Many email and cloud platforms allow you to preview files in your browser, so opening unknown documents this way first is a simple way to reduce the risk of running harmful content on your device.
Why Email Security and Phishing Protection Matters
Unexpected attachments are one of the most common ways malware and phishing attacks reach businesses. Opening a file directly in a desktop application can allow embedded content, such as macros or scripts, to run if enabled. Previewing a file in your browser, where supported, limits this behaviour and gives you a chance to assess the content before downloading it. If you accidentally download a malicious file, it may lead to needing professional virus removal or a review of your overall Internet Security setup.
How to Safely Preview Files in Microsoft 365
If your business relies on Email & Microsoft 365 for its daily communications, you can easily preview files in Outlook on the web or OneDrive:
- Click on the attachment or file.
- Select ‘Preview’ or ‘Open in browser’.
- Review the content without downloading it.
Office files such as Word, Excel and PDFs will typically open in a secure, web-based viewer.
How to Safely View Attachments in Google Workspace
For organisations using Gmail or Google Drive, the process is just as simple:
- Click the attachment or file.
- Select ‘Preview’ (often shown as an eye icon).
- Review the file in the browser window.
Once you have reviewed the document, you can then decide whether it is safe to download or open fully.
Cyber Security Threats to Watch For
Even when previewing files, you must remain cautious of:
- Requests to enable editing or macros after download.
- Links inside documents that prompt further action.
- Files from unknown or unexpected senders.
If in doubt, always verify with the sender before opening fully. A practical approach is to use your browser preview as a quick first step when dealing with unexpected files. It only takes a moment and adds an extra layer of caution before opening content directly on your device, helping reduce the risk of accidental malware execution.
Protect Your Business With Hexham’s Leading IT Experts Relying entirely on software to catch every malicious email is risky. At Centurion Computers, we offer comprehensive Core Security Awareness Training to teach your staff how to spot these dangers before they click.
Whether you need proactive Managed IT Support for your home or business, robust Cloud Backup solutions to protect your data, or general SOS Support to get you out of bother, our friendly team is here to help.
Don’t wait until a breach happens. Secure your network today: Contact Centurion Computers Here