price difference. Both plans include the same Office apps, Teams, email and file storage. The real difference is security: how well your accounts, devices and data are protected.

Here’s a side-by-side comparison, followed by what each difference means in practice.

Bottom line: Business Standard provides Microsoft’s core productivity and collaboration tools. Business Premium adds a much stronger security, identity and device-management layer.

Plan contents and pricing change periodically. Check Microsoft’s current plan details, or ask TCI, before you buy.

Not sure you need either? → Read our Microsoft 365 Buyer’s Guide to compare all the Business plans step by step.

What Business Standard Includes

Business Standard is Microsoft’s core productivity plan for small and midsize businesses (both Business plans support up to 300 users). It includes the desktop, web and mobile versions of Word, Excel, PowerPoint and Outlook; business email through Exchange; Microsoft Teams for chat, meetings and calling; and OneDrive and SharePoint for file storage and collaboration.

It also includes basic security features, such as multi-factor authentication through Microsoft’s security defaults, plus built-in spam and malware filtering for email. For a small team with simple needs and other security tools already in place, that may be enough.

What Business Premium Adds

Business Premium includes everything in Business Standard, plus a security layer that many businesses would otherwise buy separately:

Microsoft Defender for Business

Endpoint protection for Windows, Mac, iOS and Android devices, including endpoint detection and response (EDR) that watches for suspicious behavior, not just known viruses. Learn how managed EDR works.

Defender for Office 365 Plan 1

Stronger email protection, including Safe Links (checking links when they’re clicked) and Safe Attachments (opening attachments in a safe environment first), plus extra protection against phishing and impersonation. See our email security approach.

Microsoft Intune

Device management for company and personal devices: enforce security settings, deploy apps, require encryption and remotely wipe a lost laptop or phone. Learn about Intune.

Microsoft Entra ID P1 and Conditional Access

Smarter sign-in rules. Conditional Access can block sign-ins from unexpected countries, require MFA only when risk is higher, or allow access only from managed devices. It’s one of the most effective defenses against stolen passwords. Learn about Entra ID.

Information Protection

Sensitivity labels and data loss prevention (DLP) help keep confidential information, like client financial data or Social Security numbers, from being shared where it shouldn’t be.

Which Plan Is Right for Your Business?

Business Standard can make sense when: your team is small, you already have separate endpoint and email security you’re happy with, you don’t store much sensitive client data, and you don’t face compliance or cyber insurance requirements around device management.

Business Premium usually makes sense when: you handle sensitive client or financial information; you’re in a regulated or higher-risk industry (accounting, legal, healthcare, financial services, government); employees work remotely or on personal devices; your cyber insurance questionnaire asks about MFA, EDR and device management; or you want to consolidate several separate security tools into one Microsoft plan.

For many businesses, the cost difference between the two plans is less than the cost of buying comparable security tools separately. But licenses only help if they’re configured. Business Premium’s protections need to be set up and managed to deliver real value.

Microsoft 365 Business Standard vs. Business Premium FAQ

What is the difference between Microsoft 365 Business Standard and Business Premium?

The main difference is security and device management. Business Standard provides the core productivity tools businesses need, including Outlook, Word, Excel, PowerPoint, Teams, OneDrive and SharePoint.

Business Premium includes those productivity tools and adds advanced security and management capabilities such as Microsoft Defender for Business, Microsoft Intune, Microsoft Entra ID P1, Conditional Access and Defender for Office 365 Plan 1.

In simple terms: Business Standard = productivity and collaboration. Business Premium = productivity + security + device management.

Is Microsoft 365 Business Premium worth it?

For many small and midsize businesses, yes, particularly if you need stronger cybersecurity, centralized device management or more control over how employees access company information.

The important comparison isn’t just the difference in Microsoft licensing cost. Consider whether Business Standard would require you to buy separate endpoint security, email security, identity protection or device management products.

Does Microsoft 365 Business Premium include Microsoft Intune?

Yes. Business Premium includes Microsoft Intune Plan 1 for centralized management of supported computers and mobile devices. Intune helps enforce security policies, manage applications, evaluate device compliance and protect company information on managed devices. Learn about Intune.

Does Microsoft 365 Business Premium include Microsoft Defender?

Yes. Business Premium includes Microsoft Defender for Business for endpoint security and Microsoft Defender for Office 365 Plan 1 for additional email and collaboration protection, important capabilities for organizations concerned about ransomware, phishing, malware and compromised devices.

Does Microsoft 365 Business Standard include Defender?

Business Standard includes Microsoft’s baseline security protections, but not Microsoft Defender for Business or Defender for Office 365 Plan 1 the way Business Premium does. If you use Business Standard, evaluate what endpoint and email security is protecting your users and devices. See our email security approach.

