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Clarity · Jan 16, 2026

Top Cyber Dangers in Microsoft 365 and Google Chrome

Top Cyber Dangers in Microsoft 365 and Google Chrome

January brought some big cyber threats. If your business uses Microsoft 365 or Google Chrome, you need to know about these dangers. We looked at all the issues from this month and picked the two biggest ones for each platform.

This post is your quick guide. We'll explain what happened, why it matters, and what you can do about it. Let's keep it simple.

Microsoft 365: The Top 2 Dangers This Month

Microsoft 365 is used by millions of businesses. That makes it a big target for hackers. Here are the two most important threats you need to know about.

  1. Dangerous Office Documents Can Take Over Your Computer

What happened: Microsoft found serious flaws in Word, Excel, and other Office apps. These flaws are called CVE-2026-20952 and CVE-2026-20953. They have a danger score of 8.4 out of 10. That's pretty high.

Why it matters: If someone sends you a bad Word or Excel file, just opening it could let hackers in. They could take control of your computer. They could steal your files. They could spy on everything you do.

Who is at risk: Anyone using Microsoft 365 Apps or Office LTSC versions.

The simple fix: Don't open files from people you don't know. Make sure your Office apps are updated. Microsoft released patches on January 13th that fix this problem.

  1. Sneaky Phishing Emails Are Getting Past Your Defenses

What happened: Hackers are using a tool called Tycoon2FA. It helps them send fake emails that look real. These emails trick people into giving up their passwords. The scary part? These emails are slipping through normal spam filters.

Why it matters: Once hackers get your password, they can log into your email. They can read your messages. They can send emails pretending to be you. They can steal money or data from your business.

Who is at risk: Any business using Microsoft Exchange or Outlook.

The simple fix: Turn on multi-factor authentication (MFA). This means you need more than just a password to log in. Even if hackers steal your password, they can't get in without the second step.

Google and Chrome: The Top 2 Dangers This Month

Google Chrome is the most popular web browser. That makes it another big target. Here are the two biggest threats we saw this month.

  1. Fake Browser Extensions Are Stealing Your Data

What happened: Hackers created fake Chrome extensions. These look like helpful tools. But once you install them, they spy on you. They can see your passwords. They can watch what websites you visit. They can even change what you see on web pages.

Why it matters: Many people install extensions without thinking. Once a bad extension is on your computer, it's hard to know it's there. It can quietly steal your information for weeks or months.

Who is at risk: Anyone who uses Chrome and installs extensions.

The simple fix: Only install extensions you really need. Check reviews before you install. Remove any extensions you don't recognize. Your IT team can also block unknown extensions from being installed.

  1. Fake Login Pages Are Tricking People

What happened: Hackers are making fake Google login pages. These pages look exactly like the real thing. When you type in your username and password, the hackers capture it. Then they use your credentials to access your accounts.

Why it matters: Google Workspace holds your emails, documents, and business files. If hackers get in, they can see everything. They can lock you out. They can delete your data or hold it for ransom.

Who is at risk: Anyone using Google Workspace or Gmail for business.

The simple fix: Always check the web address before you log in. Real Google pages start with "accounts.google.com." If it looks different, don't enter your password. Use MFA so hackers need more than just your password.

Why These Threats Matter for Small Businesses

You might think hackers only go after big companies. That's not true. Small businesses are actually easier targets. Here's why:

  • Less security: Small businesses often don't have full-time IT staff.
  • Valuable data: You still have customer info, financial records, and business secrets.
  • Easy access: One stolen password can unlock your whole system.

The good news? You can protect yourself. You just need the right help.

From Black Clover Cyber: 5 Steps to Address the Issues

At Black Clover Cyber Security, we help small and mid-sized businesses stay safe. Here are five simple steps you can take right now to protect your business from these threats.

Step 1: Keep Everything Updated

Software updates fix security holes. When Microsoft or Google releases a patch, install it right away. Don't wait. Hackers know about these holes and try to use them before you update.

How we help: Our monitoring services track your systems 24/7. We make sure updates are installed quickly. You don't have to remember to do it yourself.

Step 2: Turn On Multi-Factor Authentication (MFA)

MFA adds a second layer of protection. Even if someone steals your password, they can't log in without the second step. This could be a text message code, an app notification, or a fingerprint.

How we help: We set up MFA across all your accounts. We make it easy for your team to use. No complicated tech stuff.

Step 3: Train Your Team to Spot Fakes

Most attacks start with a tricked employee. Someone clicks a bad link or opens a dangerous file. Training helps your team recognize threats before they cause damage.

How we help: We provide simple training that anyone can understand. We also run fake phishing tests to see how your team responds. It's like a fire drill for cybersecurity.

Step 4: Watch for Strange Activity

Sometimes hackers get in quietly. They don't do anything obvious at first. They wait and watch. That's why you need to monitor your systems for anything unusual.

How we help: Our threat monitoring catches strange logins, odd file access, and other warning signs. We alert you right away so you can act fast. We also keep logs of everything. If something goes wrong, we can trace what happened and fix it.

Step 5: Have a Plan for When Things Go Wrong

Even with good protection, bad things can happen. What matters is how fast you respond. Having a plan means less damage and faster recovery.

How we help: We help you create an incident response plan. If something happens, we're there to help you respond. We don't just set things up and leave. We're your partner in security.

The Bottom Line

January showed us that hackers aren't slowing down. Microsoft 365 and Google Chrome both had serious threats. But you don't have to face these dangers alone.

By keeping your software updated, using MFA, training your team, watching for strange activity, and having a response plan, you can stay ahead of the bad guys.

At Black Clover Cyber Security, we make this easy. We handle the hard stuff so you can focus on running your business.

Ready to protect your business? Take our quick security maturity check to see where you stand. Or contact us to chat about how we can help.

Stay safe out there.

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