CyberCheck360 Email Guard by Kaavalan Limited
Every Gmail link, checked before you click. Preview any page safely. Open risky attachments in a sandbox. Built for non-techies.
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About this extension
Every Gmail link, checked before you click. Preview any page safely. Open risky attachments in a sandbox. Built for non-techies.
Every Gmail link, checked before you click:
The moment you open an email, every link inside it is checked against live threat intelligence and labelled right there in your inbox as safe, suspicious, or malicious. You see the verdict before your mouse moves.
Turn on Auto Link Protection and every link in Gmail is silently rewritten to route through our safety check first. You click the way you always have. If the destination is clean, you go straight there. If it's dangerous, we stop the page from loading and tell you why.
Preview any page safely:
Not ready to trust a link even after a green tick? Hit Scan. In about two seconds you get a live screenshot of the destination page, the domain's age, who registered it, where it's hosted, and the abuse contact if you need to report it.
A domain registered three days ago claiming to be your bank? Now you can see that before you type your password into it. It's the same check a security analyst would run, done for you in one tap, without your browser ever touching the site.
Open risky attachments in a sandbox:
That invoice from a vendor you don't remember. The shipping notice for something you didn't order. The "signed contract" from a name that's close to your client's.
Turn on Auto File Protection and every attachment opens inside a secure sandbox by default. It's an isolated browser that can't reach your computer, your files, your Drive, or your saved passwords. If the file is a real document, you read it as normal. If it's malicious, it stays contained in the sandbox and closes when you close the tab.
Wrong call? Fix it in one tap:
Every link has a flag icon. Report a false positive or a missed threat in a single click, and the detection sharpens for you, and for everyone else using it.
Built for non-techies, and priced like it:
CyberCheck360 Email Guard is $5.99 a month. Less than one lunch. Less than a streaming subscription. Less than the fee your bank will charge you to try to reverse a fraudulent transaction that you'll probably never get back.
The average phishing loss for an individual runs into the thousands. Recovery is worse than the initial hit: new passwords, new cards, credit monitoring, hours burned on hold.
You're not paying for software. You're paying so "I clicked the wrong thing" is never a sentence you have to say out loud.
This is for you if you're:
• An accountant, bookkeeper, or finance professional handling invoices and wire instructions all day
• A realtor, lawyer, or consultant whose business runs through email and can't afford a breach of client trust
• A small business owner who is also, unofficially, the IT department
• A freelancer or solo operator whose inbox is the business
• Anyone who has ever paused before clicking a link and wished someone smarter was standing behind them
A few honest things to know:
• Works only inside Gmail (gmail.com). Does not read, monitor, or touch any other tab, site, or browser activity. Banking, work docs, private browsing all stay completely untouched.
• Requires a CyberCheck360 subscription to activate. You're paying for the live threat intelligence, the sandbox infrastructure, and continuous updates behind the scenes.
• Your Gmail credentials are never shared with us. We check links and files. We don't touch your login.
Install now. The next suspicious email will come, and when it does, you'll be glad this was already there.
Every Gmail link, checked before you click:
The moment you open an email, every link inside it is checked against live threat intelligence and labelled right there in your inbox as safe, suspicious, or malicious. You see the verdict before your mouse moves.
Turn on Auto Link Protection and every link in Gmail is silently rewritten to route through our safety check first. You click the way you always have. If the destination is clean, you go straight there. If it's dangerous, we stop the page from loading and tell you why.
Preview any page safely:
Not ready to trust a link even after a green tick? Hit Scan. In about two seconds you get a live screenshot of the destination page, the domain's age, who registered it, where it's hosted, and the abuse contact if you need to report it.
A domain registered three days ago claiming to be your bank? Now you can see that before you type your password into it. It's the same check a security analyst would run, done for you in one tap, without your browser ever touching the site.
Open risky attachments in a sandbox:
That invoice from a vendor you don't remember. The shipping notice for something you didn't order. The "signed contract" from a name that's close to your client's.
Turn on Auto File Protection and every attachment opens inside a secure sandbox by default. It's an isolated browser that can't reach your computer, your files, your Drive, or your saved passwords. If the file is a real document, you read it as normal. If it's malicious, it stays contained in the sandbox and closes when you close the tab.
Wrong call? Fix it in one tap:
Every link has a flag icon. Report a false positive or a missed threat in a single click, and the detection sharpens for you, and for everyone else using it.
Built for non-techies, and priced like it:
CyberCheck360 Email Guard is $5.99 a month. Less than one lunch. Less than a streaming subscription. Less than the fee your bank will charge you to try to reverse a fraudulent transaction that you'll probably never get back.
The average phishing loss for an individual runs into the thousands. Recovery is worse than the initial hit: new passwords, new cards, credit monitoring, hours burned on hold.
You're not paying for software. You're paying so "I clicked the wrong thing" is never a sentence you have to say out loud.
This is for you if you're:
• An accountant, bookkeeper, or finance professional handling invoices and wire instructions all day
• A realtor, lawyer, or consultant whose business runs through email and can't afford a breach of client trust
• A small business owner who is also, unofficially, the IT department
• A freelancer or solo operator whose inbox is the business
• Anyone who has ever paused before clicking a link and wished someone smarter was standing behind them
A few honest things to know:
• Works only inside Gmail (gmail.com). Does not read, monitor, or touch any other tab, site, or browser activity. Banking, work docs, private browsing all stay completely untouched.
• Requires a CyberCheck360 subscription to activate. You're paying for the live threat intelligence, the sandbox infrastructure, and continuous updates behind the scenes.
• Your Gmail credentials are never shared with us. We check links and files. We don't touch your login.
Install now. The next suspicious email will come, and when it does, you'll be glad this was already there.
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Permissions and data
Required permissions:
- Access your data for mail.google.com
Optional permissions:
- Access your data for sites in the googleusercontent.com domain
- Access your data for mail.google.com
- Access your data for boldwinkie.cybercheck360.com
- Access your data for email.cybercheck360.com
Required data collection, according to the developer:
- Browsing activity
- Website activity
- Website content
More information
- Add-on Links
- Version
- 1.0.1
- Size
- 160.48 KB
- Last updated
- 4 days ago (Sep 2, 2026)
- Related Categories
- License
- All Rights Reserved
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
- Add to collection