Does Business Premium include Conditional Access?

Yes. Business Premium includes Microsoft Entra ID P1, which provides Conditional Access. You can create policies that decide when and how users access Microsoft 365, based on identity, device compliance, application and sign-in conditions. That’s significantly more control than passwords and MFA alone. Learn about Entra ID.

Is MFA included with Microsoft 365 Business Standard?

Yes, multi-factor authentication can be used with Business Standard. However, Business Premium’s Entra ID P1 and Conditional Access give you more sophisticated control over when MFA is required and when access should be allowed or blocked.

Is Microsoft 365 Business Premium better for cybersecurity?

Generally, yes, if the included security capabilities are properly configured and managed. Business Premium adds tools for endpoint protection, identity security, email protection, information protection and device management.

But purchasing Business Premium doesn’t automatically secure an organization. Conditional Access, Intune and Defender still need to be configured, monitored and maintained.

Can Microsoft 365 Business Premium replace third-party cybersecurity products?

It can replace some products, but not necessarily your entire security stack. Business Premium can reduce the number of separate tools needed for endpoint security, identity protection, device management and email security.

Some organizations still benefit from additional services such as managed EDR, email security, SIEM and 24/7 monitoring, security awareness training and backup. The better approach is to evaluate your entire security stack rather than automatically choosing Microsoft or third-party tools for everything.

Is Microsoft 365 Business Premium good for small businesses?

Yes. Business Premium is designed for small and midsize organizations and is especially attractive for businesses that want productivity, security and device management under a more consolidated licensing model. It’s particularly useful for companies with remote or hybrid employees, sensitive information, cyber insurance requirements, managed laptops and mobile devices, or growing compliance requirements.

Should remote employees use Microsoft 365 Business Premium?

Business Premium is often a strong fit for remote and hybrid teams, because Intune and Conditional Access give you more control over the devices and circumstances under which people access company information. You can build policies around managed devices, security compliance and authentication instead of relying on a password alone.

Do I need Business Premium for cyber insurance?

Not necessarily. Requirements vary by carrier, policy and organization. However, insurers increasingly ask about MFA, endpoint protection, email security, identity security, patching and device management.

Business Premium provides several technologies that help implement those controls, but simply buying the license doesn’t demonstrate they’ve been configured. See how TCI helps with cyber insurance questionnaires.

Does Microsoft 365 Business Premium include Microsoft Copilot?

Microsoft 365 Copilot should be evaluated separately from the core Business Premium security decision. Microsoft offers licensing and packaging options that combine Microsoft 365 and Copilot, and these offerings change over time.

Before deploying Copilot broadly, review your SharePoint permissions, OneDrive sharing, Teams access, identity security and data governance. Learn about Copilot consulting.

Do all employees need Microsoft 365 Business Premium?

Not necessarily. Some organizations combine licenses based on roles and security requirements. However, mixed licensing needs careful planning: security and management policies may depend on features licensed to individual users, so choosing Standard for some employees solely to save money can create complexity or security gaps.

TCI recommends designing your Microsoft 365 licensing around users, devices, data access and security requirements, not just picking the lowest-cost license for each employee.

Can I upgrade from Microsoft 365 Business Standard to Business Premium?

Yes. You can move users from Business Standard to Business Premium as your security and management needs grow. Before upgrading, plan how you’ll actually implement the Premium capabilities, particularly Intune, Defender for Business and Conditional Access.

Which is better: Microsoft 365 Business Standard or Business Premium?

There isn’t one answer for every organization. Choose Business Standard when your main need is Microsoft productivity and collaboration and you already have appropriate security and device management. Consider Business Premium when you also want Microsoft’s advanced identity, endpoint, email security and device management capabilities.

For many small and midsize businesses, Business Premium provides the stronger overall security foundation.

Still Not Sure Which Microsoft 365 Plan Is Right for Your Business?

TCI Technologies can review your existing Microsoft 365 licenses, users, devices, security tools, MFA, Conditional Access, Intune, Defender, SharePoint permissions and Copilot plans to determine which licensing model makes the most sense.

Rather than simply recommending the more expensive license, we’ll help determine where Business Standard, Business Premium, or a combination of licensing and third-party security tools is the best fit. Serving businesses across Long Island, New York City and the Tri-State area.

Not sure yet? Try the free TCI Microsoft 365 Buyer’s Guide → Answer five quick questions and get a plan recommendation.

Need help choosing between Business Standard and Business Premium? Contact TCI Technologies for a Microsoft 365 Licensing & Security Review, take our free Microsoft 365 Readiness Assessment, or call (516) 484-5151.